After work oil change on friends 09’ Jeep Grand Cherokee 3.7? 4WD.
OUT: ProTec filter and unknown
In: “oil salad” swill of TOTAL 10w60, 1quart and 2 quarts FRAM 0w40, 2 quarts edge EP 0w20 and 1 quart M1 0w40 SM
Filter that went on was ancient WIX from 2017