How do you get Fuel Stabilizer in the Aux gas tank? In a GMC.
- Thread starter Bob Dunahugh
- Start date
Seems to me that a separate fill system for each tank
would work, but probably a huge problem to install.
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
'76 ex-Palm Beach
k2gkk + hotmail dot com
________________________________
From: Gmclist on behalf of Bob Dunahugh via Gmclist
Sent: Tuesday, June 16, 2020 11:34
To: gmclist
Cc: Bob Dunahugh
Subject: [GMCnet] How do you get Fuel Stabilizer in the Aux gas tank? In a GMC.
I don't see how that can be done.
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would work, but probably a huge problem to install.
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
'76 ex-Palm Beach
k2gkk + hotmail dot com
________________________________
From: Gmclist on behalf of Bob Dunahugh via Gmclist
Sent: Tuesday, June 16, 2020 11:34
To: gmclist
Cc: Bob Dunahugh
Subject: [GMCnet] How do you get Fuel Stabilizer in the Aux gas tank? In a GMC.
I don't see how that can be done.
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anything you pour in the filler will go into both tanks, be it gasoline or stabilizer.
--johnny
--
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
--johnny
--
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
I've watched the gas gauge while filling. Most gas first goes in the main tank. As that's a straight shot back to the main tank. To flow into the front tank. That gas has to make a 90 degree turn to the left. I have one of those fill tubes. I'll test my thought tonight. Bob Dunahugh
________________________________
From: Bob Dunahugh
Sent: Tuesday, June 16, 2020 11:53 AM
To: D C _Mac_ Macdonald
Subject: Re: [GMCnet] How do you get Fuel Stabilizer in the Aux gas tank? In a GMC.
I hear of owners putting a stabilizer in their tanks. And they think the job is done. Main tank. Yes. I just drain my collector cars. Bob
________________________________
From: D C _Mac_ Macdonald
Sent: Tuesday, June 16, 2020 11:47 AM
To: gmclist
Cc: Bob Dunahugh
Subject: Re: [GMCnet] How do you get Fuel Stabilizer in the Aux gas tank? In a GMC.
Seems to me that a separate fill system for each tank
would work, but probably a huge problem to install.
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
'76 ex-Palm Beach
k2gkk + hotmail dot com
________________________________
From: Gmclist on behalf of Bob Dunahugh via Gmclist
Sent: Tuesday, June 16, 2020 11:34
To: gmclist
Cc: Bob Dunahugh
Subject: [GMCnet] How do you get Fuel Stabilizer in the Aux gas tank? In a GMC.
I don't see how that can be done.
_______________________________________________
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________________________________
From: Bob Dunahugh
Sent: Tuesday, June 16, 2020 11:53 AM
To: D C _Mac_ Macdonald
Subject: Re: [GMCnet] How do you get Fuel Stabilizer in the Aux gas tank? In a GMC.
I hear of owners putting a stabilizer in their tanks. And they think the job is done. Main tank. Yes. I just drain my collector cars. Bob
________________________________
From: D C _Mac_ Macdonald
Sent: Tuesday, June 16, 2020 11:47 AM
To: gmclist
Cc: Bob Dunahugh
Subject: Re: [GMCnet] How do you get Fuel Stabilizer in the Aux gas tank? In a GMC.
Seems to me that a separate fill system for each tank
would work, but probably a huge problem to install.
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
'76 ex-Palm Beach
k2gkk + hotmail dot com
________________________________
From: Gmclist on behalf of Bob Dunahugh via Gmclist
Sent: Tuesday, June 16, 2020 11:34
To: gmclist
Cc: Bob Dunahugh
Subject: [GMCnet] How do you get Fuel Stabilizer in the Aux gas tank? In a GMC.
I don't see how that can be done.
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> I've watched the gas gauge while filling. Most gas first goes in the main tank. As that's a straight shot back to the main tank. To flow into
> the front tank. That gas has to make a 90 degree turn to the left. I have one of those fill tubes. I'll test my thought tonight. Bob Dunahugh
At at least one of the internationals, Paul Donne has run a session where he has a pair of tanks made up like our fuel system so that he can pour
water into the pair. When he gets it right, most if not all goes into the rear tank. As said, I have witnessed this in the real world and also had
it show up in mathematical model. After only a few (many) more revisions, that model showed up why the tanks are so hard to fill and how to fix this
problem.
As the tanks are almost isolated below the mid-level, I dropped the plan to actually isolate them as one can maintain a good track of fuel on board
without all that much more effort.
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
> the front tank. That gas has to make a 90 degree turn to the left. I have one of those fill tubes. I'll test my thought tonight. Bob Dunahugh
At at least one of the internationals, Paul Donne has run a session where he has a pair of tanks made up like our fuel system so that he can pour
water into the pair. When he gets it right, most if not all goes into the rear tank. As said, I have witnessed this in the real world and also had
it show up in mathematical model. After only a few (many) more revisions, that model showed up why the tanks are so hard to fill and how to fix this
problem.
As the tanks are almost isolated below the mid-level, I dropped the plan to actually isolate them as one can maintain a good track of fuel on board
without all that much more effort.
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
Which begs the question is fuel stabilizer necessary and does it work. How much time, if any does it buy you? Any side effects? I had to put my
coach into emergency service in May and it had been parked since Oct 2019. Connected batteries negative cables and go. Filling water tank took
longer. I don’t add any products to my gas or oil. I have seen E10 go rancid, but that was in a collector car that sat 15 years. I just don’t see
any issues with one season storage. Still on Qjet. I’d rather spend the stabilizer money on fresh gas.
--
John Lebetski
Woodstock, IL
77 Eleganza II
coach into emergency service in May and it had been parked since Oct 2019. Connected batteries negative cables and go. Filling water tank took
longer. I don’t add any products to my gas or oil. I have seen E10 go rancid, but that was in a collector car that sat 15 years. I just don’t see
any issues with one season storage. Still on Qjet. I’d rather spend the stabilizer money on fresh gas.
--
John Lebetski
Woodstock, IL
77 Eleganza II
John,
I'm with you: I see no advantage to spending time/money on fuel
stabilizer. I've never had a problem that I could remotely attribute to
"old" gas. Even when I've filled too many jugs for the lawn equipment and
had it sit for a year or more, there's never been a problem, even with the
notoriously finicky 2-stroke engine. I will admit to having bought premium
gas for those for a while -- but I've now gotten out of that habit. Even
the older 2-strokes seem to be satisfied with 87 octane 10% ethanol.
Similarly with in-tank condensation: Knowing that the fuel cap on my GMC
has a 1 psi venting pressure requirement, I don't see how enough fresh,
humid, air can get into the tanks to condense a significant amount of H20
-- especially with all the ethanol in there to combine with it. Maybe it's
not really 90+% humid here!
Again, until I have problems, I can dream up more interesting things to
worry about -- like the Wuhan Virus.
Ken H.
On Wed, Jun 17, 2020 at 9:04 AM John R. Lebetski via Gmclist <
> Which begs the question is fuel stabilizer necessary and does it work.
> How much time, if any does it buy you? Any side effects? I had to put my
> coach into emergency service in May and it had been parked since Oct
> 2019. Connected batteries negative cables and go. Filling water tank took
> longer. I don’t add any products to my gas or oil. I have seen E10 go
> rancid, but that was in a collector car that sat 15 years. I just don’t see
> any issues with one season storage. Still on Qjet. I’d rather spend the
> stabilizer money on fresh gas.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
I'm with you: I see no advantage to spending time/money on fuel
stabilizer. I've never had a problem that I could remotely attribute to
"old" gas. Even when I've filled too many jugs for the lawn equipment and
had it sit for a year or more, there's never been a problem, even with the
notoriously finicky 2-stroke engine. I will admit to having bought premium
gas for those for a while -- but I've now gotten out of that habit. Even
the older 2-strokes seem to be satisfied with 87 octane 10% ethanol.
Similarly with in-tank condensation: Knowing that the fuel cap on my GMC
has a 1 psi venting pressure requirement, I don't see how enough fresh,
humid, air can get into the tanks to condense a significant amount of H20
-- especially with all the ethanol in there to combine with it. Maybe it's
not really 90+% humid here!
Again, until I have problems, I can dream up more interesting things to
worry about -- like the Wuhan Virus.
Ken H.
On Wed, Jun 17, 2020 at 9:04 AM John R. Lebetski via Gmclist <
> Which begs the question is fuel stabilizer necessary and does it work.
> How much time, if any does it buy you? Any side effects? I had to put my
> coach into emergency service in May and it had been parked since Oct
> 2019. Connected batteries negative cables and go. Filling water tank took
> longer. I don’t add any products to my gas or oil. I have seen E10 go
> rancid, but that was in a collector car that sat 15 years. I just don’t see
> any issues with one season storage. Still on Qjet. I’d rather spend the
> stabilizer money on fresh gas.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
as long as you have about 1/2 tank of gas in there, it really should mix between the two. never seen a concern.
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
We store alot of stuff in MN. always wonder why I live here!
I would say in my experience, the factors are quantity of fuel and time. a 1/2 gallon tank on a weed whip, is probably going to give you problems
after 6 months of 10% ethonal fuel in storage. that same 10% ethonal gas in 50 gallon amount in my GMC, gives me no issues stored from November to
April. I have never put sta-bil in the GMC. but usually the gas is never more then 4-5 months old.
my 84 mastercraft boat, with a 351, I generally store full of gas(10% ethonal), and put in sta-bil just after labor day, and pull it out after
memorial day. the sta-bil is probably cheap insurance. I never have a problem, but I can for sure tell that 1st tank of gas does not run as strong
or well. after a day on the lake, and I re-fil 50% of that tank back up with fresh gas, the next trip on the lake the engine is sounding better and
has better response. I think this is year 17 or 18 of running that boat 3 months a year.
We have small engine equipment at work, that usually needs a carb drain(honda motors for pumps ect..), after then sit for the winter or summer with
10% ethonal gas in them. Honda's seem to just need the fuel drained and fresh gas put in. Briggs/stratton powered stuff, the mechanics toss them,
or swap out a carb. our wacker tampers seem to be something our mechanics have a field day with getting all those back running in the spring.
I would never recommending draining gas on anything that has a metal gas tank, like our GMC's. in our 80 some degree temp swings, things rust. I
would rather clean out a varnished up tank, then one that is coated in rust!
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
I would say in my experience, the factors are quantity of fuel and time. a 1/2 gallon tank on a weed whip, is probably going to give you problems
after 6 months of 10% ethonal fuel in storage. that same 10% ethonal gas in 50 gallon amount in my GMC, gives me no issues stored from November to
April. I have never put sta-bil in the GMC. but usually the gas is never more then 4-5 months old.
my 84 mastercraft boat, with a 351, I generally store full of gas(10% ethonal), and put in sta-bil just after labor day, and pull it out after
memorial day. the sta-bil is probably cheap insurance. I never have a problem, but I can for sure tell that 1st tank of gas does not run as strong
or well. after a day on the lake, and I re-fil 50% of that tank back up with fresh gas, the next trip on the lake the engine is sounding better and
has better response. I think this is year 17 or 18 of running that boat 3 months a year.
We have small engine equipment at work, that usually needs a carb drain(honda motors for pumps ect..), after then sit for the winter or summer with
10% ethonal gas in them. Honda's seem to just need the fuel drained and fresh gas put in. Briggs/stratton powered stuff, the mechanics toss them,
or swap out a carb. our wacker tampers seem to be something our mechanics have a field day with getting all those back running in the spring.
I would never recommending draining gas on anything that has a metal gas tank, like our GMC's. in our 80 some degree temp swings, things rust. I
would rather clean out a varnished up tank, then one that is coated in rust!
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
