Am I using the right power steering fluid? -
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post #1 of 5 Old 08-07-2021, 01:44 PM Thread Starter
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Am I using the right power steering fluid?

All-I noticed my power steering fluid was down to the minimum line in my 2015 Jeep Grand Cherokee Limited 3.6L. I stopped at the dealer today and the guy in the parts department told me that the bottle he had in stock would be contingent upon my VIN. I gave him my VIN and he handed be a bottle of electronic steering fluid part: 68088485AB. When I got home I double checked to see if he gave me the right one and apparently it doesn't fit my vehicle. I checked the the power steering reservoir cap, and it says to use electro-hydro fluid MS-11655. Now the bottle I picked up today does say MS-11655 on it; so is this the correct one? I can't find any part number specific to a 2015 WK2 limited V.6 (or maybe I'm not looking hard enough). Thanks in advance!

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post #2 of 5 Old 08-07-2021, 04:38 PM
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A recommended power steering fluid should be on the cap to the reservoir. Better yet, buy it from a Jeep dealer (like I did). It's expensive, but is correct for your VIN. Good luck.

'15 Black V-6 Limited
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post #3 of 5 Old 08-07-2021, 05:36 PM
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thanks the right part number, 68088485AB and says MS-90030 on the same bottle, this meets MS-11655 requirements. The bottle will say Electric Steering Pump Fluid.

Check if you have leaks in your steering rack. Mine had a leak and was replaced under warranty. The new one leaked again, but they told me there was a loose fitting and they just tightened it (that was a couple of months ago) and cleaned the rack with degreaser... time will tell if it leaks again.

You can easily spot a leak on the steering rack, it will be very dirty, but it can take several months to years if its a small leak to show itself.

2014 Jeep Grand Cherokee Summit 4x4 3.6L V6.
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post #4 of 5 Old 10-19-2021, 02:29 PM
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I have a 2015 JGC WK2 Summit 5.7L with 58K miles. I need to top up the power steering fluid reservoir. The owners manual says:
Power Steering Reservoir – 3.6L Engine We recommend you use MOPAR® Hydraulic Fluid.

Power Steering Reservoir – 5.7L Engine We recommend you use MOPAR® Power Steering Fluid
+4 or MOPAR® ATF+4® Automatic Transmission Fluid.

So it appears I can use ATF+4 Automatic Transmission Fluid. That appears to be what is in there.

My question is, why are the systems different?
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post #5 of 5 Old 10-19-2021, 03:01 PM
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The pumps and, I think racks, are different, and they use different fluid.
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I just got lost in thought. It was unfamiliar territory;
Current: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6
Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
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