Cummins12V98 wrote:
Me Again wrote:
Cummins12V98 wrote:
Actually 75/110 as recommended by AMZ/OIL, RAM recommends 75/90.
Everything looked good in the rear diff. Chris
Yes it did! I can say with certainty it will go another 15K! :B
Interesting that Amsoil recommends 75/110. I just changed mine on Saturday and put in Amsoil 75/90 as per the Ram manual.
Mine looked really good too, but the oil was due for a change. It was noticeably dark and there was quite a bit of dark residue when wiping out the pumpkin. I was having a "grabbing" feeling before the change, especially when towing. I took the truck for a good highway/city drive yesterday and it seems to be better. I'll see for sure the next time I tow.
On a side note I was really impressed with the Amsoil product; it's pricey but well worth it IMO.
