Quote:
Originally Posted by 3BEP6
Hey, guys, did the search but most of the threads are from a few years back. I bought a jug of Optilube XPD and am in the north east, do you guys recommend using it or just stay with no additives like BMW recommends?
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I have used Optilube XPD, their boost formula, Lubro Moly diesel additives and their purge for the past 2 years. I am also in the North East. I am currently using up the gallon of XPD I have. When I dont use any additive (which once a few tanks I'll run straight diesel for a full tank) there are minor differences that I have no way of proving except for a few MPG's lol.
I do suggest swapping out your diesel fuel filter every 4 oil changes (or 20k miles) as per BMW's suggestion though.