Catalytic converter problem on trucks and buses.
Ban affects just two busy streets, but it's a first, and others may follow
Nitrous oxide - the preferred go-fast gas of many speed freaks - delivers its substantial power boost by cooling the surrounding air, which in turn becomes denser. The denser air's higher oxygen volume feeds the hungry engine, which can now produce more power. Nitrous oxide is also widely used in the healthcare industry as an anesthetic and analgesic, so you'll find nitrous canisters in hospitals, dentists' offi
By 2010, all diesels sold in the U.S. will have to meet Tier 2 Bin 5 emissions levels, the same standards as their gas-powered counterparts. Even though we're used to talking about diesels as green machines, they still have the issue of nitrous oxide (NOx) emissions with which they need to overcome.
Showing yet another year of strong growth, the specialty-equipment aftermarket parts business grew by 9 percent in 2005 to end up at $34.3B. That's nearly double the size of the market ten years ago, and in each of those years, the auto aftermarket has grown at a faster rate than the US Gross Domestic Product.