Royal Purple Max-Boost Octane Booster 16 oz — +Up to 30 Octane Points, Stabilizes Fuel

Royal Purple Max-Boost is a concentrated octane booster and fuel treatment that raises gasoline octane, stabilizes fuel, and reduces engine knock for high-performance and forced-induction engines.

Designed for racers, performance enthusiasts, and anyone running demanding engines, this 16 fl oz can of Max-Boost combines a potent octane-enhancing chemistry with deposit control to help engines run smoother under stress. The formula uses MMT to deliver strong octane gains while remaining compatible with carbureted, port- and direct-injection systems as well as turbocharged, supercharged, and nitrous-equipped setups. It’s also formulated to be safe for oxygen sensors and catalytic converters when used as directed.

How much octane improvement can I expect from Max-Boost?

Max-Boost is engineered to produce substantial increases in gasoline octane when added at recommended dosing. Typical results can be as much as 30 octane points (about 3 numbers) depending on starting fuel quality and mix ratios, giving extra margin against detonation and pre-ignition in stressed engines.

• Up to +30 octane points (around +3 AKI numbers) under ideal dosing.
• Effectiveness varies with baseline fuel octane and blend ratios.
• Works in both leaded and unleaded fuels, and across ethanol blends.

Will Max-Boost protect my catalytic converter and sensors?

Royal Purple designed Max-Boost to be compatible with modern emissions systems when used correctly. The formulation protects converters from phosphorus buildup that can come from high-performance oils, and it’s safe for oxygen sensors and catalytic converters under normal use.

• Formulated to limit phosphorus-related converter degradation.
• Safe for O2 sensors and catalytic converters when dosed per instructions.
• Not a substitute for proper maintenance of emission components.

Is Max-Boost suitable for my engine and fuel type?

Max-Boost is versatile across fuel systems and engine configurations, from classic carburetors to modern direct-injection, as well as forced-induction and nitrous-assisted setups. It works with standard gasoline, reformulated fuel, gasohol, and all ethanol blends, making it a flexible option for many vehicles and race applications.

• Compatible with carbureted, port- and direct-injection engines.
• Safe for turbocharged, supercharged, and nitrous-equipped motors.
• Usable with ethanol blends, gasohol, and reformulated gasolines.

How should I use Max-Boost and what precautions matter?

Follow the manufacturer’s dosing directions printed on the can for the correct octane boost and to avoid overuse. Max-Boost is a potent racing-grade formula and is not street-legal; it’s intended for competition and off-road applications where high-octane performance is required.

• Use the specified dose for your fuel volume to achieve desired octane rise.
• Do not use for routine street driving where racing additives are restricted.
• Store upright, away from heat and open flame; keep out of reach of children.

Who this is for: Royal Purple Max-Boost 16 oz is aimed at motorsports teams, weekend racers, and performance vehicle owners who need maximum octane and detonation suppression for high-compression, boosted, or nitrous-injected engines. If you’re tuning for peak power, combating knock under load, or preparing a race car that requires a high-octane solution compatible with modern fuel systems, this concentrated treatment provides a strong, targeted option. Not recommended for routine on-road use where local regulations prohibit racing additives.