Bel Ray Works Thumper Racing Full Synthetic Ester 4T Engine Oil

A fully synthetic ester base oil developed for full works competition use and designed to withstand extreme racing conditions while meeting API SM and JASO MA2 requirements. Withstands the highest temperatures and stresses and provides the ultimate 4-stroke Thumper engine oil. Suitable for air-cooled/liquid-cooled 4-stroke engines and wet clutches.