C3 Corvette 327-350, 454 (1968-1982) - HR2 10W-30 Conventional Oil Change Kit | C3HR5K Performante and the bottle features a

and the bottle features a handy view strip to let users measure out doses for as little as five gallons of gas

Ideal for LS-based crate engines and supercharged LS performance engines as well as any performance engine that calls for a 5W-30 viscosity

s High Zinc (ZDDP) additive technology

GP-1 Gear oils are formulated for High Performance & Racing applications only

Viscosity typical of 15W-40

C3 Corvette 327-350, 454 (1968-1982) - HR2 10W-30 Conventional Oil Change Kit | C3HR5K Performante and the bottle features aClassic third gen powerplants like the 327, 350, and 454 thrive on HR2 Conventional Oil. This kit provides reliable lubrication and high zinc wear protection tailored to flat tappet valvetrains. Highlights: Designed for 1968 1982 Corvettes ZDDP chemistry protects camshafts and lifters Prevents dry starts in cars stored seasonally Traditional conventional oil for originality