Royal Purple Max-Boost Octane Booster 16 fl. oz. (6 Pack) — Raises Octane & Stabilizes Fuel

Royal Purple Max-Boost is a concentrated octane booster and fuel-stabilizing treatment designed to raise gasoline octane and reduce engine knock in performance and racing applications.

Max-Boost from Royal Purple is formulated for drivers and racers who want a fast, reliable way to increase fuel octane and improve combustion stability. It contains MMT and other chemistry tuned to deliver significant octane lift, help prevent pre-ignition and reduce pinging from low-octane gasoline, while also helping keep fuel stable during storage or intermittent use. The product is supplied here in a convenient 16 fl. oz bottle sold as a six-pack for frequent use or multiple vehicles.

How much octane increase can I expect from a single treatment?

Depending on fuel quality and dosage, Max-Boost can raise octane substantially — often by several research octane numbers — which helps engines run closer to intended timing without knock. Gains vary by starting octane and engine characteristics, so follow recommended dosing for predictable results.

• Typical increase: up to about 30 AKI points or 3 octane numbers in optimal conditions
• Dosage: follow bottle directions for your fuel tank size to match targeted octane lift
• Use cases: periodic boost for racing, high-compression builds, or poor-quality fuel

Will Max-Boost protect my engine from detonation and pre-ignition?

Max-Boost is formulated to reduce detonation and limit pinging caused by insufficient octane, helping combustion occur at the intended time. While it reduces the risk of knock in many situations, it does not change ignition timing or replace proper engine tuning; it should be part of an overall performance strategy.

• Molecular additive (MMT) increases fuel resistance to knock
• Helps stabilize combustion for smoother power delivery under load
• Works best when combined with correct ignition timing and engine tuning

How does Max-Boost help with fuel stability and emissions?

In addition to octane enhancement, Max-Boost contains stabilizing agents that slow fuel degradation during storage and intermittent use, which is useful for seasonal vehicles and race cars. Better fuel stability can support cleaner combustion, which may in turn reduce certain tailpipe byproducts relative to degraded fuel, though emissions depend on the whole engine system.

• Fuel stabilizers reduce oxidation and varnish buildup over time
• Smoother combustion can decrease incomplete burn-related deposits
• Recommended for stored vehicles, infrequently used engines, and race prep

How should I use this 6-pack to get consistent results?

Each 16 fl. oz bottle mixes with a range of tank sizes depending on desired octane lift. Use one bottle per recommended quantity of fuel, store unopened bottles in a cool, dry place, and add the treatment to a full tank for best mixing. Maintain records of which tanks and vehicles received treatment to ensure repeatable performance.

• Add to a full tank and run briefly to ensure even mixing
• Keep spare bottles for quick dosing at the track or during long trips
• Follow vehicle manufacturer guidelines when increasing octane

Who is this for: Royal Purple Max-Boost is intended for racing teams, performance enthusiasts, and anyone who needs reliable octane lift or fuel stabilization. It's suited to high-compression engines, forced-induction applications, classic cars in storage, and situations where pump fuel quality is inconsistent. Do not use as a substitute for proper engine tuning; consult your vehicle's service recommendations when making significant octane changes.