Change your engine oil filter as GM suggested. No matter the oil you use.

[Bob Dunahugh]

Back when I was in collage. Myself, and others put together a Masters study=
on oil filters. And at the length of service. And at what point that the o=
il filter bypass would be opened. We drilled a lot of holes in engine block=
s for gauges. Part of the study used cars from all of the big 3 back then.=
I was alittle surprised how all 3 brands were so similar in bypass opening=
. The filter medias in general. Where getting restricted to the point that =
bypass's valves. Started at about 2400 miles. All engine where equipped wit=
h PCV's installed. This is an extremely short, and general e-mail of a ve=
ry long review of the paper. Bob Dunahugh 78 Royale _________________=
_______________ From: Bob Dunahugh Sent: Monday,=
April 29, 2019 5:09 AM To: gmclist Subject: RE: Synthe=
tics are great. But I don't see them in our old dirty engines Matt. Ho=
w often do you change your oil filter? Bob D _______________________=
_________ From: Bob Dunahugh Sent: Sunday, April 28, 2019 11:52 AM To=
: gmclist Subject: Synthetics are great. But I don't see =
them in our old dirty engines I think nowadays, most manufactures re=
commend synthetics for the engine that are produced today. Yes. Both the ol=
d/new engines have pistons that go up, and down. And a crankshaft that goes=
round, and round. But after that. It's a different world. Look how small t=
he oil filters are. And how long the oil change cycles are. These new engin=
e run extremely clean inside the crankcase. As to oil contamination. Ou=
r engine are of a different design. That produce much more of these damagi=
ng crankcase oil contaminants. You help to negate some of what these con=
taminants do to you engine. Simply by removing them by more frequent oil/fi=
lter changes. Using synthetics simply doesn't change this situation. I put =
the Howell/GM EFI system on our 403. I've noticed that my oil stays cleaner=
, longer. But even after adding the EFI. I haven't lengthened my oil change=
intervals. YES. I'm a NUT on oil changes. But I seem to get some benefits.=
As an example. I have a 98 Chevy Astro that was used for one of our busi=
nesses. Then our daughter used it for some year. Now I'm back to using it. =
I like it. The interior/seats still look great. Oil/filter changes have alw=
ays been in the 3000 mile range. The odometer is now at 324,000 miles. Hot=
oil PSI are at 50. Never add oil between oil changes. That 4.3 Chevy V6 ha=
s never been apart for anything. Always had the same old 10W-30 used in it.=
Planning on a trip to Kansas/Oklahoma from Iowa in the next few weeks with=
it. As to synthetic oils. Use them. Just don't go over 3000 miles on an o=
il change. Bob Dunahugh 78 Royale

 

[adolph santorine]

I’ve been following this thread with great interest, and just need to pass on my observations made at the local engine shop that I advise.

When they get backed up, I stop looking at the books, and become the tear down guy. One of the engine builders family has about the best bakery in the area, so the glazed donuts are superb, and the coffee is hot, and conversation is always spirited.

What I’ve observed is pretty straightforward. Engines fed a steady diet of synthetic oil and regular filter changes are much cleaner internally than those using conventional lubricants.

It’s a remarkable difference to my eye.

Further, the engines running synthetics generally run longer (hours or miles, pick your measure, same difference).

I know much of this is consistent with Dick Patterson’s findings.

But because of what I’ve learned here, and just kicking around vehicles, I use synthetic lubricants, unless there is compelling manufacturers guidance to the contrary.

So, I change my oil… and the filter too. Maybe a teeny bit more often when Walmart has cheap Mobil 1

My .02

Dolph

DE AD0LF

Wheeling, West Virginia

1977 26’ ex-PalmBeach
Howell EFI & EBL, Reaction Arms, Manny Transmission

“The Aluminum and Fiberglass Mistress"

 

[Irish Rogue]

Thanks Adolph:
That is exactly what I needed to know to switch to Mobil 1.
Mike/The Corvair a holic

Sent from my iPhone

>
> I’ve been following this thread with great interest, and just need to pass on my observations made at the local engine shop that I advise.
>
> When they get backed up, I stop looking at the books, and become the tear down guy. One of the engine builders family has about the best bakery in the area, so the glazed donuts are superb, and the coffee is hot, and conversation is always spirited.
>
> What I’ve observed is pretty straightforward. Engines fed a steady diet of synthetic oil and regular filter changes are much cleaner internally than those using conventional lubricants.
>
> It’s a remarkable difference to my eye.
>
> Further, the engines running synthetics generally run longer (hours or miles, pick your measure, same difference).
>
> I know much of this is consistent with Dick Patterson’s findings.
>
> But because of what I’ve learned here, and just kicking around vehicles, I use synthetic lubricants, unless there is compelling manufacturers guidance to the contrary.
>
> So, I change my oil… and the filter too. Maybe a teeny bit more often when Walmart has cheap Mobil 1
>
> My .02
>
>
> Dolph
>
> DE AD0LF
>
> Wheeling, West Virginia
>
> 1977 26’ ex-PalmBeach
> Howell EFI & EBL, Reaction Arms, Manny Transmission
>
> “The Aluminum and Fiberglass Mistress"
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

 

[adolph santorine]

That’s consistent with my experience.

I don’t know the cause.

Dolph

DE AD0LF

Wheeling, West Virginia

1977 26’ ex-PalmBeach
Howell EFI & EBL, Reaction Arms, Manny Transmission

“The Aluminum and Fiberglass Mistress"

>
> I have been told that Mobil 1 leaks more because the gaskets do not swell
> as much as with Mobil 1. Is there any truth to that statement?
>
> On Tue, Apr 30, 2019 at 9:59 AM Mike Kelley via Gmclist <

>
>> Thanks Adolph:
>> That is exactly what I needed to know to switch to Mobil 1.
>> Mike/The Corvair a holic
>>
>> Sent from my iPhone
>>
>>> On Apr 30, 2019, at 10:42 AM, Dolph Santorine via Gmclist <

>>>
>>> I’ve been following this thread with great interest, and just need to
>> pass on my observations made at the local engine shop that I advise.
>>>
>>> When they get backed up, I stop looking at the books, and become the
>> tear down guy. One of the engine builders family has about the best bakery
>> in the area, so the glazed donuts are superb, and the coffee is hot, and
>> conversation is always spirited.
>>>
>>> What I’ve observed is pretty straightforward. Engines fed a steady diet
>> of synthetic oil and regular filter changes are much cleaner internally
>> than those using conventional lubricants.
>>>
>>> It’s a remarkable difference to my eye.
>>>
>>> Further, the engines running synthetics generally run longer (hours or
>> miles, pick your measure, same difference).
>>>
>>> I know much of this is consistent with Dick Patterson’s findings.
>>>
>>> But because of what I’ve learned here, and just kicking around vehicles,
>> I use synthetic lubricants, unless there is compelling manufacturers
>> guidance to the contrary.
>>>
>>> So, I change my oil… and the filter too. Maybe a teeny bit more often
>> when Walmart has cheap Mobil 1
>>>
>>> My .02
>>>
>>>
>>> Dolph
>>>
>>> DE AD0LF
>>>
>>> Wheeling, West Virginia
>>>
>>> 1977 26’ ex-PalmBeach
>>> Howell EFI & EBL, Reaction Arms, Manny Transmission
>>>
>>> “The Aluminum and Fiberglass Mistress"
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
>
> --
>
> *John Phillips*
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

 

[john phillips]

I have been told that Mobil 1 leaks more because the gaskets do not swell
as much as with Mobil 1. Is there any truth to that statement?

On Tue, Apr 30, 2019 at 9:59 AM Mike Kelley via Gmclist <

> Thanks Adolph:
> That is exactly what I needed to know to switch to Mobil 1.
> Mike/The Corvair a holic
>
> Sent from my iPhone
>
> > On Apr 30, 2019, at 10:42 AM, Dolph Santorine via Gmclist <

> >
> > I’ve been following this thread with great interest, and just need to
> pass on my observations made at the local engine shop that I advise.
> >
> > When they get backed up, I stop looking at the books, and become the
> tear down guy. One of the engine builders family has about the best bakery
> in the area, so the glazed donuts are superb, and the coffee is hot, and
> conversation is always spirited.
> >
> > What I’ve observed is pretty straightforward. Engines fed a steady diet
> of synthetic oil and regular filter changes are much cleaner internally
> than those using conventional lubricants.
> >
> > It’s a remarkable difference to my eye.
> >
> > Further, the engines running synthetics generally run longer (hours or
> miles, pick your measure, same difference).
> >
> > I know much of this is consistent with Dick Patterson’s findings.
> >
> > But because of what I’ve learned here, and just kicking around vehicles,
> I use synthetic lubricants, unless there is compelling manufacturers
> guidance to the contrary.
> >
> > So, I change my oil… and the filter too. Maybe a teeny bit more often
> when Walmart has cheap Mobil 1
> >
> > My .02
> >
> >
> > Dolph
> >
> > DE AD0LF
> >
> > Wheeling, West Virginia
> >
> > 1977 26’ ex-PalmBeach
> > Howell EFI & EBL, Reaction Arms, Manny Transmission
> >
> > “The Aluminum and Fiberglass Mistress"
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--

*John Phillips*

 

[Matt Colie]

> I have been told that Mobil 1 leaks more because the gaskets do not swell
> as much as with Mobil 1. Is there any truth to that statement?
> --
> *John Phillips*

John,

I use Mobil 1 in more than just the coach, and I have not seen this.
If you change an engine to a different oil formulation, leaks often start and I can explain why. It has to do with the differences in material
absorption, but it gets complex from there.

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit

 

[Jim Hupy]

All about viscosity and molecules. Synthetics have modified ones, they are
a different chain length than dinosaur bones. More "slippery" too.
Jim Hupy
Salem, Or
78 GMC ROYALE 403 (With organic Valvoline 20-50.) I'm with Bob D. Change it
every 3500 - 4000 miles. Filter too.

On Tue, Apr 30, 2019, 10:18 AM Dolph Santorine via Gmclist <

> That’s consistent with my experience.
>
> I don’t know the cause.
>
>
> Dolph
>
> DE AD0LF
>
> Wheeling, West Virginia
>
> 1977 26’ ex-PalmBeach
> Howell EFI & EBL, Reaction Arms, Manny Transmission
>
> “The Aluminum and Fiberglass Mistress"
>
> > On Apr 30, 2019, at 1:18 PM, John Phillips via Gmclist <

> >
> > I have been told that Mobil 1 leaks more because the gaskets do not swell
> > as much as with Mobil 1. Is there any truth to that statement?
> >
> > On Tue, Apr 30, 2019 at 9:59 AM Mike Kelley via Gmclist <

> >
> >> Thanks Adolph:
> >> That is exactly what I needed to know to switch to Mobil 1.
> >> Mike/The Corvair a holic
> >>
> >> Sent from my iPhone
> >>
> >>> On Apr 30, 2019, at 10:42 AM, Dolph Santorine via Gmclist <

> >>>
> >>> I’ve been following this thread with great interest, and just need to
> >> pass on my observations made at the local engine shop that I advise.
> >>>
> >>> When they get backed up, I stop looking at the books, and become the
> >> tear down guy. One of the engine builders family has about the best
> bakery
> >> in the area, so the glazed donuts are superb, and the coffee is hot, and
> >> conversation is always spirited.
> >>>
> >>> What I’ve observed is pretty straightforward. Engines fed a steady diet
> >> of synthetic oil and regular filter changes are much cleaner internally
> >> than those using conventional lubricants.
> >>>
> >>> It’s a remarkable difference to my eye.
> >>>
> >>> Further, the engines running synthetics generally run longer (hours or
> >> miles, pick your measure, same difference).
> >>>
> >>> I know much of this is consistent with Dick Patterson’s findings.
> >>>
> >>> But because of what I’ve learned here, and just kicking around
> vehicles,
> >> I use synthetic lubricants, unless there is compelling manufacturers
> >> guidance to the contrary.
> >>>
> >>> So, I change my oil… and the filter too. Maybe a teeny bit more often
> >> when Walmart has cheap Mobil 1
> >>>
> >>> My .02
> >>>
> >>>
> >>> Dolph
> >>>
> >>> DE AD0LF
> >>>
> >>> Wheeling, West Virginia
> >>>
> >>> 1977 26’ ex-PalmBeach
> >>> Howell EFI & EBL, Reaction Arms, Manny Transmission
> >>>
> >>> “The Aluminum and Fiberglass Mistress"
> >>> _______________________________________________
> >>> GMCnet mailing list
> >>> Unsubscribe or Change List Options:
> >>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >>
> >> _______________________________________________
> >> GMCnet mailing list
> >> Unsubscribe or Change List Options:
> >> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >>
> >
> >
> > --
> >
> > *John Phillips*
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

 

[dave stragand1]

In the early days of synthetic oils, they did. It have the additives required for keeping older seals in good condition. That has long been remedied, but the belief that seals will shrink has persisted for some time since.

>

>> I have been told that Mobil 1 leaks more because the gaskets do not swell
>> as much as with Mobil 1. Is there any truth to that statement?
>> --
>> *John Phillips*
>
> John,
>
> I use Mobil 1 in more than just the coach, and I have not seen this.
> If you change an engine to a different oil formulation, leaks often start and I can explain why. It has to do with the differences in material
> absorption, but it gets complex from there.
>
> Matt
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

 

[dave stragand1]

(Correcting from the autocorrections)

In the early days of synthetic oils, they didn’t have the additives required for keeping older seals in good condition. That has long been remedied, but the belief that seals will shrink has persisted for some time since. The ‘smaller molecule’ theory is usually blamed as the culprit. Synthetics do just fine in older engines.

 

[mghamms]

I do hope that we all know that our crude oil has nothing to do with dinosaurs.

--
1977 Kingsley 455 as stock as it gets except lots of Ragusa parts

 

[dave stragand1]

Do you want to explain the abiotic/abiogenic oil theory? I'm a believer
in that myself.

-Dave
1978 Transmode near Pittsburgh

-----Original Message-----
From: Gmclist [mailto:gmclist-bounces] On Behalf Of Mike
Hamm via Gmclist
Sent: Tuesday, April 30, 2019 4:08 PM
To: gmclist
Cc: Mike Hamm
Subject: Re: [GMCnet] Change your engine oil filter as GM suggested. No
matter the oil you use.

I do hope that we all know that our crude oil has nothing to do with
dinosaurs.

--
1977 Kingsley 455 as stock as it gets except lots of Ragusa parts

 

[Jim Hupy]

RCA used to make real to reel memory storage computers. Some of the
circuitry was plugged into punch boards. Hundreds of wire jumpers as well
as some relays and other mechanical components. Whenever a problem arose,
they blamed it on "critical circuit pathways". Standard smoke and mirror
answers. Mostly B.S. but it sufficed to make the questioners go away
scratching their heads and opening their checkbooks.
And so it goes today. Syn vs Fossil oils. If you cannot dazzle them
with footwork, baffle them with B.S.
Jim Hupy

On Tue, Apr 30, 2019, 1:30 PM Dave Stragand via Gmclist <

> Do you want to explain the abiotic/abiogenic oil theory? I'm a believer
> in that myself.
>
> -Dave
> 1978 Transmode near Pittsburgh
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces] On Behalf Of Mike
> Hamm via Gmclist
> Sent: Tuesday, April 30, 2019 4:08 PM
> To: gmclist
> Cc: Mike Hamm
> Subject: Re: [GMCnet] Change your engine oil filter as GM suggested. No
> matter the oil you use.
>
> I do hope that we all know that our crude oil has nothing to do with
> dinosaurs.
>
> --
> 1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

 

[d c *mac* macdonald]

Isn't that a theory proposed by a Norwegian geologist (or someone similar)?

Somewhere in my files, I have an article about that.

D C "Mac" Macdonald​
Amateur Radio K2GKK​
Since 30 November '53​
USAF and FAA, Retired​
Member GMCMI & Classics​
Oklahoma City, OK​
"The Money Pit"​
TZE166V101966

________________________________
From: Gmclist on behalf of Dave Stragand via Gmclist
Sent: Tuesday, April 30, 2019 15:29
To: gmclist
Cc: Dave Stragand
Subject: Re: [GMCnet] Change your engine oil filter as GM suggested. No matter the oil you use.

Do you want to explain the abiotic/abiogenic oil theory? I'm a believer
in that myself.

-Dave
1978 Transmode near Pittsburgh

-----Original Message-----
From: Gmclist [mailto:gmclist-bounces] On Behalf Of Mike
Hamm via Gmclist
Sent: Tuesday, April 30, 2019 4:08 PM
To: gmclist
Cc: Mike Hamm
Subject: Re: [GMCnet] Change your engine oil filter as GM suggested. No
matter the oil you use.

I do hope that we all know that our crude oil has nothing to do with
dinosaurs.

--
1977 Kingsley 455 as stock as it gets except lots of Ragusa parts

 

[mghamms]

The popular idea that oil, gas, and coal are made of dead dinosaurs is mistaken. Fossil fuels consist mainly of dead plants coal from trees, and
natural gas and oil from algae, a kind of water plant.

> Do you want to explain the abiotic/abiogenic oil theory? I'm a believer
> in that myself.
>
> -Dave
> 1978 Transmode near Pittsburgh
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces] On Behalf Of Mike
> Hamm via Gmclist
> Sent: Tuesday, April 30, 2019 4:08 PM
> To: gmclist
> Cc: Mike Hamm
> Subject: Re: [GMCnet] Change your engine oil filter as GM suggested. No
> matter the oil you use.
>
> I do hope that we all know that our crude oil has nothing to do with
> dinosaurs.
>
> --
> 1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

--
1977 Kingsley 455 as stock as it gets except lots of Ragusa parts

 

[Jim Hupy]

Is there ANYBODY out there that believes that crude oil is made up of
dinosaurs?
We know that plants are the primary source for fossil fuels. Some of
it comes from liquid forms, some from gasses. And some is trapped in tarry
sands, some in shale rock, extracted with "fracking". Huge reserves exist
worldwide.
Cost of extraction varies a whole bunch. And is responsible for
funding a whole bunch of terrorists.
The price we pay for the games we play. But, oil revenues are what
drives the world's economy. Why is it traded on the whole market in United
States Currency?
Jim Hupy

On Tue, Apr 30, 2019, 7:08 PM Mike Hamm via Gmclist
wrote:

>
> The popular idea that oil, gas, and coal are made of dead dinosaurs is
> mistaken. Fossil fuels consist mainly of dead plants coal from trees, and
> natural gas and oil from algae, a kind of water plant.
>
>

> > Do you want to explain the abiotic/abiogenic oil theory? I'm a believer
> > in that myself.
> >
> > -Dave
> > 1978 Transmode near Pittsburgh
> >
> > -----Original Message-----
> > From: Gmclist [mailto:gmclist-bounces] On Behalf Of Mike
> > Hamm via Gmclist
> > Sent: Tuesday, April 30, 2019 4:08 PM
> > To: gmclist
> > Cc: Mike Hamm
> > Subject: Re: [GMCnet] Change your engine oil filter as GM suggested. No
> > matter the oil you use.
> >
> > I do hope that we all know that our crude oil has nothing to do with
> > dinosaurs.
> >
> > --
> > 1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
> >
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> --
> 1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

 

[jim miller]

> Is there ANYBODY out there that believes that crude oil is made up of dinosaurs?


Of course there is Jim! They are the same ones who think that arrays of solar panels yielding 3-5 watts of electricity per ft^2 of area are a viable replacement for the base-load power plants that convert tons of coal or pounds of uranium into thousands of megawatts of power per unit time...

Jim Miller
1977 Eleganza
1977 Royale
Hamilton, OH

 

[Jim Hupy]

I'm just waiting for the day when everyone in southern California plugs
their Teslas in at the same time and short out every power source in the
western power grid.
Those wind farms are a bigger ripoff than Obamacare. They are
allowed to sell their watts back into the power grid at about 10 times the
rate that coal and nuclear producers get for theirs. Kinda like Ethanol
produced from corn and mixed into gasoline. Every 10% of alcohol blended
into gasoline brings 10% more tax revenue to the feds, states, cities. Runs
like crap as well. (Rant off)
Jim Hupy

On Tue, Apr 30, 2019, 7:36 PM Jim Miller via Gmclist <

> On Apr 30, 2019, at 10:24 PM, James Hupy via Gmclist <

>
> > Is there ANYBODY out there that believes that crude oil is made up of
> dinosaurs?
>
>
> Of course there is Jim! They are the same ones who think that arrays of
> solar panels yielding 3-5 watts of electricity per ft^2 of area are a
> viable replacement for the base-load power plants that convert tons of coal
> or pounds of uranium into thousands of megawatts of power per unit time...
>
> Jim Miller
> 1977 Eleganza
> 1977 Royale
> Hamilton, OH
>
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

 

[Bob Dunahugh]

Dolph said that with synthetics. His oil stays cleaner. Engine oil decolori=
zation comes from the byproducts of combustion. That combustion in the co=
mbustion chamber is NOT an explosion. As most commonly believed. It's a ver=
y controlled/complex flame front. The only way that those contaminates can =
be reduced in our engines that we run. Is by the instalation of an EFI syst=
em that has spark control. This spark control is a huge part in cleaning u=
p crankcase contamination. Without that spark control. You just have an ele=
ctronic Q jet. One of the jobs that oils have to do in an internal comb=
ustion engine. Is to keep these crankcase contaminets in suspention. So th=
at these byproducts can be filtered out by the oil filter. I want my oil t=
o get discolored. That can mean that my crankcase is getting cleaned. Bob D=
unahugh ________________________________ From: Bob Dunahugh Sent: Tuesday, April 30, 2019 10:03 AM To: gmclist=
gmcnet.org Subject: Change your engine oil filter as GM suggested. No mat=
ter the oil you use. Back when I was in collage. Myself, and others pu=
t together a Masters study on oil filters. And at the length of service. An=
d at what point that the oil filter bypass would be opened. We drilled a lo=
t of holes in engine blocks for gauges. Part of the study used cars from a=
ll of the big 3 back then. I was alittle surprised how all 3 brands were so=
similar in bypass opening. The filter medias in general. Where getting res=
tricted to the point that bypass's valves. Started at about 2400 miles. All=
engine where equipped with PCV's installed. This is an extremely short, =
and general e-mail of a very long review of the paper. Bob Dunahugh 78 Roy=
ale ________________________________ From: Bob Dunahugh Sent: Monday, April 29, 2019 5:09 AM To: gmclist=
.org Subject: RE: Synthetics are great. But I don't see them in our old d=
irty engines Matt. How often do you change your oil filter? Bob D =
________________________________ From: Bob Dunahugh Sent: Sunday, Ap=
ril 28, 2019 11:52 AM To: gmclist Subject: Synthetics a=
re great. But I don't see them in our old dirty engines I think nowad=
ays, most manufactures recommend synthetics for the engine that are produc=
ed today. Yes. Both the old/new engines have pistons that go up, and down. =
And a crankshaft that goes round, and round. But after that. It's a differe=
nt world. Look how small the oil filters are. And how long the oil change c=
ycles are. These new engine run extremely clean inside the crankcase. As to=
oil contamination. Our engine are of a different design. That produce =
much more of these damaging crankcase oil contaminants. You help to neg=
ate some of what these contaminants do to you engine. Simply by removing th=
em by more frequent oil/filter changes. Using synthetics simply doesn't cha=
nge this situation. I put the Howell/GM EFI system on our 403. I've noticed=
that my oil stays cleaner, longer. But even after adding the EFI. I haven'=
t lengthened my oil change intervals. YES. I'm a NUT on oil changes. But I =
seem to get some benefits. As an example. I have a 98 Chevy Astro that was=
used for one of our businesses. Then our daughter used it for some year. =
Now I'm back to using it. I like it. The interior/seats still look great. O=
il/filter changes have always been in the 3000 mile range. The odometer is=
now at 324,000 miles. Hot oil PSI are at 50. Never add oil between oil cha=
nges. That 4.3 Chevy V6 has never been apart for anything. Always had the s=
ame old 10W-30 used in it. Planning on a trip to Kansas/Oklahoma from Iowa =
in the next few weeks with it. As to synthetic oils. Use them. Just don't g=
o over 3000 miles on an oil change. Bob Dunahugh 78 Royale

 

[adolph santorine]

Bob That=E2=80=99s NOT what I said. I said that the inside of eng=
ines that were in for rebuild were cleaner internally, and generally had mo=
re miles or hours on them when using synthetics. The engines using syn=
thetic were remarkably cleaner. In a very unscientific observation, en=
gines using synthetic oil averaged nearly 50% more life (same make/model) t=
han conventional oil (and since I still remember the Sinclair gasoline dino=
saur burping in the tank, it=E2=80=99 s dino to me). Two key verticals=
for gasoline engines in that shop was limo rebuilds, and well pad equipmen=
t (some of it is still gasoline powered). Pretty decent maintenance records=
on the limo=E2=80=99s, run it till it breaks on the well pad) Dolph=
DE AD0LF Wheeling, West Virginia 1977 26=E2=80=99 ex-PalmBe=
ach Howell EFI & EBL, Reaction Arms, Manny Transmission =E2=80=9CThe=
Aluminum and Fiberglass Mistress" > On May 1, 2019, at 2:42 AM, Bo=
b Dunahugh via Gmclist wrote: > > Dolph said=
that with synthetics. His oil stays cleaner. Engine oil decolorization com=
es from the byproducts of combustion. That combustion in the combustion c=
hamber is NOT an explosion. As most commonly believed. It's a very controll=
ed/complex flame front. The only way that those contaminates can be reduced=
in our engines that we run. Is by the instalation of an EFI system that ha=
s spark control. This spark control is a huge part in cleaning up crankcas=
e contamination. Without that spark control. You just have an electronic Q =
jet. > One of the jobs that oils have to do in an internal combustion en=
gine. Is to keep these crankcase contaminets in suspention. So that these =
byproducts can be filtered out by the oil filter. I want my oil to get dis=
colored. That can mean that my crankcase is getting cleaned. Bob Dunahugh=
> > ________________________________ > From: Bob Dunahugh > Sent: Tuesday, April 30, 2019 10:03 AM > To: gmclist=
st.gmcnet.org > Subject: Change your engine oil filter as GM suggested. N=
o matter the oil you use. > > Back when I was in collage. Myself, and =
others put together a Masters study on oil filters. And at the length of se=
rvice. And at what point that the oil filter bypass would be opened. We dri=
lled a lot of holes in engine blocks for gauges. Part of the study used ca=
rs from all of the big 3 back then. I was alittle surprised how all 3 brand=
s were so similar in bypass opening. The filter medias in general. Where ge=
tting restricted to the point that bypass's valves. Started at about 2400 m=
iles. All engine where equipped with PCV's installed. This is an extremel=
y short, and general e-mail of a very long review of the paper. Bob Dunahug=
h 78 Royale > > ________________________________ > From: Bob Dunahu=
gh > Sent: Monday, April 29, 2019 5:09 AM > To: =
gmclist > Subject: RE: Synthetics are great. But I don't =
see them in our old dirty engines > > Matt. How often do you change yo=
ur oil filter? Bob D > > ________________________________ > From: =
Bob Dunahugh > Sent: Sunday, April 28, 2019 11:52 AM > To: gmclist=
.gmcnet.org > Subject: Synthetics are great. But I don't see them in our =
old dirty engines > > I think nowadays, most manufactures recommend s=
ynthetics for the engine that are produced today. Yes. Both the old/new eng=
ines have pistons that go up, and down. And a crankshaft that goes round, a=
nd round. But after that. It's a different world. Look how small the oil fi=
lters are. And how long the oil change cycles are. These new engine run ext=
remely clean inside the crankcase. As to oil contamination. > Our engine=
are of a different design. That produce much more of these damaging crank=
case oil contaminants. You help to negate some of what these contaminant=
s do to you engine. Simply by removing them by more frequent oil/filter cha=
nges. Using synthetics simply doesn't change this situation. I put the Howe=
ll/GM EFI system on our 403. I've noticed that my oil stays cleaner, longer=
. But even after adding the EFI. I haven't lengthened my oil change interva=
ls. YES. I'm a NUT on oil changes. But I seem to get some benefits. As an =
example. I have a 98 Chevy Astro that was used for one of our businesses. =
Then our daughter used it for some year. Now I'm back to using it. I like i=
t. The interior/seats still look great. Oil/filter changes have always been=
in the 3000 mile range. The odometer is now at 324,000 miles. Hot oil PSI=
are at 50. Never add oil between oil changes. That 4.3 Chevy V6 has never =
been apart for anything. Always had the same old 10W-30 used in it. Plannin=
g on a trip to Kansas/Oklahoma from Iowa in the next few weeks with it. As =
to synthetic oils. Use them. Just don't go over 3000 miles on an oil chang=
e. Bob Dunahugh 78 Royale > __________________________________________=
_____ > GMCnet mailing list > Unsubscribe or Change List Options: > h=
ttp://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

 

[Bob Dunahugh]

I just called 3 of the largest engine rebuilders in Eastern Iowa. All 3 sai=
d that running oil changes over 4000 miles with any oil. Makes for great in=
come for them. I asked about older verses newer engines. As to syntetics. A=
ll said that syntetics are a good idea in engines built after 1996. But it =
still comes down to changing all oils at 3 to 4000 miles. As to mithes, a=
nd strange stories told. Iowa gets 34% of it's electricity now from wind. T=
he plan is to be close to 100% by 2030. Our only atomic plant is closing n=
ext year. So wind power is a big deal here. Most wind terbines are in NW I=
owa. But resently it was told that the sound from wind turbines cause cance=
r. REALLY? Interesting. Bob Dunahugh _______________________________=
_ From: Bob Dunahugh Sent: Wednesday, May 1, 201=
9 1:42 AM To: gmclist Subject: RE: Change your engine o=
il filter as GM suggested. No matter the oil you use. Dolph said that =
with synthetics. His oil stays cleaner. Engine oil decolorization comes fro=
m the byproducts of combustion. That combustion in the combustion chamber=
is NOT an explosion. As most commonly believed. It's a very controlled/com=
plex flame front. The only way that those contaminates can be reduced in ou=
r engines that we run. Is by the instalation of an EFI system that has spar=
k control. This spark control is a huge part in cleaning up crankcase cont=
amination. Without that spark control. You just have an electronic Q jet.=
One of the jobs that oils have to do in an internal combustion engine.=
Is to keep these crankcase contaminets in suspention. So that these bypro=
ducts can be filtered out by the oil filter. I want my oil to get discolor=
ed. That can mean that my crankcase is getting cleaned. Bob Dunahugh _=
_______________________________ From: Bob Dunahugh =
Sent: Tuesday, April 30, 2019 10:03 AM To: gmclist S=
ubject: Change your engine oil filter as GM suggested. No matter the oil yo=
u use. Back when I was in collage. Myself, and others put together a M=
asters study on oil filters. And at the length of service. And at what poin=
t that the oil filter bypass would be opened. We drilled a lot of holes in =
engine blocks for gauges. Part of the study used cars from all of the big =
3 back then. I was alittle surprised how all 3 brands were so similar in by=
pass opening. The filter medias in general. Where getting restricted to the=
point that bypass's valves. Started at about 2400 miles. All engine where =
equipped with PCV's installed. This is an extremely short, and general e-=
mail of a very long review of the paper. Bob Dunahugh 78 Royale _____=
___________________________ From: Bob Dunahugh S=
ent: Monday, April 29, 2019 5:09 AM To: gmclist Subject=
: RE: Synthetics are great. But I don't see them in our old dirty engines=
Matt. How often do you change your oil filter? Bob D _________=
_______________________ From: Bob Dunahugh Sent: Sunday, April 28, 2019=
11:52 AM To: gmclist Subject: Synthetics are great. Bu=
t I don't see them in our old dirty engines I think nowadays, most m=
anufactures recommend synthetics for the engine that are produced today. Ye=
s. Both the old/new engines have pistons that go up, and down. And a cranks=
haft that goes round, and round. But after that. It's a different world. Lo=
ok how small the oil filters are. And how long the oil change cycles are. T=
hese new engine run extremely clean inside the crankcase. As to oil contami=
nation. Our engine are of a different design. That produce much more o=
f these damaging crankcase oil contaminants. You help to negate some of =
what these contaminants do to you engine. Simply by removing them by more f=
requent oil/filter changes. Using synthetics simply doesn't change this sit=
uation. I put the Howell/GM EFI system on our 403. I've noticed that my oil=
stays cleaner, longer. But even after adding the EFI. I haven't lengthened=
my oil change intervals. YES. I'm a NUT on oil changes. But I seem to get =
some benefits. As an example. I have a 98 Chevy Astro that was used for o=
ne of our businesses. Then our daughter used it for some year. Now I'm back=
to using it. I like it. The interior/seats still look great. Oil/filter ch=
anges have always been in the 3000 mile range. The odometer is now at 324,=
000 miles. Hot oil PSI are at 50. Never add oil between oil changes. That 4=
.3 Chevy V6 has never been apart for anything. Always had the same old 10W-=
30 used in it. Planning on a trip to Kansas/Oklahoma from Iowa in the next =
few weeks with it. As to synthetic oils. Use them. Just don't go over 3000 =
miles on an oil change. Bob Dunahugh 78 Royale