Dealer supplied oil for all but the last one. Did a mid-cycle change over to the Mobil 1 5w-40 ESP for the hot summer months.
Originally Posted by 62Lincoln
Are you using the Castrol from the dealer?
2011 335d Sport Package/Cold Weather Package
2004 Ram Cummins with lots-o-mods
1990 YJ Repowered with modified Cummins B3.3T