I kinda wanna switch from the regular rotella oil i use to a full synthetic. Do i just drain and fill? What about the hpop oil? To change that you cant get it all out and ford says pump out what you can refill start up for 5 min, pump out refill and start fro 5 min they say do that 3-4 times. Do i have to do that but just refill with synthetic?

 

If you have the extra few minutes and extra 2-3 quarts synthetic oil, you can do the HPOP procedure. Otherwise, if not I wouldn't think it would cause any issues just doing the standard oil and filter change.

 

I was told the hpop oil recurculates with the regular oil is that tru? i find it hard to beleive

 

I am not 100% sure, but in theory it is supposed to. Others may be able to shed some light as well.

 

hopefully thx

 

there is a low pressure oil pump that pumps engine oil up to the high pressure oil pump that feeds your injectors.

---AutoMerged DoublePost---

when i went to rotella synthetic i just changed it like it was regular oil but i only drove half the distance about 1750 miles then i changed it again and then at normal intervals

 

i was thinking of doing that to. Did you nitice a difference with synthetic?

 

not really, in cold weather truck seemed to fire faster and easier i havent really put enough miles on it with synthetic yet to really notice an improvement fuel mileage or anything