BEL-RAY Thumper 4-T Racing Motor Oil is a premium grade oil developed specifically for the new 4-stroke motocross games that place special demands on oil compared to multi-cylinder road bikes. BEL-RAY Thumper has a very stable viscosity at extreme temperatures, which can occur, for example, in mudslides, when mud can cover the engine and interfere with the cooling system. The extremely low and large-diameter pistons in these engines also mean a greater loss of the fuel mixture in the crankcase, which means that the oil can easily be contaminated by gasoline and rust. Here too, THUMPER's ingredients effectively protect the engine's moving parts and are able to effectively encapsulate impurities. API SM, SECTION MA2.
