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This item is available as a Blem/Refurb. These are items that cannot be sold as "New" merchandise and are limited to stock on hand. See the product details for a description of the product's condition.

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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
Product Style 16oz Item # 166914 Store SKU 83916 Manufacturer Product # 83916 Availability In Stock: Requires 1-2 business days of lead time prior to shipment