Shell Spirax S6 AXME 75W-140 is a unique fuel-efficient, long life transmission and axle oil, designed to provide ultimate protection to the latest heavy duty manual transmissions and axles. Specially formulated with synthetic base oils and additive technology unique for Shell, gives improved lubrication of the drive train, lowers the operating temperature and helps promote longer life for the equipment. Spirax S6 AXME 75W-140 is also extended oil drain capable and is approved by several OEMs for their extended drain specifications.