sdowney717
Guru
- Joined
- Jan 26, 2016
- Messages
- 2,264
- Location
- United States
- Vessel Name
- Old Glory
- Vessel Make
- 1970 Egg Harbor 37 extended salon model
If you simply add water to E10 gas, then shake and let set, the gas will phase separate, with alcohol-water mix on bottom and PURE gasoline on top. This will drop the octane a couple of points.
Thing is, if you buy mid or high octane instead of regular, add water, then pour off pure gasoline, you will have at least a regular rated pure gasoline grade to use.
So you dont have to buy aviation gas.
I do that with my lawnmower engines. Will work for small outboard engines also.
For lawnmowers, they have low compression ratios, so this works fine even starting with regular phase separated gas.
You lose 10% of your gas since it is E10.
Thing is, if you buy mid or high octane instead of regular, add water, then pour off pure gasoline, you will have at least a regular rated pure gasoline grade to use.
So you dont have to buy aviation gas.
I do that with my lawnmower engines. Will work for small outboard engines also.
For lawnmowers, they have low compression ratios, so this works fine even starting with regular phase separated gas.
You lose 10% of your gas since it is E10.
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