Quote:
Originally Posted by MetroMPG
Use of a block / coolant heater would help some in a vehicle that does short trips, even in warm ambient temperatures. Of course that only helps with coolant temp. Efficiency is still going to suffer from other cold drivetrain components like the transmission, tires, etc.
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I thought Diesel_Dave was heating up the transmission pan, oil pan and coolant before he started his truck (With pad heaters?) though. It helped him.