Royal Purple

Max Gear is a high performance automotive gear oil designed to provide maximum protection to heavily loaded gears while increasing power throughput through the drive train. Max Gear virtually...

Royal Purple Max-Atomizer is a highly concentrated, high performance fuel injector cleaner. It is specially formulated to solve problems with today's direct injection engines, but can be used with...

Royal Purple Max-Boost is a high-performance octane booster and fuel treatment that increases gasoline octane, reduces emissions, and enhances engine performance while stabilizing fuel. Max-Boost is...

Royal Purple Max-Clean is a state-of-the-art high performance fuel system cleaner that maximizes the performance of your fuel system. Max-Clean restores fuel economy by deeply penetrating deposits...

Formulated with select synthetic base oils and Royal Purple's proprietary Synerlec additive technology, Max-Cycle provides improved film strength when compared to the leading synthetic and mineral...

Formulated with select synthetic base oils and Royal Purple's proprietary Synerlec additive technology, Max-Cycle provides improved film strength when compared to the leading synthetic and mineral...

Max-Restore contains a high dose of polyether amine (PEA) & proprietary detergents that quickly clean stubborn, long-term deposits, often found in high mileage engines, that clog injectors and...

Royal Purple Max-Tane is formulated for year-round use in all types of light, medium and heavy duty diesel engines, and is compatible with any type or grade of diesel fuel, including #1 diesel and #2...

Royal Purple High Performance Motor Oil European Formula SAE 0W-20 Dexos D, 0W-40, 5W-30, and 5W-40 are formulated exclusively with premium synthetic base stocks and advanced additive technology to...

Royal Purple High Performance Motor Oil European Formula SAE 0W-20 Dexos D, 0W-40, 5W-30, and 5W-40 are formulated exclusively with premium synthetic base stocks and advanced additive technology to...

Royal Purple High Performance Motor Oil European Formula SAE 0W-20 Dexos D, 0W-40, 5W-30, and 5W-40 are formulated exclusively with premium synthetic base stocks and advanced additive technology to...

Royal Purple High Performance Motor Oil European Formula SAE 0W-20 Dexos D, 0W-40, 5W-30, and 5W-40 are formulated exclusively with premium synthetic base stocks and advanced additive technology to...