Just fyi, if your throttle body is dirty, you are bored and your wife leaves Windex on the floor next to your jeep, strange results will occur. First, cleaned the fender flares as a test. All the deep ground-in dirt was removed. Then I spotted a screw driver and remembered my dirty throttlebody. One old cotton tshirt a few sprays of windex and it was uber clean. Spray it directly on the shirt and wipe the inside of the throttle body was the best method. Runs much better and im pretty sure I get better mpg.