GOODYEAR CRX SX 5W-40 is a fuel saving and fully-synthetic motor oil containing Ester and PAO. Its special boron nitride formulation enables high performance under heavy-duty operating conditions. The advanced motor oil helps to keep the engine clean from dirt, sludge, and deposits. Its low viscosity fluidity allows for an enhanced cold start, faster response, and helps gain additional power from the engine. It also helps to provide thermal and oxidation stability, reduces combustion deposits, and enables the engine to give a higher power output.