I am a new member from WV and was hoping to get some help only 2013 Grand Cherokee Laredo. The dealer mentioned that my 47k Mike Jeep was past due for its diff service and offered to do it do it for $600. I told them no thanks
However, in order to keep the extended warranty I guess I should change it and am very comfortable doing it myself (I am pretty handy with cars) and was hoping to get some info from you guys to do it right. Here are my questions:
1) the correct oil is 75-85 synthetic for both front and rear?
2) is there an aftermarket alternative to the Mopar stuff (ex. pennzoil)?
3) do I need the friction modifier?
My Jeep is a 2013 base 4x4 Laredo - not a select track or anything.
Any help is very much appreciated.