Mazda MX-5: Miata Power Steering Fluid Flush at 55,000 miles with Mobil 1 Synthetic ATF

The power steering fluid flush job was so easy that Chris let me do it myself after showing me the process using a turkey baster and a bunch of fresh Mobil 1 Synthetic ATF. The idea was to suck out as much of the dirty fluid as possible, and then pour in fresh fluid. Start the car, turn the steering wheel full lock left and right several times. Turn the car off, and suck out the mixed fluid. Repeat the process until the new fluid in the power steering container looks nice and pink. That’s it! This process was exactly the same as what we did with the actual transmission fluid in my car, except instead of 10 QT only one 1 QT was sufficient.

Easy Peasy!









The original power steering fluid looked pretty dark and filthy. the neck of the ps bottle was also covered in grime which suggests that at some point it must have foamed over the top of thru the cap.

Happy to see it nice and clean again. Though to be honest there’s not really much of a noticeable difference in the steering feel before and after. Though I’m happy to say that unlike the oil change / trans fluid flush there’s no negative feel afterwards. Which is great. I’m pretty sure this was the first PS fluid flush in this car’s lifetime, which happens to have happened at almost 55k miles.

Read more about our last oil change here, or the automatic transmission fluid flush here.