I have some troubles with the oil change light, or with the sensor (there is one?) or with something regarding that in my 2006 EX - Eddie B ... it could be troubles with the engine oil ? I don't know. The only thing I know is the following: - I buyed my EX in April 2006.. the first 5,000 miles the indicator was like: - 0 Miles - 100% oil life, after around 2,500 Miles - around 50 % oil life near 5,000 miles it shows 0 % and "oil change required" this was on September. I went to dealer for the 5,000 miles first service, they replaced filter and the original oil (5w20) with 5w30 -motorcraft ford specific. I traveled just around other 2,500 miles up today and I have been advised 3 times that I need to change the oil and I reset it to 100% each time. Today the light come on again Before return to the dealer I want to know if someone of you have seen the same thing.. and if someone knows how this indicator work? what normally trigger it? the miles traveled? the oil viscosity? time? all? thanks in advance for your comments.