smart Operation and Maintenance
After much experimentation, I found a fuel mix that runs smooth, great mileage, and is reasonably cheap.
To ten gallons 89 Octane gas...
1 quart/liter E-85 (Octane booster)
1 ounce Sta-bil Marine formula (blue green) (Ethanol treatment)
Adjust the amounts as needed...
I just use a five gallon...