Well the hours have now gotten to 51 and the little wrench has lighted up so I must now get to work on the 50 hr service. I got started this afternoon with a trip to Advanced Auto, I bought the Rotella Syentic (hope that's spelled right) and all they carry is 5 w 40. I really wanted 10 w 30 like the manual suggests. I don't want to open the worm can, but will this void my warrenty? I really wanted the syn oil because I deliver mail for a living and I use it in my vehicle with out anyproblems. And mail delivery is very tough conditions for an engine, heat, stop and go, idling and the whole bit. I thank you all for your comments on this the last week and they were all taken into consideration when I decided on this oil. As I stated ealier I did not want Kubato Oil because I did not know who makes it for them or if they are consistant with the one who makes it for them. Some Oils I have had bad luck with, Havoline for one and I want to be sure and not use it...........Wish me Luck on this new to me task. /forums/images/graemlins/grin.gif I live in North Mississippi so the 5 w 40 should be good for my climate..teddydo