Thanks for the input, I'm sure it wasn't low on oil and the filter was good because since the day I brought it home and drained the oil and found it milky I've changed the oil and filter religiously I'm sure probably way more than needed but I figure better to be safe than sorry. Pulling that drag harrow around is what set the light off and it was warm that day and that was really putting a load on it. I few times I could get out of SL and into "first" but mostly it stayed in LOW and it was pulling HARD. I also change the rear diff fluid about every other time I change the oil. However, there are a few times that I turn the key and the oil temp light DOES NOT come on for the test sequence but after it gets warmed up if you turn it off and back on the light will come on for a few seconds and then go back off like it should. So I would bet that I do have some sort of problem in that circut either a lose connection or bad sensor.