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Well-Known Member
I installed the Honda block heater when it was less than a month old... comin' up on 16 years. One of the best things I've done for the car, and not a very bad install.
If I know it's going to drop to 10* or lower I plug it in before bed. But so that it doesn't suck electricity all night, I have it on a timer set to come on ~3 hours before I'll drive it.
It serves three purposes. Because it's basically the same as starting it on a warm day, the oil is up in the cylinders a lot faster than a stone cold engine at zero degrees, so there's less internal wear. Also, it's obviously easier on the battery. Plus, there's heat coming out of the heater in just a few blocks instead of several miles.
Do it!
If I know it's going to drop to 10* or lower I plug it in before bed. But so that it doesn't suck electricity all night, I have it on a timer set to come on ~3 hours before I'll drive it.
It serves three purposes. Because it's basically the same as starting it on a warm day, the oil is up in the cylinders a lot faster than a stone cold engine at zero degrees, so there's less internal wear. Also, it's obviously easier on the battery. Plus, there's heat coming out of the heater in just a few blocks instead of several miles.
Do it!