Search results

Changed my trans fluid at 70k recently. I don't see many UOAs of the ZF fluid, so here is one! The truck is used mostly for daily driving purposes in city traffic. I have towed and hauled at near capacity a few times in my time with the truck (bought at 38k miles), so it has been put to work...

Posted this on Ramforum, but I figured here would be good too. Here's my most recent. Another good showing for PP 5W20. I'm sticking with 6-7k miles per change. Went with 5qts of PUP 5w30 and 2qts PP 5w20 this time. Used up some old stock is the reason for mixing.

Very happy with this one. Previous report on this one was to test for coolant in the oil for the common 0331 head problem. Filter was Fram Ultra. 5w30 RGT went in for this change.

I have a lot of short frequent trips on this change. My commute is only 5 minutes each way. I live in an urban area. I did go on a couple of long trips, however. I also did some towing and hauling. I'm impressed with the wear numbers. Filter was a Wix XP.