2000 Jeep Cherokee 4.0L with 136,000 miles
This Jeep has the AW4 automatic transmission with an aftermarket B&M trans fluid cooler. I recently did a few drain and fills using Coastal Dex/Merc compatible fluid, which is what this transmission requires. The fluid is now nice and pink. A typical drain and fill on this transmission exchanges about 1/3 of the fluid. Since I have done a few drain and fills until the color was pink, I expect to do 1 drain and fill of the fluid from now on in certain intervals.
How often should I drain and fill the fluid?
This Jeep tows a small trailer a few times a year with a light load. It is daily driven easily and never abused. I drive back and forth to college 15 miles a day, a few more miles on weekends with the occasional highway drive.
This Jeep has the AW4 automatic transmission with an aftermarket B&M trans fluid cooler. I recently did a few drain and fills using Coastal Dex/Merc compatible fluid, which is what this transmission requires. The fluid is now nice and pink. A typical drain and fill on this transmission exchanges about 1/3 of the fluid. Since I have done a few drain and fills until the color was pink, I expect to do 1 drain and fill of the fluid from now on in certain intervals.
How often should I drain and fill the fluid?
This Jeep tows a small trailer a few times a year with a light load. It is daily driven easily and never abused. I drive back and forth to college 15 miles a day, a few more miles on weekends with the occasional highway drive.