Quote:
Originally Posted by mario486
But how much difference does it actually make? Difficult to quantify I suppose because it depends on how long you are standing still for.
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To some extent it's irrelevant. Emission levels generate a tax levy in many countries (such as France). The lower the better. If switching the engine off on any cycle lowers the emission-tax band, all the better.
Having said that, I must admit that although not a "green" person, I pay attention to a car emission level, andnot only for tax-avoidance purposes...