Does anyone have any good experience with fuel octane boosters ?

There is no 93 octane available on the water here and my motors needs 93. My boat lives on a lift and is a bear to take out and drive through a gas station. Boat alone is 38ft.

Several people have said, and I've read, that among the octane boosters available Lucas was their favorite. I'm trying it right now at 1 bottle per 15-17 gallons gas. Discount qty prices @ $7.59 per bottle.

Any comments ?

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