Product Details: Outfit your truck to be Ready for the Road Ahead™ with a smooth running transmission, with the Lucas Oil Products 75W-90 Synthetic Blend Gear Oil. Thanks to its viscous body, this lubricating oil allows the components of the transmission, differential, and transaxle to gently glide across one another without shearing or wearing down. Crafted to tolerate high temperatures and keep your engine at its best while reducing the need to change or replace gears. FleetPride is your First Click in Heavy Duty®.