Penn Grade 1 GL-4 Gear Oil SAE 80W-90, 1 Quart (4 Pack)
Multi-purpose GL-4 gear oil designed for synchronizers and soft metals in classic transmissions. Noted for improved gear shifting and smooth operation in older vehicles
Highlights
- designed for yellow metallurgy compatibility
- premium mineral base stocks with select additives
- multi-purpose GL-4 formula
Pros
- suitable for brass, bronze, copper components
- improves gear shifting
- works in older transmissions and Harley gearboxes
Cons
- based on customer anecdotes, not universal performance
- specialized for older/transaxle components
Best For
Features
- Specially blended using high quality mineral base stocks with select additives
- Designed for use with brass, bronze, and copper components in synchronizers and bushings
- Suitable for classic manual transmissions and transaxles; not for limited slip or EP applications
- Does not contain friction modifiers that could affect synchronizer performance
- Package includes 1 Quart per bottle in a 4 Pack
