Differential Oil Change

Mobile differential oil change at your home or office, with the correct grade and any limited slip additive required.

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Service Info

Typical Duration 1 hour

We drain the differential oil, inspect the magnetic drain plug and the condition of the old fluid, refill to the correct level with the specified grade including limited slip additive where required, renew the plug washers and check the axle breather and seals.

Skip the garage, our master mechanics come to you

At your home or office
Fair & transparent pricing
6-month, 6000km warranty

The Most Trusted Mobile Differential Oil Change

The differential lets your driven wheels turn at different speeds through a corner, and it does that with a crown wheel and pinion carrying the full torque of the engine through a very small contact patch. The oil protecting that contact is under extreme pressure and works hard. Michanic changes differential oil at your home or office, using the correct grade and including the limited slip additive where your axle requires it.

Why Choose Our Mobile Differential Oil Change Services?

  1. Correct Grade and Additive:
    Differentials need an extreme pressure gear oil, and limited slip units need a friction modifier. Without it you get chatter on full lock and accelerated wear.
  2. Magnetic Plug Inspected:
    The drain plug collects metal, and how much is there is the clearest indication of how the crown wheel and pinion are wearing.
  3. Overlooked but Important:
    Differential oil is the fluid most often forgotten entirely, particularly on bakkies and four wheel drives that work hard.
  4. Done Where You Are:
    A straightforward job at your home or office, without a workshop booking.

Why We are the Best Choice for Mobile Differential Oil Change

  • Filled to the Correct Level:
    Differentials fill to a level plug, not a measured quantity. Overfilling forces oil past the seals and onto the brakes.
  • Seals and Breather Checked:
    A blocked breather pressurises the axle and pushes oil out through the seals. It is a common cause of a diff that keeps losing oil.
  • Right Spec for Towing:
    If you tow or carry loads regularly we account for that, because differential oil ages quickly under sustained heat.
  • Clear Findings:
    If the metal on the plug or the noise from the axle suggests wear, you are told plainly.

A differential gives very little warning before it fails, and when it does the failure is usually terminal for the crown wheel and pinion. The oil is working at the highest contact pressures anywhere in the drivetrain, and once its extreme pressure additives are depleted, metal to metal contact begins at the tooth faces. The whine that results is the sound of a set of gears wearing themselves out. On a vehicle that tows or carries load the oil ages far faster, because heat is what consumes those additives.

Frequently Asked Questions

  • How often should differential oil be changed?
    Follow your service book, which commonly specifies somewhere between sixty and one hundred thousand kilometres. Halve that if you tow regularly, carry heavy loads, or drive through water, all of which age the oil much faster.
  • What does a whining differential mean?
    A whine or howl that changes with road speed rather than engine speed usually indicates wear on the crown wheel and pinion or a failing bearing. Fresh oil will not cure it, so the noise needs investigating rather than simply servicing.
  • What is limited slip additive and do I need it?
    It is a friction modifier that allows the clutch packs in a limited slip differential to work smoothly. Without it you get chattering and juddering on full lock turns and the clutch packs wear. Only limited slip units need it.
  • Does differential oil need changing if I never tow?
    Yes, just less urgently. The oil still degrades with heat cycling and time, and the differential is one of the most expensive drivetrain components to repair, which makes a routine oil change very cheap insurance.
  • My differential keeps leaking after a service, why?
    The usual cause is a blocked axle breather, which pressurises the housing and forces oil past the seals. Overfilling does the same thing. Both are checked as part of the job rather than simply replacing the seal.