In the differential
No, use ATF only.
Remove the plug in the center of the cover. Fluid level should be even with the bottom of the hole.
At 18000 miles if towing
Ceck out "what type of automatic transmission fluid is needed for a 1993 Jeep Cherokee sport and in the front and rear differential" on wiki-answers
On my 2002 Grand Cherokee the transmission dipstick is on the left side of the engine (facing the engine) near the firewall. The front differential has a 3/8 socket plug. The rear differential has a rubber plug that can be popped out with a screwdriver. The center differential has a 10mm Allen plug. For each differential the fluid should be just below the plug opening.
"square" Cherokee- Dextron. Grand Cherokee- Mopar ATF+4 All axles 75w90 or 80w90, if posi the rear requires friction additive.
Differential oil will work fine dude or even gear box oil.dude
A 2005 Jeep Grand Cherokee uses DOT 3 fluid.
You remove the differential cover to drain fluid. Reseal it with RTV, and fill with 80w90 to the bottom of the fill hole.You remove the differential cover to drain fluid. Reseal it with RTV, and fill with 80w90 to the bottom of the fill hole.
I own a 2006 3.7L grand Cherokee and my tune up consists of spark pug replacements (6) for me, differential fluid change, ATF fluid change (no flush), and PCV. If you have a transfer case you will need to change that as well. good luck!
75W140 is the recommended axle fluid.
Approx 1 - 2 quarts