Not quite scooter, the percentage of ethanol is reflected in the actual #, E85 is 85% ethanol 15% gas, E30 is 30% ethanol and 70% gas and so on.
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... What are you talking about? I'm talking about the amount of total fuel being sprayed out of the fuel system, not the content...

The content is literally in front of your face, you don't need to explain to me that e30 is 30% ethanol and e70 is 70% ethanol dude...

 

I have run nothing but E85 for 2 1/2 years in my 5.0 and never had a single problem and there is a very noticeable difference in power

 

Ahh injector on time better known as pulse width. Totally misunderstood what you were saying. It happens when ya get old like me LOL
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I run mine 9 months a year on E85, with no problems but enjoy the extra power.

 

this is assuming when you're buying E85 that it's actually E85. It's well known that stations get wildly different ethanol percentages in their "e85" I've seen numbers as low as 40-50% and as high as 90, and it changes shipment to shipment (at least around here at the several stations that carry it)

it's to the point where most folks serious about running it and tune for it carry around testers to make sure they're safe.

 

If its a flex fuel vehicle E85 will make more power with less fuel mileage. As stated above E85 from the pump varies from pump to pump so if your tuned to the edge of verified 85% test every time you fill up. If its not a flex fuel vehicle make sure all fuel system components are E85 compatible. E85 will destroy rubber O-rings and seals. Its also corrosive to bare aluminum.

 

+1 only about 2 months though....I think started on the second tank since it was new. Runs really well on it.


Mike

 

It works great to mix it with a 5.0 with a 87-93 octane tune. It also will help ensure if your on 93 tune that you stay at least at 93. I always wonder if the gas guy can make a mistake or if the fittings are different for the different octanes when the gas truck delivers. Any way yes more power and yes less fuel mileage.

 

Okay, I have emailed back and forth with Bret over at MPT. He stated that the F150 will have no problems running E30 with a proper tune. They currently tune for E30 but it takes a few data logs to really zero it in. He also explained all of the variables and talked me through what to expect. I am going to proceed with an E30 tune and I will chronicle the process.