Oils, Fluids and Sealer› Oils, Fluids and Additives
Royal Purple
75W90 Max Gear Oil Case
SKU: 831-06300
Description
This gear oil makes gears run smoother, quieter, cooler, and longer without overhauls. A direct reduction of drag in the drive train offers a significant advantage for trucks and other 4-wheel drive vehicles. The formula is pre-mixed with a friction modifier additive, meaning no additional additives are necessary.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Royal Purple |
| Part Number | 831-06300 |
| Category | Oils, Fluids and Sealer |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy