i think your just gonna have to go out and try it. most sender simply change resistance with respect to temp, one end goes to the gauge the other shorts onto the engine.
You can make your own with a thermistor or thermo coupler, (sorry i can't think of the real name of it, ask you electronic store) but you won't have a nice case for it...


 
			
			 
					
				 RA/TA2x oil temp gauge sender..
 RA/TA2x oil temp gauge sender..
				 
					
					
					
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			 Originally Posted by gianttomato about new cars
 Originally Posted by gianttomato about new cars
					
				
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