Product Details: Ensure your truck is Ready for the Road Ahead™ with a smooth running transmission, with the Lucas Oil Products 75W-90 Synthetic Blend Gear Oil. To prevent excessive component shearing and wear, this lubrication oil acts as a padding between the gears of the transmission, differential, and transaxle. Formulated to tolerate high temperatures and keep your engine at its best while reducing the need for gear changes. FleetPride is your First Click in Heavy Duty®.