My RTV with a hundred hours reads around 3/4 to 7/8 of full scale all the time. I pulled the old gaugeout and installed an ISSPRO gauge. Reads 180-190 all the time now.... No more guessing what the factory gauge really means... The sending unit for the ISSPRO gauge fit right in the same threaded hole that the original sending unit was in. </p>
Wayne</p>
Wayne</p>