Filter House - "KNOW ABOUT OIL GRADE" What does 10w40 mean? The purpose for which it is intended (i.e. Motor oil, Gear oil etc). The viscosity (i.e. 10w40, 5w30 etc for Motor
What is the meaning of SAE 10W-40? I need to know the exact meaning of 10 and 40. What is the temperature range and how is it selected? - Quora
Maxima Racing Oils #39-34901B Semi-Syn - 1qt/946ml, 10W-40 - MaximaUsa.com