Extended Protection Full Synthetic Gear Oil is Valvoline's most premium passenger car gear oil. Combining unique FlexFill packaging with superior product engineering, Extended Protection 75W-140 delivers 2.5X better gear wear protection, 2.5X better extreme pressure protection and 60% better protection against towing and heavy loads vs. Valvoline Daily Protection 85W-140 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 your gears have the ultimate protection. DIYers asked for a premium gear oil in an easy-to-use package. Valvoline answered with 75W-140 Extended Protection Full Synthetic, from the #1 gear oil brand.