Red Line Gear Oil Synthetic Heavy Shockproof 1 Quart (58204)

Red Line Heavy ShockProof is the most popular ShockProof gear oil in the lineup, a synthetic extreme-pressure lubricant trusted by NHRA Top Fuel and Funny Car teams, Sprint and Midget racers, Dirt Late Models, Quick Change differentials, and Detroit Lockers. Film thickness greater than an SAE 75W250, with the low fluid friction of a 75W90.

Part Number: 58204

• Film thickness exceeding SAE 75W250 for maximum protection under shock loads
• Low fluid friction comparable to 75W90 for reduced operating temperatures
• Full-synthetic polyol ester base stocks for extreme condition performance
• High viscosity index for consistent film thickness across temperatures
• Exceeds API GL-5 specifications
• Not recommended for most synchromesh applications