Fuel Additives

It forms non-combustible gums that form deposits in fuel systems / combustion chambers, which decreases engine performance / fuel economy and increases emissions.
Category: Fuel Additives
No, but it will prevent it from degrading any further, and allow it to be safely used without forming engine deposits.
Category: Fuel Additives
When used at our recommended dosages, Max-Clean will stabilize fuels with less than 10% ethanol for up to 2 years. For fuels containing 10% or great ethanol content, Max-Clean will stabilize for up to 1 year.
Category: Fuel Additives
Max-Clean is suitable for use in all liquid automotive-type fuels, including gasoline, ethanol, diesel, and bio-diesel.
Category: Fuel Additives
Yes, it will not harm catalytic converters or oxygen sensors, and will clean/remove deposits in port injected, direct injected, and carbureted engines.
Category: Fuel Additives
It contains polyetheramine (PEA), a proprietary detergent that solubilizes deposits so they can be burned during the combustion cycle in an engine.
Category: Fuel Additives
No, but a cleaner burning engine has a reduced octane requirement,which allows less expensive, lower octane gasoline to be used without the risk of detonation.
Category: Fuel Additives
Pour entire contents of can into a nearly empty tank and refuel. One (1) can treats up to 20 gallons. For tank sizes outside of this range, use one (1) ounce per gallon. In 2-cycle engines, to ensure best mixing with the 2-cycle fuel/oil mixture, we recommend adding Max-Clean to the gas tank prior to putting the 2-cycle fuel/oil mixture into it.
Category: Fuel Additives
Royal Purple Max-Boost provides up to 30 points (3 octane numbers) increase in fuel octane, which meets or exceeds the boost of any other non-lead consumer octane boosting product available, and it carries the added benefits of stabilizing fuel, cleaning deposits, and providing protection for non-hardened exhaust valve seats (lead substitute). It effectively replaces 2 to 4 products, depending on your needs.
Category: Fuel Additives
Each 16oz bottle of Max-Boost treats up to 25 gallons of gasoline with a recommended dosage of 1 ounce of Max-Boost per gallon of fuel. To ensure best mixing with fuel, it is best to add Max-Boost to your fuel tank at fill-up, prior to putting the fuel into the tank.
Category: Fuel Additives
Max-Boost is safe for use in any gasoline and gasoline/ethanol blend of fuel, but many non-performance cars do not benefit from high octane fuel. If the fuel stabilization and cleaning benefits of Max-Boost are what you want, rather than the increase in octane, we recommend Royal Purple Max-Clean Fuel System Cleaner & Stabilizer.
Category: Fuel Additives
Yes, Max-Boost works in any gasoline or gasoline/ethanol blend fuel delivery system and will work great for any engine that runs best with high octane fuel.
Category: Fuel Additives
Royal Purple Max-Tane is better than any other consumer diesel additive because it does the job of every other consumer diesel fuel additive. Max-Tane is a cetane booster, a fuel lubricity enhancer, a fuel anti-gel, fuel system and injector cleaner and improves fuel economy up to 10%. Royal Purple Max-Tane effectively replaces up to 4 other diesel fuel additive products.
Category: Fuel Additives
Royal Purple Max-Tane is formulated for use in any diesel-type vehicular fuel including #1 and #2 diesel, biodiesel, and ultra-low sulfur diesel fuels.
Category: Fuel Additives
Royal Purple Max-Tane is available in a 20 ounce can. Each 20 ounce can treats up to 100 gallons of fuel. To ensure best mixing with fuel, it is best to add Max-Tane to your fuel tank at fill-up, prior to putting the fuel into the tank.
Category: Fuel Additives
Royal Purple Max-Tane is available in a 20 ounce can. Each 20 ounce can treats up to 100 gallons of fuel. To ensure best mixing with fuel, it is best to add Max-Tane to your fuel tank at fill-up, prior to putting the fuel into the tank.
Category: Fuel Additives
It is the only additive formulated specifically for direct injection gasoline (DIG) engines, and is the most concentrated PEA fuel injector cleaner available on the market today.
Category: Fuel Additives
It is polyether amine, a powerful detergent proven most effective at removing coked deposits found on injectors in DIG engines.
Category: Fuel Additives
No, it can be used with any type of injectors, including port injectors, and diesel injectors.
Category: Fuel Additives
It cleans injectors and restores proper flow, which optimizes injector spray patterns and better atomizes fuel as it enters the combustion chamber.
Category: Fuel Additives
Yes, it can be used in any gasoline and ethanol blend (E5, E10, E15, E85, etc.), and it provides the additional benefit of ethanol stabilization.
Category: Fuel Additives
For best results, use at every fill-up. Use every 3,000 miles, or as necessary, to maintain adequate engine operation.
Category: Fuel Additives
Max-Atomizer is a stand-alone fuel injector cleaner. Max-Clean offers the injector cleaning of Max-Atomizer and also provides cleaning of piston crowns and combustion chambers, fuel stabilization, and demulsification of water from ethanol-containing fuels.
Category: Fuel Additives