Its some fleet stuff i can get from a buddy of mine that he uses in his fleet of trucks and loaders and stuff.. its rated CI-4 / CJ-4 and CI-4 Plus or w/e its supposed to be for our trucks.. he gets it by the case.. so i'll buy one or two off of him everynow and then.. its got the 76 Logo on it and i've been running it for awhile.. not really sure where/who he gets it from.. most of it gets delivered to him at his shop, he's got a big well type thing that it pumps out of and then he has cases of it for when he has to add a few quarts to something here and there. i dont ask. I just know he buys enough for 5 work trucks, 3 dump trucks, 4 track loaders, 1 track hoe, 4 back hoe's, 2 rollers, and 2 skid steers. so he's got a boat load of it and it works great.. no issues with it.
I found it online too you can order a case of it..
Conoco Fleet Supreme EÇ 15w40 Case (12-1 quarts)