Quote:
Originally Posted by roscoea26
I've been doing some further research on this issue and it seems to me that the PAS Power steering fluid is a semi-synthetic fluid which was designed for use in Land Rover ACE and power steering systems, it is also suitable for use in power steering systems that require automatic transmission fluids.
Pre 2005 GC models required the use MS-5931 and MS-9462, I've had a look on the Mopar site and Mopar Power Steering Fluid Part 04883077 complies with these specs. From what I gather this fluid is essentially automatic transmission fluid.
When Jeep introduced the 2005 grand the power steering system was changed to a hydraulic system which requires a completely different fluid. Automatic transmission based fluids will not work in a hydraulic system it will destroy the pump because it will not lubricate the pump effectively.
I have sent an email to Penrite questioning the correctness of their power steering fluid recommendation with respect to the WH Grand.
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Okay Just had Penrite tech support on the line for half an hour
They are going to email me back with the findings if their PAS fluid is suitable for WH Jeep power steering
Some of the earlier ratings which are listed on the Penrite bottles might be enough as it is with engine oils
The engine recommended 229.31 but can use 229.51
I now use mineral which is rated 228.1 and 229.1 and the oil consumption problem has completely stopped the engine also sounds less rattly as well using the mineral oil but that's another post