Posts Tagged: drivetrain maintenance

Differential Fluid Explained: The Key to Long Drivetrain Life

What Differential Fluid Does Inside Your Vehicle Quick Summary Differential fluid is one of the most overlooked maintenance items I see, yet it’s critical to drivetrain survival. Differential fluid—often called gear oil—lubricates gears, bearings, and clutch packs inside the differential. It prevents metal-to-metal contact, reduces heat, and ensures smooth power delivery to the wheels. Depending on driving conditions and the type of gear oil used, it should typically be changed every 30,000 to 60,000 miles. Ignore it, and you risk noisy gears, overheating, premature wear, and eventually a very expensive … Read More