Quote:
Originally Posted by Arcticthaw
Your cold start at - 20 below produces more polution than mine plugged in and warmed up for several minutes.
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Hmmmm, a believer in hypotheses, eh, Arctic?
Your 'supposition' is naught but a starting point to explore beliefs based on theoretical factors.
Do all cars perform according to the 'study' you cite?
Does the study factor in all possible real world variables?
After testing all the variables, does the hypothetical situation 'tested' match real world practice?
Are the popular beliefs commonly applied to situations which do not match the 'test' situations, (or is the 'borough web site'), always true?
Nope, not always true, too many variables not accounted for in the hypothesis.......
An idling car produces twice the emissions of a vehicle immediately after 'cold start'.
...if your electricity consumed did not add to air pollution, then one might have a better case if you did not allow your car to idle after being plugged in. But here in Alaska where your electricity consumption adds to air pollution, that's a trade off, that variable is not factored in.
Has one quantified the addition of emissions using electricity, then added the emissions produced by letting one's car idle for longer than is necessary, or should one just go start the car and drive off.
My cold start and quickly driving off, emits less pollution than the typical vehicle which is plugged in, and then allowed to idle for an extended time to 'warm up' the car.
The components in question are the emissions control equipment which your automobile is equipped with.
Emissions control systems are more efficient at higher operating temperatures.
Key, is whether your emissions control systems are operating within the highest possible efficiency limits, is that efficient range of operation reached more quickly in one practice as opposed to another.
That high temperature operating range is reached on my vehicle well before a typical plugged in car, which is typically then started, and allowed to sit at idle for extended time before it is ever driven.
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For some Fairbanks specific, in depth, discussion of the science behind popular theory, compared to real world realities of cold start emissions, you might wish to read a report by the National Research Council:
"Committee on Carbon Monoxide Episodes in Meteorological and Topographical Problem Areas; Board on Environmental Studies and Toxicology; Board on Atmospheric Sciences and Climate; Division on Earth and Life Sciences; Transportation Research Board."
For some quick facts which counter baseless popular myths, read this:
Idling Myths & Facts (broken link)
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Hey wait, I AM the autostart...
Actually, we do technically have one in the jeep but it doesn't work. We don't drive the big truck for just around town anymore since the jeep is so much more manuverable, but on a recent trip to Whitehorse the Cummins started right up at negative twenty F with no preheat. For a town with so much cold weather, how can they have so few plug-ins that actually work?
The only ones downtown that haven't been creamed by the snowplows all had employees cars hooked up to them, none left for visitors.
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