Royal Purple XPR Extreme Performance Racing Synthetic Motor Oil - 0w10 - 1 Quart (Case of 6) LY23271 4 Liter Vortec V8 /

4 Liter Vortec V8 / 1996-2007 Chevrolet/GMC Trucks with 4

Outlaw bearing

Circle Track Detroit Locker

1977-1981 Pontiac Catalina

8 in 1979-2004

Royal Purple XPR Extreme Performance Racing Synthetic Motor Oil - 0w10 - 1 Quart (Case of 6) LY23271 4 Liter Vortec V8 /Royal Purples XPR (Extreme Performance Racing) synthetic motor oil is specifically formulated for the demands of multi platform racing environments. XPR is popular in a variety of motorsports including: NASCAR, NHRA, World of Outlaws and Bonneville Salt Flats. Royal Purples premium synthetic motor oil and synthetic lubricants have been designed to improve performance in all conditions and provide cleaner operation, better mileage and decreased oil