i asked this question and got a no. Here´s my theory: if a car is black then it absorbs more heat, therefore the metal on which it is painted will get hotter also. As it gets hotter it will expand (like railway lines requiring a gap between different tracks) and therefore will get heavier (or more dense?), thereby needing more fuel to give it thrust. A white car doesn´t absorb as much heat, so the effect is much less. If this is correct, then admittedly it will only be a small difference in petrol usage...but is it correct or am I just speculating?
2006-12-05
04:35:09
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2 answers
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asked by
john
1