Max-Boost™ Octane Booster & Fuel System Stabilizer
Royal Purple’s new Max-Boost is a high performance octane booster and fuel treatment for racing applications that increases gasoline octane, reduces emissions, and enhances engine performance while stabilizing fuel.
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Max-Clean Fuel System Cleaner & Stabilizer
Royal Purple’s new Max-Clean is a state-of-the-art synthetic fuel system cleaner that deeply penetrates and cleans injectors, carburetors, intake valves and combustion chambers to restore fuel economy and reduce emissions.
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Max Gear – High Performance Synthetic Gear Oil
Max Gear is recommended for use in truck and automotive front or rear differentials, manual transmissions and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid.
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Max-Tuff Synthetic Assembly Lubricant
Max-Tuff is an ultra-tough, synthetic lubricant. It’s designed for engine builds and repairs, specifically crankshaft, camshaft and rod bearing assembly. Max-Tuff utilizes unique, synthetic molecules that adhere to metal surfaces to create a formidable, load-bearing physical barrier between surfaces.
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Royal Purple’s Nitro Plus Oils are straight-grade synthetic motor oils formulated specifically for use in blown alcohol, nitro-methane or any racing applications that experience excessive fuel dilution.
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Racing ATF Automatic Transmission Fluid
Royal Purple’s Racing ATF is a motorsports-grade lubricant recommended for all high performance, non-electronic shift transmissions that use a Type F automatic transmission fluid.
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Engine builders have grown increasingly concerned that many modern motor oils do not provide adequate wear protection for new engines, particularly those using flat-tappet cams. Royal Purple has addressed this issue by developing a new engine break-in oil that promotes a gentle start-up and gives you superior protection from rough-running engine problems.
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XPR® – Extreme Performance Synthetic Racing Oil
Royal Purple’s XPR (Extreme Performance Racing) synthetic motor oil is specifically formulated for the demands of multi-platform racing environments. XPR is popular in a variety of motorsports including: NASCAR, NHRA, World of Outlaws and Bonneville Salt Flats.
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Royal Purple Ultra-Performance Grease (UPG) is a high performance, multi-service, aluminum-complex, synthetic grease which significantly increases bearing life and equipment reliability. It also makes bearings run smoother, cooler and quieter.


