Buy a Filter; Jeep dealer $35 Mercedes Dealer $15.50
Buy 10 Qt low ash oil $6.22 to $9.50 / Qt
Get the Correct wrench for the cap
Get a fumoto valve with an elbow.
Take the filler cap and filter cover off.
Drain the oil
Pull the old filter off the center of the cap
Don’t break the plastic spider
Toss the old filter (Properly dispose of)
Replace the Two O rings and push the new filter all the way on.
Install the valve to make it much easier next time
Close the valve
With a clean rag or suction ball clean the old oil out of the filter canister
Pour part of the first quart of oil into the filter canister.
When the canister is full pour the remainder in the oil filler pipe.
Look under the Jeep for leaks.
Wait until the oil rains out of the canister and,
Pour the next quart into the canister and filler
If you take your time it will take about 40 min to pour 40% of the oil through the filter canister.
Stop at 9 quarts
Install the filter Hand tight plus a little with the wrench.
Install the filler cap
Run the engine. The oil light should go out quickly.
Check for leaks again.
This engine doesn’t like to be over filled.
I check the level and verify that is a Quart low and add another half quart.
I save the other pint for later.
Actualy its a Fumoto Valve.