Royal Purple Max-Boost Octane Booster — 16 fl. oz. Bottles (6-Pack), Concentrated MMT, Reduces Knock

Royal Purple Max-Boost is a concentrated octane booster and fuel stabilizer designed to raise gasoline octane, reduce engine knock, and help stabilize fuel for racing and high-performance applications.

Engineers formulated Max-Boost to target combustion problems caused by low-octane fuel. Using a concentrated MMT-based blend, this treatment increases octane rating, helps prevent detonation and pre-ignition, and supports smoother operation under heavy load. Sold here as a six-pack of 16 fl. oz. bottles, the product is intended for race teams, performance hobbyists, and anyone using low- or variable-quality gasoline who needs reliable octane enhancement and fuel stability.

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

Max-Boost is formulated to deliver major octane enhancement when dosed according to the label. Under typical conditions it can raise octane by as much as 30 points (equivalent to about 3 octane numbers), though exact gains depend on fuel chemistry and engine variables. For best results, follow Royal Purple's dosing instructions and recheck performance in your specific vehicle.

• Raises octane up to 30 points or 3 octane numbers
• Concentrated MMT formula for strong single-dose effects
• Works in a wide range of gasoline blends and conditions

Will this stop my engine from knocking or pinging?

Max-Boost is intended to reduce or eliminate knocking, pinging, and other detonation issues caused by low-octane fuel. By elevating the fuel's resistance to premature ignition, it helps protect the engine during high-load and high-compression operation. If knocking persists, check timing, fueling, and mechanical conditions as well.

• Reduces engine knock and audible pinging
• Helps prevent detonation and pre-ignition in stressed engines
• Supports safer, more consistent combustion under load

How does Max-Boost affect fuel system stability and economy?

Beyond octane improvement, this treatment contains stabilizing agents that help keep stored fuel from degrading and forming varnish or deposits. Restoring proper combustion efficiency can also recover lost power and improve fuel economy that was reduced by low-octane or aged gasoline. Always combine good maintenance practices with additive use for the best long-term results.

• Stabilizes fuel for storage and seasonal use
• Helps restore power and can improve fuel economy
• May reduce deposit formation in the fuel system

How should I use the 16 fl. oz. bottles and how many will I need?

Each 16 fl. oz. bottle treats multiple gallons depending on target octane increase—follow the label for precise dosing. The six-bottle pack gives flexibility for multiple tanks or repeated treatments during a season. For racing applications or very large tanks, calculate dose per tank and carry extra bottles as needed.

• Follow manufacturer dosing directions printed on the bottle
• One bottle treats a range of tank sizes depending on desired octane increase
• Six bottles provide multiple treatments for cars, boats, or stored fuel

Who is this for? Royal Purple Max-Boost is aimed at racers, performance enthusiasts, and anyone using low-octane or stored gasoline who needs a robust octane increase and improved fuel stability. It's also useful for shop owners and motorsport crews who require a reliable, concentrated booster for tuning and track use. If you follow your vehicle manufacturer's guidelines and monitor engine behavior after treatment, Max-Boost provides a practical way to address octane-related performance issues without altering engine hardware.