For anyone looking for a dino oil that is still CI4+ rated, this oil is only $13 a gallon and can be found at any John Deere dealer. You ca also get 15% off coupons from the website. I'll be making the switch over this weekend. I am a little stoked to have found this oil.....and just for you "CJ" oil guys, I have no problem with them and know they perform well, but my manual does say that "CI4 oils are best recommended for your engine". So, as long as its available and I can walk in and buy it, then it will be my choice until it becomes an inconvenience to get.