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Red Line 75W‑140NS gear oil (quart) is a non‑slip GL‑5 style oil intended for historic and vintage transmissions where friction modifiers are undesired, and for clutch‑type LSDs in racing when maximum lockup is required. It contains extreme pressure additives but lacks slipperiness‑adjusting friction modifiers, is non‑corrosive and safe for traditional synchro materials, and can be blended or mixed to adjust viscosity for noisy or rough‑shifting classic gearboxes.
Red Line 75W140NS Gear Oil - Quart
