Pennzoil Platinum™ Axle SAE 75W90 combines a premium performance gear oil additive package with a high quality synthetic base stock. The result is a gear oil that provides excellent low temperature fluidity for safe lubrication during very low temperature axle and transmission start up and also maintains a thick protective oil film during extremely hot operating conditions. Pennzoil Platinum™ Axle SAE 75W90 is formulated with all the performance additives necessary for outstanding protection of gears and bearings. It contains extreme pressure agents which protect against shock loading and wear. Foam inhibitors protect against oil aeration, which can rupture the lubricant film and cause wear due to lack of lubrication. Special rust inhibitors are incorporated into Pennzoil Platinum™ Axle SAE 75W90 to protect against corrosion that can result from condensation. Oxidation inhibitors are included to further enhance this synthetic oil’s inherent oxidation stability, resulting in a lubricant with exceptionally long service life and excellent resistance to deposit and sludge formation during high temperature operation. Pennzoil Platinum™ Axle SAE 75W90 is designed primarily for the lubrication of differentials and manual transmissions requiring a API GL-5 gear lubricant.