Had my fluids changed in both the Engine and Trans today. I told them to use 15w 40 Rotella, but all that was specified on the bill was synthetic oil. I should have double checked. I did make sure to get a new trans filter. Not a fan of flushing and reusing the old one. Milage this time out was 69,000 and change. Trans should be happy for a bit. It was fine before, but I like fresh fluid in there now and then. Next up is transfer case, front diff and rear end fluids.