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  Differential Flush Service
  Service Recommended Every 2 years or 30,000 miles
Take Care of your Differential

Gear oil lubricated differentials are found in two-wheel drive and four-wheel drive pick-up trucks and SUV's, as well as in rear wheel drive passenger cars and vans. Although periodic replacement of the gear oil is specified by vehicle manufacturers to maintain the performance and longevity of the differential, this is probably the most commonly overlooked service in personal transportation. With the growing number of pick-up trucks and SUV's on the road, it is important that differential fluid service gets the attention it deserves.

The Problem:
Overextended differential fluid service intervals can:

Lead to gear oil breakdown.
Cause poor differential performance and noise.
Allow excessive wear and corrosion of gears.

  • Especially under severe service driving conditions such as heavy loads, high temperatures and stop-and-go driving.


Contribute to premature differential failure and replacement.

  • A differential assembly can cost as much as $1,500.00.


Your Vehicle Manufacturer Recommends Differential Fluid Changes

As there is often not an easy, convenient and quick method for changing differential fluid, the service is often neglected. Such neglect can contribute to poor differential performance, premature wear, noise and even premature failure. As changing the used fluid in manual transmissions and transfer cases can be a similarly tedious process, these fluid changes are also often neglected, possibly leading to the same kinds of long term problems, including poor performance, premature wear and possible failure.

The Solution:
Complete replacement of the differential fluid.

Replacing the old differential fluid in accordance with manufacturer recommended intervals with Wynn's high performance synthetic gear oil using the state-of-the-art Wynn's DiffServT Differential Fluid Service Machine:

  • Extends differential component life.
  • Provides superior protection especially under extreme conditions.
  • Protects against friction, wear and corrosion.

For safety and the life of your vehicle, make sure a differential fluid service is part of your normal maintenance schedule. With Wynn's, you have over 60 years of auto-care experience ready to help you avoid breakdowns and other expenses.
Many vehicle manufacturers recommend changing differential gear oil as often as15,000 miles to 30,000 miles, or sooner. Manufacturer's recommendations may vary. See your owners manual for your vehicle's requirements.

It's time for Wynn's!