VP 75w90 HI-Perf Gear Oil GL-5 1 Qt - 32oz

VP Racing VP 75W90 HI-Perf Gear Oil GL-5 is a premium synthetic lubricant engineered for high-performance manual transmissions and differentials demanding superior protection under extreme operating conditions. This 1-quart bottle delivers the robust film strength and anti-wear chemistry required in racing applications, off-road duty, and heavily loaded gear systems where conventional mineral oils fall short.

The 75W90 viscosity grade maintains optimal flow in cold starts while sustaining a protective barrier at elevated temperatures, critical for gearboxes that cycle through rapid thermal swings. VP Racing's limited-slip additive package reduces friction between synchronizers and gear teeth, minimizing wear and heat generation during aggressive downshifts and sustained high-load operation. The synthetic formulation resists oxidation and shear breakdown far longer than standard GL-5 oils, translating to extended drain intervals and consistent performance across thousands of hard miles.

This product is formulated for manual gearboxes, limited-slip differentials, and transfer cases in performance vehicles, race cars, trucks used in recovery operations, and machinery subjected to sustained torque loads. The GL-5 spec ensures compatibility with brass synchronizers while the limited-slip chemistry prevents chatter in differentials equipped with friction plates. Serious builders and operators specify VP Racing gear oils when stock lubricants cannot handle the thermal and mechanical demands of modified powertrains or commercial duty cycles.

Each quart bottle delivers a cost-effective way to top off or service a single transmission or differential, making it practical for routine maintenance or emergency replenishment in the field. VP Racing is recognized in motorsports and industrial markets for formulations that prioritize real-world durability over marketing claims.