Jeep Grand Cherokee Problem Report

Jeep Grand Cherokee Multiple Displacement system must use correct 5W-20 oil

(8 reports)
Vehicles equipped with the multiple displacement system (MDS) must use the correct 5W-20 oil in order to function properly.
05w 30 oil fully synthetic can be used but anything heavier will bring on the P01521 DTC code - now using 05w 30 with no problems -
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