Has anyone done any reserch on this stuff? I just bought some to add some to my 4240. Well, I bought a gallon for 23.00 its 10w30, and far cheaper than joe gibbs, the comp cams stuff is 5.25 a qt, and you have to ship it inn from summit, or someone. Im going to try this stuff on the 440 I have. John deere recomends 50-100 hrs on this oil depending on how hard the tractor is being used, and since mine is basically a loader tractor for moving bales, im going 100 hrs. It seems like decent stuff, has a lot of zink inn it, and it says right on the back "may be used to break in any rebuilt engine"

Has anyone on here used it? If it works on a my 140hp, 789 lb ft turbocharged diesel, then it should work in any race engine, or street engine I would think.

Kasey