Car Problem Reports
Jeep Grand Cherokee Multiple Displacement system must use correct 5W-20 oil
Jeep Grand Cherokee Problem
Engines Affected: 5.7L V8, 5.7L V8 HEMI
Average Mileage: 77,500 mi (65,000 mi - 90,000 mi)
Visitor, 2005 Jeep Grand Cherokee, 5.7L V8 HEMI, 90,000 mi
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
what is MDS? my06 grand Cherokee 4.7 oil level is sometimes high and sometimes low if I add oil when it is low I check it later and its over full does the MDS have anything to do with this?