E85 is among the most idiotic ideas ever - along with any ethanol-based fuels. With millions of people starving in the world and more malnourished, we are burning FOOD in our cars. And why? To line the pockets of those who are profiting from the "carbon credit" scam. And who pays for it? Taxpayers do - in ethanol subsidies and in the increased cost of fuel we buy. If God had meant for man to burn ethanol in cars, He'd have designed people so that corn was inedible...



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Well there are 2 types of corn. Sweet and field. Which do they use for the fuel? My guess is field as there is a bunch of it around. My guess though. Have you ever tried eating field corn? Its bad. You can make itbearable by soaking it in sugar water, but its still nasty.

 

My '12 5.7 citadel doesn't say on the gas cap so I'm guessing not. I'm actually getting better mileage with 87 vs 89 buti just got my D and it had 16k on it.

 

I use e85 during the summer months..the gas mileage difference isn't as drastic that way..It seems to run a little better on it (imho)..It's always 40-50 cents cheaper/gal here..The Ds were designed for it so why not take advantage of saving a few $? The real world diffences between it and reg gas are not as different as the guides make it seem..

 

How do I know if I can run it in my '12 5.7? I have that eco thing but not sure what to check?

 

mine said it on my gas cap

 

Only the v6 can run e85..yellow gas cap is the tell

 

I'll put the yellow cap from my wife's '13 Journey on it then. Lol. I wouldn't use it anyway, I prefer performance.
Has anyone tried 90 octane Marine fuel? I used to put it in my boat and it's just 90 octane unleaded gas with no ethanol.

 

E85 has better performance than gas. It's octane rating is like 107. It just takes more fuel to make more power. It's weird, but you will gain performance but loose mpg with e85. My old range stated in the service manual 10hp gains with e85. I've seen subaru guys jump 50hp on e85. It just takes more volume.

 

I've read several articles about ethanol blended gas and if you take the same amount of gas with the same octane.... With And without ethanol, the non ethanol fuel will have more "energy" so it detonates with more force which would mean The non ethanol should give more hp. Only question is, without a tune, would it help or hurt by using non ethanol fuel.

Wanted to clarify...e85 is rated at 105 octane so the higher octane would give more hp if tuned for it. My question is mainly 91 with 10% ethanol vs 91 non ethanol in my D.