Designed for high-output engines, classic muscle cars and racing applications, PennGrade 1® Synthetic Blend SAE 20W-50 is intentionally formulated to provide maximum film strength and high-temperature protection under extreme operating conditions.
Its legendary high-zinc chemistry helps protect bearings, camshafts and other critical engine components when performance matters most. Trusted on the street and at the track, this is The Original Green Oil® built for enthusiasts who push engines to the limit.
