E/85 Fuel

S/C BOB · Jun 10, 2010

I hear of some running E/85 Fuel in their Farmall tractors M,C,A etc without any trouble. I m thinking about it what s your pros and cons. Thanks Bobby

rustyfarmall · Jun 10, 2010

I've been thinking of it myself, but so far have not done it. I think it would work quite well but probably would need to adjust the carburetor main load adjustment screw to allow more fuel to the engine, and then again, maybe not.

Janicholson · Jun 10, 2010

E85 has less energy in it. The alcohol blend is less dense, and less carbon rich compared to gasoline, or diesel
125,000 btu/gal gasoline
76,000 btu/gal ethanol
Thus there will be a need to provide a close approximation of that much more fuel to burn the appropriate air when changing over. It might run it will not be happy.
Gal/hr at load will also be compromised at the same rate. Jim

sflem849 · Jun 10, 2010

The tractor pull guys say you have to pour a lot more fuel to the motor with E85. I am not sure what to do or how to do it or how much fuel. Sorry for the vauge post. You could try searching over there. I was on the pulling forum last night and there were about 15 posts on E85 in the first three pages.

rustyfarmall · Jun 10, 2010

I wonder if anyone has ever done a dynometer comparison?

Janicholson · Jun 10, 2010

Yes. The engines can produce the same HP if, (and only if) the compression is raised to 10.5:1 (not a fixed number, just very approximate based on a slow turning engine) The (effective) "octane" rating of alcohol is much higher and thus allows substantial increase in compression pressure. THis brings the engine into the same range of HP as gasoline (minus the increased consumption/HP/HR. Jim

F-Dean · Jun 10, 2010

I do not believe there would be any problem running E-85 in the old dual-fuel engines such as the F-20. Your fuel tank and lines sure will be clean. Gasahol (E-10) has disolved all the crud in the fuel systems of my F Series tractors.

John M · Jun 10, 2010

Ive put it in my Ms for a few years now and I hadnt touched the carb once to adjust it. It does take me Im guessing another half gallon - 1 gallon of E85 to cut my feild though.

CJ_1080 · Jun 10, 2010

I have a farmall h that is modified for tractor pulling. I run straight E-85 (your welcome American farmers). It is true that it will use more fuel. The octane rating of ethanol is anywhere from 110-130 depending the time of year. You may have to adjust your carb/ rejet the main jet to compensate for it. The only drawback to it is that ethanol absorbs water prety quickly! So much so that if you get a lot of humid or rainy days you may want to consiter some Iso Heet treatment for the fuel. Or some seafoam or stabil marine for ethanol gas treatment. I do this on my pulling tractor! Plus the E-85 is cheaper than race gas, and it supports the local farmer instead of the foreign towel heads! God bless America, and good luck!

Larry B 1486 · Jun 10, 2010

I run E-85 in my old ford pickup truck. It's a 1994 model with a 460 V8. It's only used in a 40 mile radius as a service truck. Works fine in it. Run it for three years in it now with no problems. Can't really tell anything on gas mileage, four wheel drive at 12 mpg with gas or E-85. I started mixing it 50/50 at first then tryed it straight and could not tell any difference. Put a couple bottles of heat in it in the fall and spring to remove any water.

E/85 Fuel

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