Maxima Hi-Test Octane Booster - 16oz

Maxima Hi-Test Octane Booster is a concentrated fuel additive designed to raise octane rating and prevent detonation in V-twin motorcycle engines. Formulated without lead, manganese, or phosphorus, it eliminates pinging and knocking caused by low-quality gasoline.

Features

• Concentrated octane booster formula
• No lead, manganese, or phosphorus compounds
• Compatible with gasoline, alcohol, and nitro fuel blends
• Suppresses detonation and preignition
• Eliminates pinging from low-quality gas

Specifications

• Brand: Maxima
• Manufacturer Part #: 83916
• UPC: 851211005984
• Volume: 16 oz
• Weight: 1.02 lbs
• Dimensions: 2.7 in W × 2.7 in D × 7.15 in H

Fitment

Designed for V-twin motorcycles, including Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

How much octane booster do I add per tank?

Follow the label instructions on the bottle for correct dosing based on your tank size. Typically used at a rate of 1-2 oz per 10 gallons of fuel.

Will this work with ethanol blends and alcohol fuels?

Yes — Maxima Hi-Test mixes with gasoline, alcohol blends, and nitro fuel mixtures without separating.

Does this contain lead or other harmful metals?

No — this formula is metal-free and contains no lead, manganese, or phosphorus compounds.

What causes pinging in a V-twin engine?

Pinging occurs when low-octane fuel ignites too early in the combustion cycle. Maxima Hi-Test raises octane to prevent this detonation.

Can I use this with my stock fuel management system?

Yes — as a fuel additive, it works with any fuel injection or carburetor system without modifications needed.