Where to buy gl 4 gear oil

Pack of 3. Pack of 4. Pack of 5. Pack of 6. Warranty see all. No Warranty. Unspecified Length. GL Rating see all. GL-4 Filter Applied. Condition see all. Please provide a valid price range. Buying Format see all. All Listings. Best Offer. Buy It Now. Classified Ads. Item Location see all. Approvals and standards Performance grades and approvals meet the industry standards and differ among the Valvoline Gear Oil products. For more specific information on O.

Approvals and Performance levels of individual gear oils, please refer to respective sections in the Product Information sheets available on the links below. The application of GL-4 Valvoline gear lubricant provides unmatched protection against target parts deterioration under working conditions characterised by high stress.

The active classifications are:. The viscosity has no relation with the API Gear Oil Classification and should be chosen based on the recommendations from the manufacturer based on the temperatures where you will drive. GL-5 has roughly twice the amount of EP additives compared to GL-4, which is why it is often used in high-pressure circumstances such as in a front axle and rear axle differential. This can be disastrous for the synchromesh rings of a gearbox.

Therefore it is not recommended to use GL-5 in a gearbox unless the manufacturer allows this.