Learn when premium fuel is actually required, what the different grades mean, and how to avoid paying too much.
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The Best Octane Boosters You Can Buy
This octane booster will significantly raise the octane of premium fuel (91 octane) to 102 octane when using a 32-ounce bottle with 10 gallons of gas. When using a 32-ounce bottle with 5 gallons of ...
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