I need to change this soon in my '93 Cummins. I bought it used ~ 7 years ago and only put ~800 miles/ year on it. I want to change the power steering fluid but am not exactly sure what kind to use. I appreciate any help.

Thanks,
Jim

 

I just replaced the high pressure hose on mine and I flushed and refilled it using Spirax ATF, same as I used in my A-727 transmission.

Jim

 

ATF works just fine

 

When I did mine I used power steering fluid.

 

I have been using Universal Tractor Transmission/Hydraulic Fluid for years in ALL power-steering systems.

The stuff in the pretty little bottles is just the same stuff in a smaller purpose-labeled bottle.

 

I agree with all the above. ATF, any power steering fluid or hydraulic fluid are all good. You can go to a Dodge dealer and spend many times the price on the specified fluid, or use any of the above and take the wife for a burger on what you save.

 

Great! I was going to do this a while ago but never had time. I have a new, big bottle of Valvoline P.S. fluid I was going to use and it sounds like it's OK.

I appreciate all the replies!

Thanks,
Jim

 

I like the Red Line synthetic PS best myself.

AFAIK, it's the most extreme duty fluid available, within reasonable price.

--Eric

 

I'm not partial to brand so long as the fluid is clear -- which makes it much easier to tell when your entire PS system has been completely flushed. Flushing the system is easy; complete instructions in post 13 of this thread:

https://www.dieseltruckresource.com/...steering+flush