I replaced the power steering fluid in my Mitsubishi Outlander over the past two weeks with Synthetic Universal Power Steering Fluid (PSF).
Using a hand pump I was able to remove about 150ml of fluid from the reservoir at a time. Then I drove the vehicle for a day to work the new fluid into the system. I did this for 3 bottles of PSF which is ~1.5L since the power steering system capacity is 1L on my Outlander.
It’s not as good as a full flush but does remove most of the old fluid over time and some of the impurities in the system. The advantage is that it’s a lot easier for a home DIY mechanic to do themselves instead of the full flushing procedure which for a 2009 Outlander is basically:
- jacking up the front wheels – to turn them from lock to lock without destroying the tires
- disconnecting the spark plugs
- disconnecting the return hose from the power steering reservoir
- using the starter to cycle the power steering pump to discharge the fluid into a container
- connecting everything again
- filling and bleeding the system
If you notice big chunks of solids in your fluid have the entire system flushed properly. I’ll probably do a full flush next time in two years.
This is the first batch of fluid that came out compared to a fresh bottle. I’m sure the Mitsubishi factory fill probably isn’t the same colour as the new PSF bottle on the left but you can tell it has seen 2 years and 42,000km of use.