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Old 12-03-2012, 07:09 AM   #3
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Whats said above is true, although with more dense air and more fuel to me would just mean that much more horsepower, so I always figured it was negligible (just my own deduction, I have no facts on that). Coming from a gearbox design background the thing that always gave us the most trouble was any type of bearing or coupled joint. In lower temperatures, they just never seem to warm up enough to have the same efficiency. I've always assumed wheel bearings and CV joints accounted for most of our winter losses.
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