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6.0 PSD oil

3K views 15 replies 12 participants last post by  BigBird 
#1 ·
What oil are you guys running in your ford 6.0L's?
I'm not interested in anything amsoil or royal purple. Thanks!
 
#12 ·
I read up on this same topic a lot on the diesel forums. seems that the popular oil is delo 5w40 syn. I put it in mine with rev x and its been great.. i switched from schaffers which was terrible on cold starts.. before that was rotella 15w40. switching from the rotella to the schaffers I noticed a difference immediately. stay away from the schaffers. the big topic of discussion on the diesel forums what phosphorus in the oil.. some connection between phosphorus content and resistance to inje for spool valve sticktion.
 
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