100% Gasoline vs 10% Ethanol

Campfire Time wrote:

Sam Spade wrote:

Campfire Time wrote:
I'm not even convinced that you get better mileage from 0%.

You don't have to believe it for it to be true.
It IS true.
The alcohol contains 10% less energy content.

And the computers don't control "everything".
There is no "octane" detector and no ethanol detector either.

Lynnmor wrote:

Campfire Time wrote:
I'm not even convinced that you get better mileage from 0%. The computer in a modern vehicle controls every aspect of the ignition system and knows what fuel you are burning. It adjusts accordingly. Of course, YMMV as they say.

In other words you really should just test it out. Run a couple of tanks of each and compare.

There is less energy in ethanol and the computer cannot adjust for that.

So, you guys have both tried it for yourselves, compared a couple of tanks of E-10 and a couple of tanks with no Ethanol? I have. There is virtually no difference. I'm talking about E85, I'm referring to E-10. Now, this could certainly vary from vehicle to vehicle and is probably far more noticeable in a truck or large SUV. But not an average sized car. And if you don't believe the computer can make the adjustments, you have not kept up with modern auto technology.