Red Line 80301 Limited Slip Friction Modifier - 4 Ounce

ENGINEERED - to provide the highest degree of protection and improvement of differential efficiency for better mileage, longer drain intervals, and less wear DIRECTION - Add 1oz at a time to clutch-type limited slip or posi-traction units to eliminate chatter HIGH VISCOSITY-INDEX - to provide relatively constant viscosity and film thickness with varying temperature change, exceed API GL-5 specifications COMPATIBLE WITH - both petroleum and synthetic gear oils WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises