All I know is when I crabbed more into the wind the oil temp came down
I don't doubt what you observed. I'm saying you don't need to fly an Enstrom out of trim in order to prevent high oil temperatures. I think you have a problem with the oil cooler that needs to be looked into.
BTW, Ascend Charlie: I loved flying the F28A. I think easier to touch-down than even the B206 (because of high inertia AND the oleos). Just not a very happy helicopter when sliding, but with that much inertia there's really not much reason to ever have to slide, even on a calm wind day.
The F28A was really underpowered (no hover on a hot summer calm day @ higher gross weights) but basically the best pickup truck I've ever hovered. (i.e. built like a tank, and weighs like one too!).