Isn't that the tranny cooler? Are their two coolers down their that I didn't notice, or what?All you have to do is read the bottle. Usually they will say something like "Compatible with all normal oils" and if so, then you are fine. Just try to get out as much of the old stuff as possible. Easiest way to do that on a bull is to disconnect the P/S cooler (long black aluminum tube on the bottom of the radiator in the front) and just let it drain into a pan for an hour or so. Don't turn on the car like that because 1) you get a bath in P/S fluid 2) it's bad for the P/S pump.