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What octane gas do you use? (The Mother thread)

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Old 06-20-14, 06:15 AM   #286
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gates had to change their composition of their fuel lines to support ur statement btw and also it was ruining fuel pumps
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Old 06-20-14, 07:06 AM   #287
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the E10 and E0 gas i definitly see a decrease in economy when using the michigan mandated 10%.
in ontario, Shell Vpower has 0% ethanol content, just allll gasoline.

Ethanol has a lower energy/mole value compared to gasoline, but also a higher octane rating (about 108 if i recall correctly). So you need more of it to achieve the same power output.

The stoich value for E85 is lower as well, somewhere around 9.5:1 vs 14.7:1. BIG difference there.
Guys make big power on E85 because it resists detonation well, but you almost have to double your injector and pump to keep up with the volume demand.

As for my scenario, i see about a 50km reduction of range in my foxbody when im running E10 vs E0. Same highway route, same speed.

And python your right-Ehtnaol is very corrosive for aluminum and some rubbers. I believe nitrile is ethanol resistant. It is also a much drier(less lubricating) fuel than gasoline.
2000 LS400 Platinum Edition, 115k miles. Custom red interior,, wald sides, ls460 front, custom rear, air ride.
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Last edited by Greg5OH; 06-20-14 at 07:10 AM.
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