I've been lurking here for a bit and finally have a question to post. I just ordered a John Deere D130 because I'm sick of cutting the hill in my yard with a push mower. I was looking at the price of JD branded filters and oil and I'm amazed at how expensive they are. I've looked around at filter websites and I can't find anything that is listed as going with this model. Does anybody know what filters will work with it and meet the appropriate specs? Also, it takes two quarts of 10w30, and I noticed the JD 10w30 is SM GF-4, is this a heavy duty oil? Or can I use a PCMO in it? I have a stash of 10w30 Nextgen, 5w30 Nextgen, and 5w30 G-oil, so I would prefer to use these if appropriate. If not, then I will probably go with Rotella T5, since it is a pretty good price. What do you guys think?