Join Date: Apr 2011
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I plug my truck in quite regularly...but.. i dont use just my block heater. I found as well that the block heater really didn't do much to warm the engine up in a reasonable amount of time. I use a pan heater for my engine oil. Considering that the HEUI system runs off engine oil, and our injectors especially dont like cold thick oil I figured warm oil would be much better for them as well as all the other moving parts, not to mention warm oil in the sump will radiate heat up through the engine.
As a result my cold starts are great. I set my timer to come on 2-3hrs before I'm heading out and both my engine oil and coolent will be up around 120-130degrees. Temperature dipped to about -10, -15C here a couple times this winter and I would see ~110degrees. Ocasionally I travel to colder areas, where we get real winter and for that I have a pan heater on my transmission as well.
IMO warm oil/coolent is the best thing you can do for any moving parts on a cold start be it your engine, transmission, etc, heck i've seen heaters on big differentials before(up north of course). If I ever have the cash kicking around or can come across the parts I'll install a diesel fired heater (pro-heat, esbar, or the likes)