Race Gas Fuel Octane Booster

Race Gas Fuel Octane Boosters: Turning Pump Gas Into Race Fuel

Not all octane boosters are created equal — and Race Gas was built on that very premise. Where conventional octane boosters might nudge your fuel's octane rating by a handful of "points" (each point being just 1/10 of a full octane number), Race Gas approaches the problem from a fundamentally different angle. Rather than simply suppressing knock, Race Gas fuel concentrates are engineered to replicate the chemical properties of actual racing fuel, blending high-quality aromatics back into standard pump gasoline to raise both octane and the fuel's underlying energy content.

This distinction matters enormously in practice. Fuel octane boosters that only raise the AKI number without restoring BTU energy can actually lean out an engine at wide-open throttle — a hidden risk for high-performance builds. Race Gas addresses this directly: Race Gas has been tested and proven to increase the octane of pump gas to as high as 100 to 105 AKI (R+M/2) when blended as specified, while also raising the chemical/BTU energy of the base fuel to equal that of racing fuel. That dual-action approach sets Race Gas apart from products that only treat one side of the equation.

The Race Gas Product Lineup

Race Gas currently offers two core concentrates tailored to different performance demands:

• Race Gas Fuel Concentrate (100016 – 16 oz): The standard-formula concentrate, ideal for naturally aspirated performance engines and enthusiasts who want consistent octane gains on a per-fill-up basis. Just 2 ounces of Race Gas will raise the octane of 1 gallon of gasoline a full 4 octane numbers. For a full tank, one full 32 oz can of Race Gas booster will raise the octane of a 60L (16-gallon) fuel tank a full 4 octane numbers — for example, from 91 to 95, or 94 to 98.
• Race Gas Ultra Fuel Concentrate (200032 – 32 oz): The flagship, high-intensity formula. Race Gas Ultra is specifically designed for the requirements of very high compression, boosted, or nitrous engines. Race Gas Ultra Fuel Concentrate (200032) can increase octane up to 112, improves performance, and protects engines under extreme conditions.

A Concentrate, Not Just a Booster

Race Gas is a race fuel concentrate — the purpose of the product is to create racing fuel out of pump gasoline from any gas station. This philosophy informs everything about how Race Gas is formulated and dosed. Unlike typical octane boosters, Race Gas Ultra Fuel Concentrate chemically replicates race fuel properties, ensuring consistent and reliable performance for engines requiring higher octane levels. The concentrate uses a blend chart approach so that users can dial in the exact target AKI for their engine's tune, whether they're running a modified street car, a track-day build, or a full competition engine.

It's also worth understanding how Race Gas reports its numbers: Race Gas blend results are shown in Anti Knock Index (AKI), or R+M/2 — the same standard used by the racing industry, making it straightforward to match your fuel to your engine's requirements without confusion over RON vs. AKI discrepancies.

Who Should Use Race Gas Octane Booster?

Race Gas will work in any engine that requires high-quality, high-octane fuel. This makes the lineup relevant across a wide spectrum — from turbocharged and supercharged street builds that demand 91+ octane to dedicated race engines that would otherwise require expensive, hard-to-source race fuel. For anyone who wants the real-world performance benefits of race-grade fuel without the logistics of hauling drums to the track, Race Gas provides a practical, proven solution.