Yes, it makes a big difference to heating up an engine. In fact I had to roll the cardboard down some on the Merc when I took it out for the first snow drive in early November. Heat gauge was higher than I saw it in the heat of July.So, does a winter grill cover do an effective job of increasing the engine operating temperture? Is it necessary if thermostats are installed?
Denny, That pic was taken January 1961 in Westborough, MA. Roadster was entered in show in Boston and driven back but not put in garage. Weather forecasting was not very good back then, hence the reason I live in Florida. By the way it was 36 degrees here this morning.
So, does a winter grill cover do an effective job of increasing the engine operating temperture? Is it necessary if thermostats are installed?
Always thought that "wind chill factor" applies to the effects on human skin.When you calculate the wind chill factor on a cold winter day the coolant in the radiator can freeze. I have had that happen, could not figure out why the heater was blowing cold air.