dannylink said:thanks to all who responded. you all convinced this new guy. I will use the Kubota filter from now on. did not relize there were so many opinions on this subject. Is it still OK to use the Pennzoil brand diesel oil (15W40)?? Not sure I should ask this ?
I would'nt say that the kubota filter is a requirement, but certainly the best "peice of mind" option. I have seen alot of oil filters in my days. As far as I am concerned, Wix makes the best oil filters you can buy. So if you want to be able to get the filter for a little less money, get Wix. I would be very surprised if the Kubota filters are not manufactured by Wix.
As far as the oil goes, I would use Rotella. But, there are alot of high quality oils available for diesel engines. I would imagine that the pennzoil will be perfectly fine.