A clean engine starts with the proper motor or engine oil. Motor oil lubricates the moving parts of the engine, which reduces friction and in turn, ensures your motor is running efficiently and does not overheat. Ever wonder what all those letters and numbers like 5w30, 5w20, 10w30 or 10w40 mean? This refers to the viscosity (thickness) of the oil in low and high temperatures. Most full synthetic oils today are multi-grade (multi viscosity), where the number before the W refers to the viscosity for low temperatures and the number after the W is the flow rate at hot temperatures. We have everything you need to keep your engine running smoothly including automotive fluids, automotive filters, oil filters and transmission fluids.