Greetings All,

After reading all the posts on this topic I'd say that two hours should be enough to get the engine coolant temp where starting is quite a bit easier than at ambient temps of zero or above. Of course if your temps stay around minus zero temps, I'd add another hour to insure an easy start. So far down to 10 degrees F I've had no problems with a no plug in situation, but I'm sure an hour of heating would bring engine temps to normal at starting. If you choose to use a timer to do your dirty work, please insure you buy the upgraded timer that actually is rated at 20 amps to insure the thing works on a better level. Seems like the cheap ones end up stopping after only a week or so. There's a $4.00 difference between the grades, but it's worth it.


Charles

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"Tell me and I will listen, Teach me and I will learn, Show me and I will accomplish, Involve me and I will succeed."
'84 300SD 256,000 Gold on Brown (Mileage Award)
'86 300E 246,000 Blue on Tan