Penn Grade 1 20W-50 Partial Synthetic Racing Oil (12 Pack) with Funnel
Semi-synthetic racing oil with shock load and high-temp protection, reducing internal friction for horsepower. Noted for high zinc content and effectiveness in older engines, including race cars and full builds
Highlights
- semi-synthetic racing oil
- high zinc content (ZDDP) for wear protection
- protects against shock loads and high temps
Pros
- Semi-synthetic formulation
- High temperature protection
- Reduces internal friction
- Contains detergents and anti-wear additives
- Includes zinc (ZDDP) for engine protection
Cons
- Specific benefits noted for older/high-performance engines may vary
- Oil designed for racing/older engines; not general-use engines
Best For
Features
- Semi-synthetic oil formulated for engine protection under shock loads and high temperatures
- Reduces internal friction to support increased horsepower output
- Contains strong detergent and dispersant with ZDDP anti-wear additives for critical parts protection
- Provides cold-temperature operational benefits similar to SAE 20W for higher performance engines
