Re: oil thinning fast
The oil level rising on your ford is a normal condition and is caused by the DPF cleaning process. Extra fuel is needed to clean the DPF, and it is not all burned and ends up in the crankcase. You see this more on short trip trucks because they get locked in regeneration. There is a Federal mandate that the regeneration process has to be completed within 699 miles, or it will lock in regeneration. On short trip trucks, the process will start and not finish, and this cycle goes on beyond 699 miles it locks in and a manual regeneration has to be performed. If a regeneration process has started, and the vehicle is put in park the process will stop and have to be started over.