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Thread: Block Heater
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post #4 of (permalink) Old 01-04-2019, 10:25 AM
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Join Date: Mar 2001
Location: Cody, Wy
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When my pickup was my daily driver I had the heater on a 1500 watt timer. I found even at 10 below, 2-3 hours of heat was enough for easy quick starts. What was your neighbor's reason for no more than 5 hours? Like posted, doesn't hurt a thing.

Heavy truck and diesel mechanic (thankfully retired after 30+ yrs)
'91 F-250 SC 4X4, 5spd. ATS Turbo, 3:55 diff.
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