Sport Transmission Oil GL4, GL5

Sport Transmission Oil GL4, GL5 (80w90):  the ultimate, high performance semi-synthetic GL4/GL5 gear oil. All our other Classic gear oils are mineral oils. It is suitable for high performance and tuned classics, or wherever the user wants a superior product to a mineral gear oil.  As it is both GL4 and GL5 it can be used in gearboxes, overdrives and differentials.

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