Changing the Front and Rear Differential Fluid

Although it is often an overlooked service point it is still very important to change the oil in your rear differential. Most makes and models that have rear wheel drive require you to change out the oil and if you feel it is time then make sure you have the necessary tools to do the job.

Note: Most cars with a front differential usually don’t require you to change out the oil since it shares it with the transmission. However if you’re unsure then see the mechanics at 2J’s Automotive to confirm what needs to be done.

When you’re ready to get to work on your car then go through a quick checklist to make sure you have all the right tools:

  • A standard metric socket set
  • 1 oil pan
  • Gasket scraper
  • 4x jack stands
  • Floor jack
  • Torque wrench (optional)
  • Recommend oil for your make and model

(You may need to refer to your owner’s manual to find the recommended oil to use. )

What Does Your Rear Differential Look Like?

With all the proper tools in place it’s time to get under the car and refill your rear differential fluid. It’s important to make sure your car is jacked on a level plane. Since there is no dipstick for the differential you have to keep it level because the exact fill level is dead even with where the fill plug screws into. Therefore, having it on an uneven plane can cause you to fill it with the wrong amount of oil rendering your efforts useless.

Continue filling with oil until you notice it start to drip out where the fill plug screws in and once that happens you know you have filled the differential with the proper amount.

If you don’t have access to some of these tools or are afraid of damaging your car then bring it in to 2J’s Automotive and let them perform the job for you. While you’re at it you can get a free diagnostic test to make sure there is nothing else wrong with your car.

2J’s Automotive wants to make sure you stay safe on the road so send us an email if this helped or if you have any questions.

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