help with iffy gas?

[nola mike]

I agree with @dingbat on this one. There isn't any chemical reaction with the hydrocarbons, the ethanol precipitates out with the water. Possible some of the detergents come out as well. Theoretically you could measure the ethanol and replace, but... Easier to dilute with fresh gas and run it. I've siphoned the water out of my outboard tank countless times, as well as Jerry cans. Never had any sludge. I certainly wouldn't run what's left in anything high performance.

 

[nola mike]

So just did a little research and math...
The blending octane level of pure ethanol is around 110. So losing all the ethanol in AKI 87 E10 would give you an AKI of 84-85. Probably still fine for a lot of low performance applications, but certainly fine if you mix in some premium, or enough regular.

 

[alldodge]

Lets see, once ethanol absorbs all the water it can, the rest floats to the bottom. Suck out the excess water on the bottom and your left with gas mix containing max water it can hold.

Increasing octane rating with booster. The higher the octane the slower the gas burns. Low octane burns faster. Adding water to gas will cause it to burn slower (if it does burn), so its an octane booster


I would prefer to lower the octane not increase it. But hey its ya'lls boat

 

[nola mike]

Lets see, once ethanol absorbs all the water it can, the rest floats to the bottom. Suck out the excess water on the bottom and your left with gas mix containing max water it can hold.

Regular gas can't hold any water. So once you suck out the water on the bottom, there's nothing left.

Increasing octane rating with booster. The higher the octane the slower the gas burns. Low octane burns faster. Adding water to gas will cause it to burn slower (if it does burn), so its an octane booster


I would prefer to lower the octane not increase it. But hey its ya'lls boat

Well, the lower octane makes it easier to pre detonate and grenade your engine, so there's that. Don't want to go too low.

 

[alldodge]

Heard it here first from Professor Mike, class dismissed

 

[Bondo]

Heard it here first from Professor Mike, class dismissed

Ayuh,..... I think I'll close this one, before it really goes off the rails,....