Extended Protection Full Synthetic 75W-90 Gear Oil is Valvoline's best performing passenger car gear oil. Combining unique FlexFill packaging with superior product engineering, Extended Protection delivers 4X better gear wear protection, 4X better extreme pressure protection and 60% better protection against towing and heavy loads vs. Valvoline Daily Protection 75W-90 in ASTM D-7452. So no matter where the road leads, Valvoline Extended Protection Gear Oil is proven to protect gears from wearing out prematurely. Innovative additive technology provides cold temperature fluidity, extreme pressure protection, improved load carrying capacity and high-temperature performance in demanding environments like heavy hauling, towing or off-roading. Add to that excellent oxidation resistance plus limited slip for optimal clutch pack performance and you have the ultimate protection. DIYers asked for a premium gear oil in an easy-to-use package. Valvoline answered with Extended Protection Full Synthetic 75W-90, from the #1 gear oil brand.