2002 Ford F-250 Using oil

Hi there,
if it using oil, it may just be well over due for a service, as the oil breaks down in the engine, it will slowly be consumed, (all engines will use a small amount of oil) but the consumption will increase with the mileage covered, so to start with just do a service and use a high quality diesel engine oil and see how that works.

Mark (mhpautos)