Extra Synthetic 4T Oil - 10W40 - 4L synthetic triple ester-based 4-cycle oil, Advanced additive system delivers the in performance with reduced friction and engine temperatures, New reduced friction 0W10 and 5W40 viscosities, Meets or exceeds requirements for API SL and JASO-MA, Designed for high performance applications for all air and water-cooled 4-stroke gasoline engines, Made in the U.S.A.