Our Walmart stocks the Mopar filter for $13. Can be found online as well and picked up at the store.Hi, thank you for your answer. I have another one ! What filters do you use ? Murray welding ? Thank you
Valvoline premium blue is endorsed by Cummins. You can bet a farm out west there's $$$ involved. No engine mfg will tell you which brand to run out of liability concerns. Any 15-40 or 5-40 that meets spec will be fine. The motors come with synthetic because Cummins doesn't know where or at what temperature the motor will be put into service.HAs anyone tried contacting Cummins directly to see what they say? They built the motor and know it better then any dealer. I plan on it before my first oil change.