2021 RAM 1500 Owners Manual - CHASSIS FLUIDS AND LUBRICANTS



CHASSIS FLUIDS AND LUBRICANTS

Component

Fluid, Lubricant, or Genuine Part

Automatic Transmission

Use only Mopar ZF 8&9 Speed ATF Automatic Transmission Fluid, or equivalent. Failure to use the correct fluid may affect the function or performance of your transmission.

Transfer Case – 48-11 Active On-Demand 2–speed Transfer Case (With 4WD AUTO)

We recommend you use Mobil Fluid LT.

Transfer Case – 48-12 Part Time 2–Speed Transfer Case (Without 4WD AUTO)

We recommend you use Shell Spirax S2 ATF A389.

Front Axle

We recommend you use Mopar GL-5 Synthetic Axle Lubricant SAE 75W-85.

Rear Axle (3.21/3.55)

We recommend you use Mopar Synthetic Gear Lubricant SAE 75W-90 (MS-A0160). Limited-Slip Rear Axles require the addition of 5 oz. (148 ml) Mopar Limited Slip Additive (MS-10111).

Rear Axle (3.92)

We recommend you use Mopar Synthetic Gear Lubricant SAE 75W-140 (MS-8985). Limited-Slip Rear Axles require the addition of 5 oz. (148 ml) Mopar Limited Slip Additive (MS-10111).

Max Tow Rear Axle (3.92)

We recommend You Use Dana SAE 80W90 Axle Lubricant.

Brake Master Cylinder

We recommend you use Mopar DOT 3 Brake Fluid, SAE J1709.


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