nice!
can you tell if it would be just the wires or the whole sensor that would get ripped off if something were to snag the wires?
what kind of sensor is this (thermistor, RTD, TC)? It might be as easy as changing a resistor to change the scale if you really wanted to do, but then the face units would not match. Better to leave it as is. You're right. less than 175 may not matter. As discussed elsewhere, I only see 200 when I'm really working the beast. I was towing a 2500 lbs trailer a week ago and on the freeway it was still only about somewhere between 150-180 IIRC.
For those hesitant to muck with the plug, you can also glue or solder a flat sensor on the pan or on the plug. Or even use a wireless device as in bbq thermometer. Won't be as nice looking as this job though.
here is a chart showing the effect of temp on ATF life expectancy (found at random on web, so no idea if right, but seems consistent with what I've seen elsewhere):
Synthetic Oils Wholesale - Amsoil Dealer - Synthetic Oil, Lubricants Wholesale for Retailers, Commercial and Private Use This and other sources suggest that if you stay under 175 you're golden...
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DD Accord
souped up DR650