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Maxima Hi-Test Octane Booster

Safeguard your engine against the potentially destructive results of detonation with Maxima Hi-Test. One ounce per gallon effectively raises octane approximately 2 to 4 points.


  • Can be use in 2-stroke and 4-stroke engines
  • Will not effect plastic gas tanks
  • Stops knocks and pings
  • Increases horsepower
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Product Style Item # Store SKU Manufacturer Product # Availability
16oz 166914 83916 83916 In Stock: Ships within 24 hours