I stick the wife's meat thermometer down the radiator fill. Close enough for me. Shoul run up to about thermostat temp then when the stat opens it will cool off some and repeat.


Bruce
Old Toy: Ol' Betsy stock 59 Apache SB Stepside (Gone but not Forgotten)
New Toy: 1962 Impala SS Coupe
The Driver: 1990 Toyota truck