Forum Discussion
travelnutz
Feb 01, 2014Explorer II
Have never plugged in any of the 3 GM diesel trucks we've owned. Not even when in the Upper Peninsula of Michigan or in Ontario, Canada on the extremely cold winter nights when snowmobiling up there. Always started right up but when it's -20F or -30F it sure turns over slower for a second or two before it fires up. No biggie but it's obvious. The oil must get very thick even if it is 15-40 diesel engine oil. The batteries don't have as much amperage either and that's part of the difference. Helps to turn on the headlights for a couple minutes before cranking the engine also in extreme cold on both gas and diesel engines. Gets the battery fluid moving and even warms the battery/batteries a little.
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