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Old 11-20-2018, 11:55 AM   #11 (permalink)
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2004 CTD - '04 DODGE RAM 2500 SLT
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Originally Posted by JRMichler View Post
I've had my full grille block in for several years. My cooling fan has never turned on, even up an extended slight upgrade at 91 deg F (33 deg C). But the radiator is sized for a larger engine pulling a heavy trailer.
Full winter front (underhood) until daytime highs are exactly 42F.

Partial grill block (exterior) until thermostat opens.

Full grille block (but maybe other openings) is more dependent on very specific factors. Some to vehicle, some to climate.

Engine block heater (anything that shortens time to full oil operating temperature) is a year-round quest. Not perfectly related to the above.

A weatherproof garage is still the best solution to vehicle economy.


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