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I just bought a used 2015 F-350. It really is a clean truck. but I bought it in Virginia and drove it home to Georgia, roughly 700 miles.
The "oil life" stayed at 100% the whole time. This seems highly unlikely to me. What part do you think is broken or how do I go about fixing it? Thank you.
Are you looking at the right screen ? If you let it cycle thru the different values (top button I think), it will show oil life. If you go to the reset function, it will show 100%.
This is on the basic info screen, not the fancy colored ones.
The 6.7L diesel has a sensor that detects dirty oil. You can reset the reminder, but it will come back if the oil is dirty and needs to be replaced.
Change the oil at recommended intervals or wait for the sensor to tell you when it is dirty. I like to change it at about 5-7k miles. I also (ONLY) use Motorcraft oil and filter.
Motorcraft oil is specially designed for their engines.
The 6.7L diesel has a sensor that detects dirty oil. You can reset the reminder, but it will come back if the oil is dirty and needs to be replaced.
Change the oil at recommended intervals or wait for the sensor to tell you when it is dirty. I like to change it at about 5-7k miles. I also (ONLY) use Motorcraft oil and filter.
Motorcraft oil is specially designed for their engines.
As far as I know the 6.7 uses an algorithm, and not an actual sensor that 'sees' dirty oil. It's more advanced than most systems that simple count rpm's or hours. It also takes temperatures and driving style into account among others.
Motorcraft oil is not 'specially designed' It meets spec but so do many other brands which are just as good or better.
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