Description
High-performance transmissions and differentials demand lubrication engineered for extreme conditions—Lucas Pure Synthetic 75W140 delivers the thermal stability and film strength that separates reliable power delivery from catastrophic failure. Whether you’re running a limited-slip diff under sustained track load or pushing a heavy-duty gearbox to its limits, this synthetic formulation reduces friction, extends bearing life, and quiets drivetrain noise that competitors will notice. This bulk four-gallon set ensures you have reserve supply for multiple fluid changes or fleet maintenance without repeat ordering.
- Synthetic 75W140 viscosity
- Transmission and differential rated
- Four 1-gallon jugs
- Extreme temperature performance
- Enhanced film strength
- Reduced noise output
- Limited-slip compatible
- Heavy-duty and high-performance approved






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