ethenol gas ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BB72CHEVKT · 01-31-2008, 02:58 AM

THe gas in my area now contains 10% ethenol. I have heard it can break up rust in the gas tank. Has anyone had probs with it in a gas tank that has been sealed?

1968SWBBigBlock · 01-31-2008, 03:13 AM

Being an alcohol it is not so bad regarding rust as it drives water out preventing rust.
Driving the water out the first time may cause some issues.
Addtionaly one needs to be careful with the seals for the sending unit, carb, and fuel lines to make sure they are all compatable.

lowrollin70gmc · 01-31-2008, 04:10 AM

With 10% you'll be fine, it's pretty much all I run in my 70 with no changes to the fuel system (Cheapest gas). You will get slightly less mileage.

I also run it in the winter in my car to keep water out of the fuel (currently -13F w/c -42) and prevent ice up.

Jim_PA · 01-31-2008, 04:13 AM

Everyone will have ethanol in the gas eventually.

BB72CHEVKT · 01-31-2008, 04:18 AM

My concern is will it eat the stuff that was used to line the gas tank.

lowrollin70gmc · 01-31-2008, 08:08 AM

I don't think it will, my truck was in a field for 10 years and I ran 10% blend in the stock tank for 2 years before switching to a fuel cell. Ever added HEET to your gas? It's ethanol and doesn't eat the crud.

oldsmobilekindofguy · 01-31-2008, 11:14 AM

I have ran my 1970 delta on 10% all the time it will not effect anything except a very slight decreacse in gas mileage. Ethonal burns cleaner and will actually clean the varnish out,
I live up here in SD were you can get E85 and I am lookng at going to lake area for auto tech and they had a mid 90s suburban non flex fuel and the guy worked at an ethanol plant and wanted to run E85 in his car so just ran it till the vehicle hit 100,000 mile and then donated it to the college so they could take it apart and inspect it,
There wasn't anything wrong with it it met all standards for measurements and whatnot.

Mudder · 01-31-2008, 12:24 PM

I've ben runnning it for 25 years and never have had a problem with it. I actaully prefer it over regular since it is a higher octane.

71swb4x4 · 01-31-2008, 12:27 PM

I have run it for 16+ years without a problem.

st1x10 · 01-31-2008, 01:03 PM

I believe all gas for the winter atleast contains atleast 10% should not do any damage.

wibilly · 01-31-2008, 01:05 PM

i didn't know you could get fuel without ethonol. all pumps around here say it contains up to 10 percent ethonol and have fora long time

01-31-2008, 02:58 AM	#1
BB72CHEVKT Junior Member Join Date: Mar 2007 Location: Hideaway, TX Posts: 4,950	ethenol gas ? THe gas in my area now contains 10% ethenol. I have heard it can break up rust in the gas tank. Has anyone had probs with it in a gas tank that has been sealed? __________________ 71 Suburban 350/700R4 Project Trixie 72 CHEVY,Highlander,SWB,396,T400 Last edited by BB72CHEVKT; 01-31-2008 at 03:24 AM. Reason: added info

01-31-2008, 03:13 AM	#2
1968SWBBigBlock Active Member Join Date: Oct 2006 Location: Ohio Posts: 1,643	Re: ethenol gas ? Being an alcohol it is not so bad regarding rust as it drives water out preventing rust. Driving the water out the first time may cause some issues. Addtionaly one needs to be careful with the seals for the sending unit, carb, and fuel lines to make sure they are all compatable. __________________ 1968 SWB 454 + .040, 490HP x 540 FT pounds of Torque 10-1 Kb Forged pistons, recon rods w/ ARP wave loc bolts 781 heads Ported with 2.19/1.88 SSTvalves Lunati 60204 cam, Micro Trol lifters, Ported Edelbrock Performer Rpm manifold armor coated, Pertronix Triple Strike Ignition Holley 770 Street Avenger carb,Headers armor coated Built by Watson Ruppel Performance in Sarahsville Ohio. Hardshift Tranny Built Turbo 350,TSI 10" 3000 stall 12 Bolt Eaton Posi 4.10 Richmond Gears moser axles 18.5" x 31" Hoosier Pro Street Radials ET Classic 5 Wheels - polished Power Steering, Power Brakes,Disc Brakes,Tach & Gauge Dash, Tilt,Factory Air (gone) Custom Paint & Body Work Special thanks to my wife, my son and my money tree

01-31-2008, 04:10 AM	#3
lowrollin70gmc Too many projects Join Date: Mar 2004 Location: Fargo, ND land of the flat hills Posts: 1,147	Re: ethenol gas ? With 10% you'll be fine, it's pretty much all I run in my 70 with no changes to the fuel system (Cheapest gas). You will get slightly less mileage. I also run it in the winter in my car to keep water out of the fuel (currently -13F w/c -42) and prevent ice up. __________________ Andrew 84 GMC C1500 SWB 6.2 Diesel/700R4/3.42 "Grandpa's odd duck" 70 GMC C1500 LWB My first truck: shaved, bagged, and more: the lowrollin70gmc 68 K20 Suburban 12V Cummins/NV5600/NP205/D60/11.5AAM 3.73s "Dakota Cadillac" 63 Chevy II Nova Coupe 250 I6/T56/4.56s "Economy car" 53 Willys Wagon 350/NV4500/BW4401/HP D44/9inch “Winter Wagon” 30 Model A 16 Focus ST

01-31-2008, 04:13 AM	#4
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: ethenol gas ? Everyone will have ethanol in the gas eventually.

01-31-2008, 04:18 AM	#5
BB72CHEVKT Junior Member Join Date: Mar 2007 Location: Hideaway, TX Posts: 4,950	Re: ethenol gas ? My concern is will it eat the stuff that was used to line the gas tank. __________________ 71 Suburban 350/700R4 Project Trixie 72 CHEVY,Highlander,SWB,396,T400

01-31-2008, 08:08 AM	#6
lowrollin70gmc Too many projects Join Date: Mar 2004 Location: Fargo, ND land of the flat hills Posts: 1,147	Re: ethenol gas ? I don't think it will, my truck was in a field for 10 years and I ran 10% blend in the stock tank for 2 years before switching to a fuel cell. Ever added HEET to your gas? It's ethanol and doesn't eat the crud. __________________ Andrew 84 GMC C1500 SWB 6.2 Diesel/700R4/3.42 "Grandpa's odd duck" 70 GMC C1500 LWB My first truck: shaved, bagged, and more: the lowrollin70gmc 68 K20 Suburban 12V Cummins/NV5600/NP205/D60/11.5AAM 3.73s "Dakota Cadillac" 63 Chevy II Nova Coupe 250 I6/T56/4.56s "Economy car" 53 Willys Wagon 350/NV4500/BW4401/HP D44/9inch “Winter Wagon” 30 Model A 16 Focus ST

01-31-2008, 11:14 AM	#7
oldsmobilekindofguy Registered User Join Date: Aug 2007 Location: Stratford,SD Posts: 296	Re: ethenol gas ? I have ran my 1970 delta on 10% all the time it will not effect anything except a very slight decreacse in gas mileage. Ethonal burns cleaner and will actually clean the varnish out, I live up here in SD were you can get E85 and I am lookng at going to lake area for auto tech and they had a mid 90s suburban non flex fuel and the guy worked at an ethanol plant and wanted to run E85 in his car so just ran it till the vehicle hit 100,000 mile and then donated it to the college so they could take it apart and inspect it, There wasn't anything wrong with it it met all standards for measurements and whatnot. __________________ 1967 c-10 longbox project, check it out in projects 1969 c-10 parts pickup, twisted frame Daily driver- 1970 Olds delta 88, 2dr., 455, gotta love the big block

01-31-2008, 12:24 PM	#8
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	Re: ethenol gas ? I've ben runnning it for 25 years and never have had a problem with it. I actaully prefer it over regular since it is a higher octane.

01-31-2008, 12:27 PM	#9
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	Re: ethenol gas ? I have run it for 16+ years without a problem. __________________ Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.

01-31-2008, 01:03 PM	#10
st1x10 Registered User Join Date: Feb 2006 Location: Oklahoma City Posts: 588	Re: ethenol gas ? I believe all gas for the winter atleast contains atleast 10% should not do any damage. __________________ 1970 Chevy C10 "Under Construction" 2002 Chevy S10 V6

01-31-2008, 01:05 PM	#11
wibilly Senior Member Join Date: Nov 2005 Location: northwestern wi Posts: 2,111	Re: ethenol gas ? i didn't know you could get fuel without ethonol. all pumps around here say it contains up to 10 percent ethonol and have fora long time __________________ common sense isn't so common anymore



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