Quote:
Originally Posted by 8cd03gro
co2 and water vapor? In an absolutely perfect world. In the real world there are far more products of combustion than those two when it comes to gasoline. The combustion is not clean nor is it a total burn. You get nitrogen oxides, hydrocarbons that aren't burned, sulfur oxides from impurities and you even get ozone from NO2 releasing an oxygen atom and it bonding with an o2 molecule. There are plenty of dangerous, carcinogenic products from an internal combustion engine of any kind.
I think certain aspects of this article are very accurate. Our future is plagued with huge taxes and costs associated with running a gasoline powered vehicle. I don't think anyone but tree-huggers will look at you with disgust, but cost-wise it's going to be terrible.
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Most tailpipe emissions, other than the products of combustion, have been drastically reduced over the last ~40 years. No, they have not been eliminated but in some cases (like SULEV cars in downtown LA) the emissions control units make the exhaust theoretically cleaner than the air in the intake. Thats about as good as you can ever expect.