1996 Ford Explorer Owner's Manual - Page 107

An oil change is required whenever indicated by the M/C. USE ONLY RECOMMENDED ENGINE OILS (See Engine oil in the Index). The M/C will tell you the percent of oil life left during System Check. This percentage is based on your driving history and the time since your last oil change. In order to ensure accurate oil life left indications, you should only perform the following OIL CHANGE RESET Procedure after you have the oil changed. Oil Change Reset A press of the OIL CHANGE RESET switch will allow you to reset the oil life feature to 100% (or your Personalized Oil Reset Percentage). After you have the oil changed, you must execute the following procedure. Press the OIL CHANGE RESET switch and hold for five seconds as the M/C counts down for five seconds. After a successful reset the Message Center will display "OIL LIFE RESET TO 100%." If you have established a Personalized Oil Reset Percentage, the display will show that percentage instead of 100%. To ensure accurate oil life indicators, perform this reset procedure only after an oil change. Your Personalized Oil Reset Percentage allows you to establish a smaller oil change interval than the manufacturer's recommended interval. To establish your Personalized Oil Reset Percentage perform the following procedure: 1. Press and hold the OIL CHANGE RESET switch and press the RESET switch while the display is still counting down the 5 seconds to reset. The display will change to "START OIL LIFE AT XXX%." 2. Press the OIL CHANGE RESET switch until the displayed percentage is the Personalized Oil Reset Percentage that you desire. Your choices are 100%, 90%, 80%, 70%, 60%, 50%, 40% and 30%. 106