Best oil to use?

> Why anyone would ever put 5w into their engine is beyond my imagination.
>
> Unless, of course you are at below 0 temperatures and driving short distances.
Yeah. I was imagining that one chance in a million where you have to stop at Bubba's Kwik Stop in the middle of nowhere and you need to add a quart or two, and all he has is 5WXX and STP.Quote:
> I use 15w50 Mobil 1 for years (not 15w40 as someone attributed to me earlier) and have camped in freezing conditions and 120 in Phoenix. It has worked well.
>
> Emery Stora
15WXX might be just what the old 455 with many miles needs/wants once the clearances have expanded a little from wear.

Does Mobil 1 come in a 15W40 flavor?
--
'73 23' Sequoia For Camping
'73 23' CanyonLands For Sale
UA (Upper Alabama)
"Time is money. If you use YOUR time, you get to keep YOUR money."
 
Sorry but AFAIC with today's oil formulations STP Snake Oil. > > R=
egards, > Rob M. Well, that "snake oil" saved me a lot of trouble. =
I just did the heads on my Cad 500. Seems valves were sticking open becaus=
e of a worn rocker system....long story. Anyway after I got it together wi=
th new rocker system, (taking lots of time to set the preload on lifters) I=
started the motor to find that three or more lifters were not pumping up =
properly. Lots of ticking noises coming from the valve train. I double ch=
ecked preload and found nothing wrong. There was no reason why those lifter=
s shouldn't pump up firm. Then I remembered, years ago, with many of the e=
ngines that I did a quick and dirty rebuilt on, if using the old lifters, s=
ometimes the old lifters would collapse and refuse to pump up properly. Ba=
ck then I use to just ad a bottle of STP and that seemed to take care of it=
....SOOO... I thought...what the hell, the only thing I can loose is the co=
st of one bottle of STP. I added a bottle of STP to my Cad. It took abou=
t 5 minutes for the STP to fully mix. The lifters pumped up and the tickin=
g stopped. In the last month now, I have put on over 1000 miles...so far..=
.so good. JWID -- Larry :) 78 Royale w/500 Caddy Menomonie, WI.=
 
I run 15W50 Mobile 1 in the stretch coach. I have alway run a 15W50 in my coaches, the 77 Eleganza II from 1997 thru 2010 ( 60K miles ) without issue.

JR Wright
78 Buskirk Stretch
75 Avion
Michigan

> Why anyone would ever put 5w into their engine is beyond my imagination.
>
> Unless, of course you are at below 0 temperatures and driving short distances.
>
> I use 15w50 Mobil 1 for years (not 15w40 as someone attributed to me earlier) and have camped in freezing conditions and 120 in Phoenix. It has worked well.
>
> Emery Stora
 
Larry,

Am I correct in saying that the viscosity increase from the STP got the lifters to pump up?

If that is what happened do you have to continue adding STP each time you change oil?

Regards,
Rob M.

-----Original Message-----
From: Larry

Well, that "snake oil" saved me a lot of trouble. I just did the heads on my Cad 500. Seems valves were sticking open because of a
worn rocker system....long story. Anyway after I got it together with new rocker system, (taking lots of time to set the preload on
lifters) I started the motor to find that three or more lifters were not pumping up properly. Lots of ticking noises coming from
the valve train. I double checked preload and found nothing wrong. There was no reason why those lifters shouldn't pump up firm.
Then I remembered, years ago, with many of the engines that I did a quick and dirty rebuilt on, if using the old lifters, sometimes
the old lifters would collapse and refuse to pump up properly. Back then I use to just ad a bottle of STP and that seemed to take
care of it....SOOO... I thought...what the hell, the only thing I can loose is the cost of one bottle of STP. I added a bottle of
STP to my Cad. It took about 5 minutes for the STP to fully mix.
The lifters pumped up and the ticking stopped. In the last month now, I have put on over 1000 miles...so far...so good. JWID
--
Larry
 
> Larry,
>
> Am I correct in saying that the viscosity increase from the STP got the lifters to pump up?
>
> If that is what happened do you have to continue adding STP each time you change oil?
>
> Regards,
> Rob M.
>
> -----Original Message-----
> From: Larry
>
> Well, that "snake oil" saved me a lot of trouble. I just did the heads on my Cad 500. Seems valves were sticking open because of a
> worn rocker system....long story. Anyway after I got it together with new rocker system, (taking lots of time to set the preload on
> lifters) I started the motor to find that three or more lifters were not pumping up properly. Lots of ticking noises coming from
> the valve train. I double checked preload and found nothing wrong. There was no reason why those lifters shouldn't pump up firm.
> Then I remembered, years ago, with many of the engines that I did a quick and dirty rebuilt on, if using the old lifters, sometimes
> the old lifters would collapse and refuse to pump up properly. Back then I use to just ad a bottle of STP and that seemed to take
> care of it....SOOO... I thought...what the hell, the only thing I can loose is the cost of one bottle of STP. I added a bottle of
> STP to my Cad. It took about 5 minutes for the STP to fully mix.
> The lifters pumped up and the ticking stopped. In the last month now, I have put on over 1000 miles...so far...so good. JWID
> --
> Larry
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
STP Oil Treatment was developed for transmissions and differentials. STP markets it for crankcases. It does reduce friction, it also increases viscosity.

In 1996 I put some in a 1992 Chevrolet Cavalier that wasn't making any adverse noises. It ticked like a lifter or piston slapping from then on (several years), even though I never added any at another oil change.

I won't put it in an engine that sounds ok.

YMMV
--
'73 23' Sequoia For Camping
'73 23' CanyonLands For Sale
UA (Upper Alabama)
"Time is money. If you use YOUR time, you get to keep YOUR money."
 
> STP Oil Treatment was developed for transmissions and differentials. STP markets it for crankcases. It does reduce friction, it also increases viscosity.

I have seen laboratory analyses of STP but didn't see anything in it that would reduce friction. Basically it was just a heavy dose of VI Improvers (viscosity index). Used car salesmen love it because it will hide leaking rings and cut out a lot of smoke at the tailpipe as well as quiet down a valve train.

You might be confusing STP with Slick 50 which touts that it reduces friction.

Personally I would not put either in my engine as it could hide potential problems and do more harm and no good.

You are welcome to disagree with me. I don't want to start a war on this.

Emery Stora
77 Kingsley
Frederick, CO
 
> I have seen laboratory analyses of STP but didn't see anything in it that would reduce friction. Basically it was just a heavy dose of VI Improvers (viscosity index). Used car salesmen love it because it will hide leaking rings and cut out a lot of smoke at the tailpipe as well as quiet down a valve train.
>
> You might be confusing STP with Slick 50 which touts that it reduces friction.
>
> Personally I would not put either in my engine as it could hide potential problems and do more harm and no good.
>
> You are welcome to disagree with me. I don't want to start a war on this.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
Not going to disagree. I won't put STP in anything that is running well.
--
'73 23' Sequoia For Camping
'73 23' CanyonLands For Sale
UA (Upper Alabama)
"Time is money. If you use YOUR time, you get to keep YOUR money."
 
I have found one instance where STP does reduce friction. Manually installing re-useable fittings on high pressure aircraft hoses in the larger sizes normally is very difficult due to the friction between the hose and the fitting to be inserted. Normal engine oil helps very little. Dip the insert into STP before installation and it screws right in with much less effort. This is the only good use for STP that I am aware of. GMC content. It will work on oil cooler hoses if you are making your own.

Hal Kading 78 Buskirk Las Cruces NM
 
In high school I worked at service station, yes a service station.
Got all hooked up on STP.
Sold the crap out of it using the screw driver trick
The old screw drive trick.
Dip the blade in STP try to hold the screw driver between thumb and forefinger by the blade.
I owned at 54 Chevy smoked like crazy added STP.
Worked
When I rebuilt the 235 found gobs and gobs of STP under the valve cover.
Emery I agree with you don't add this snake oil to your engines.
Howard
Alpine CA

All is well with my Lord

>
>> STP Oil Treatment was developed for transmissions and differentials. STP markets it for crankcases. It does reduce friction, it also increases viscosity.
>
> I have seen laboratory analyses of STP but didn't see anything in it that would reduce friction. Basically it was just a heavy dose of VI Improvers (viscosity index). Used car salesmen love it because it will hide leaking rings and cut out a lot of smoke at the tailpipe as well as quiet down a valve train.
>
> You might be confusing STP with Slick 50 which touts that it reduces friction.
>
> Personally I would not put either in my engine as it could hide potential problems and do more harm and no good.
>
> You are welcome to disagree with me. I don't want to start a war on this.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
 
> Larry,
>
> Am I correct in saying that the viscosity increase from the STP got the lifters to pump up?
>
> If that is what happened do you have to continue adding STP each time you change oil?
>
> Regards,
> Rob M.

Can't say what it was that made the lifters pump up. There is a chance that adding the STP was just a coincidence. But considering all that I did and time spent, to have them just pump up for me after adding it...is some coincidence.

Years ago, I did NOT continue adding STP on future oil changes. So, I will not add STP on the next change. We will see what happens then. (fingers crossed)

See you at GMCMI?
--
Larry :)
78 Royale w/500 Caddy
Menomonie, WI.
 
I had a Astro van with a 2.5 iron duke. Blew the oil pump in Montreal which was 8 hr from home :(
I filled it with STP and drove it home. The valve train was noisy and I stop every 100 miles to cool it down but it made it. I then put a 350 small block in it :d
Not going to give the STP all the credit and I will not use it, but at the time that's what I did.
 
Larry,

Thanks!

Yep!

Filled out form and mailed it and check to Kim the day after she announced the registration was available on the GMCMI website.

Regards,
Rob M.

-----Original Message-----
From: Larry

Can't say what it was that made the lifters pump up. There is a chance that adding the STP was just a coincidence. But considering
all that I did and time spent, to have them just pump up for me after adding it...is some coincidence.

Years ago, I did NOT continue adding STP on future oil changes. So, I will not add STP on the next change. We will see what happens
then. (fingers crossed)

See you at GMCMI?
--
Larry
 
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