E20 fuel??

sbrice54 · 08-07-2007, 11:35 PM

Can "we" burn e20 fuel without modification of the fuel system? I know e85 requires the system to be engineered that way. e20 is about $2.49 here. MUCH cheaper than 10% ethanol gasoline....

PurdueGuy · 08-07-2007, 11:42 PM

E20 will be fine. It takes a really high concentration of ethanol (like in E85) before it starts to affect seals.

**Ssicarman** · 08-08-2007, 01:56 AM

You should actually check your owners manual. It will give you the fuel guide lines as to whast you should and shouldn't use.
I suspect that you ill find E20 to be to high. It could depend on the year of the car though.

What year and model are we talking about here?

PurdueGuy · 08-08-2007, 02:35 AM

^listen to him before me, since he's a tech. I think I've run it on occasion before with no problems. I suppose if it were the regular thing it might start to have an effect over time? *shrug*

sbrice54 · 08-08-2007, 03:08 AM

I have a 99 sl sohc.

**Ssicarman** · 08-08-2007, 05:01 AM

From a TSB. Take note of the last line.

Subject: Usage of E85 Fuels in GM Vehicles #05-06-04-035C - (07/30/2007)

Models: 1997-2008 GM Passenger Cars and Trucks (including Saturn)

2003-2008 HUMMER H2

2006-2008 HUMMER H3

1997-2008 Isuzu NPR Commercial Medium Duty Trucks

2005-2008 Saab 9-7X

Customer Interest in E85 Fuel
As the retail price of gasoline increases, some locations in the country are seeing price differentials between regular gasoline and E85 where E85 is selling for substantially less than regular grade gasoline. One result of this is that some customers have inquired if they are able to use E85 fuel in non-E85 compatible vehicles.

Important: Only vehicles designated for use with E85 should use E85 blended fuel.

E85 compatibility is designated for vehicles that are certified to run on up to 85% ethanol and 15% gasoline. All other gasoline engines are designed to run on fuel that contains no more than 10% ethanol.

Notice: Use of fuel containing greater than 10% ethanol in non-E85 designated vehicles can cause driveability issues, service engine soon indicators as well as increased fuel system corrosion.