I really wonder about the need for an Oil temp gauge. Seems the oil temp is what is and looking at it as you go down the road aint going to change it.
Now if you were using it to test different products and thier effect on oil temp that would be one thing.
Would it not make sence to save the cash and time that would be spent installing a gauge and just stick and oil cooler on if you are worried about oil temps?
Just a though nothing aginst them just by time you add up the cost you would have a chunk of you cooler paid for.