22500 mile maintenance oil I'm going to do synthetic through the dealership because of warranty issues after that is there anything I should be adding to the synthetic on the down low. Is everybody using the stock Motorcraft fuel filters and oil filters if not what are you using thanks again

 

no. I run Rotella T6. Nothing additional.

 

Get ready to pay some major $$$$. That Ford Motorcraft synthetic is some expensive oil.


Like Senix I've been using T6 now for 100k miles and never added a additive.

 

Rotella T6 since first oil change! 15,000 on it now.......yeah, I know...just getting started!!

 

T6 here as well... I ran FoMoCo for the first change since it was free... Always have done it this way and see no reason to stop.