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Differential Additive

Drivetrain

Improves differential gear oil film strength and reduces friction to protect gears and bearings from wear and noise.

Differential Additive is a chemical enhancer poured into the rear or front differential to improve the protective properties of the gear oil. It reduces friction, dampens noise, and helps prevent gear and bearing wear in the differential. This additive can extend the life of differential components and is often used during routine maintenance or when differential whining is noticed.

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Typical part cost
$8–$18🔒
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Typical labor cost
$0–$0🔒
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DIY difficulty
2/10

⚠️ Owners Often Notice

If the Differential Additive is starting to fail, these are the signs owners most commonly report before it gets worse:

Whining noise from rear differential
Grinding noise from differential
Visible differential oil leakage

Related Services

Services commonly performed on or around this part.

Add Differential Additive

No standard interval on file