Experience with Ethanol-Free Gas?

So glad this forum has an "ignor" feature. (JimboPalmer aint on it)

 

Yet, in an earlier post, jimbopalmer said, "E10......it has 3% less energy than E0. My Gen2 got about 7% better gas mileage on E0". That post by jimbopalmer is in excellent agreement with my five 87 octane low compression ratio gasoline engines, which obtained 8%, 8%, 7%-8%, 7% & 5% better MPG, burning 87 octane E0 compared to inaccurately, but "designated" 87 octane ethanol blend (E10).

 

Just filled up again with Powell River "magic gas" (possibly ethanol free), will see how it goes. Tank was just semi-low; it took about 27 litres to first shut-off.

 

Very easy to see if it is E-0 or not. Take a small amount and put in a glass container(I used a rain guage). If it separates with a small amount on top and majority, it is E-something. If it does not separate, it is E-0. You can determine the % by filling up to the 4 inch rain mark and seeing how much is lower and how much is upper. Do the math. It works and glass gauge is like 2 bucks at Walmart. hope this helps. Could use a glass jar to just determine if it separates.

 

If E-<non-zero> gas separates like this in a glass container, how would it not separate in your gas tank?

 

I would like to try E-0 to see how my car would work with a tank or two.

 

I think it does seperate. The movement mixes it up is my guess.

 

I think a few years ago when a lot of folks were trying this many reported 3-4 tanks to see full results, as car computers take some time to remap to different fuel, is what the more knowledgeable folks said. Or they seemed more knowledgeable.

 

IMO, as gasoline is a mix of hydrocarbon chains and acts as a solvent, ethyl alcohol would intermix completely given enough time to diffuse. If it did separate in the gas tank, the fuel pump could at some point draw pure ethanol, and given Bob Wilson’s experiments with high-concentration ethanol fuel blends, the ECU would ultimately throw a code.
I believe the specific densities of regular gasoline and ethyl alcohol are different, so if you carefully weighed an exact quantity of the combined fuel, you might be able to back-estimate the concentration of ethyl alcohol. That approach is, however, complicated by having “re-formulated” gasoline as in our urban area, which would probably also be less dense than normal blends of gasoline available elsewhere in the US. Hmmm.

 

Seems to be just the same as Vancouver gas this time around. Not sure what was going on, 2 years back, but I suspect it was ethanol-free. But yeah, nothing special this time, mpg shaping up about the same as previous tank, and new tires making it a little tougher too.