2008 Ford Super Duty F-350

[Michael Pliska]

Originally Posted by Z28-69

Question for the guys who understand how diesels work? Ford is trying to say this is an oil related problem. How does oil affect what happened to this motor?

I don't see how an oil change interval could have caused the problems you are describing. I also suspect that the turbo damage was caused by diluted oil rather than the oil level.

I wonder if they are getting confused (or intentionally recycling an old standard excuse) since injector problems could be caused by oil change intervals on the 7.3L and 6.0L. Both of those engines used HEUI injectors, which use highly-pressurized engine oil inside the injectors to depress the piston. The 6.4L uses a common rail system, which uses a very high pressure pump to directly pressurize the diesel (lubricating oil has nothing to do with the injectors).

Regards,