Posted on 10/31/2025

When it comes to vehicle maintenance, oil changes and tire rotations usually top the list. However, one service that many drivers often overlook is changing the differential fluid. The differential is an essential part of your vehicle’s drivetrain, transferring power from the transmission to the wheels while allowing them to rotate at different speeds. Without it, turning corners smoothly would be impossible. Like every other component, the differential needs proper lubrication to operate efficiently. Neglecting this service can lead to costly repairs, yet it often goes unnoticed because the symptoms of wear build slowly. Here’s why differential fluid changes are so important, and why they’re so often overlooked. What the Differential Does The differential is located between the drive wheels, and its job is to distribute engine power while allowing each wheel to spin independently. For example, when you turn, the inside wheel travels a shorter dist ... read more