Thread: Puzzled over temp sender location

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I guess I'm not alone doing things like that . Good to know your vacuum temps

As far as a thermostat, most of the newer cars have 192* units while the older versions used the 180*. All of this is for good operating conditions. I have to assume that you have a good radiator - and a good 14-16 pound cap. Adding a pressure cap such as that will move the boiling temp up - and quite a lot at that. A 15 pound system adds about 45* to the boiling point, and at sea level or thereabouts, that becomes a 255 - 260*F boiling point - which is why you have to be careful opening the cap on a hot engine - atmospheric pressure allows the water to boil at 212* - ouch. A 160 degree 'stat and the engine temps it allows wont let the fuel atomize well enough - so what you end up with is crappy gas mileage and contaminated oil from unburned fuel washing down the sides of the cylinder walls and condensation that isn't heat driven off from the oil - plus increased wear from all that crud.