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This article originally appeared on The Providence Journal: Any problems with the Silverado 3.0 turbo-diesel engines? | Car Doctor If you buy something through a link in this article, we may earn ...
Early in the 1950s scientists discovered that vehicle emissions were a significant factor that had been causing the air quality to deteriorate. [7] This led to the introduction of vehicle emissions standards in California in 1966, furthermore due to the seriousness of the problem, in 1970 the Clean Air Act was introduced in order to regulate these standards all over the United States. [7]
Of the buyback, 138,000 had been completed by 18 February 2017 with 150,000 more to be returned. 52,000 chose to keep their cars. 67,000 diesel cars from model year 2015 were cleared for repairs, but left uncertainty about the future of 325,000 "Generation One" diesel VWs from the 2009–2014 model years, which use the "lean NO x trap" and ...
Specially registered cars made before 1975 and special vehicles may be exempted. Biennially when required Exempt for first seven model years of gasoline vehicles. When outside exemption, vehicles up to 32 years old – biennially, else annually. OBD testing done when newer than 10 years Exempt for first four model years of diesel vehicles.
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German automakers like Volkswagen, BMW and Mercedes, and Japanese automaker Mazda said this week at the North American International Auto Show that they are planning to offer more vehicles that ...
The 2009 Volkswagen Jetta Diesel Sedan was awarded Green Car of the Year.The award was rescinded in early October 2015. On 18 September 2015, the United States Environmental Protection Agency (EPA) said beginning in 2008 the car maker fraudulently installed engine control unit (ECU) software determined to be a "defeat device", in violation of the Clean Air Act, to circumvent environmental ...
Pro: Diesel is also very efficient; even the U.S. Department of Energy says some diesel engines can go 20% to 35% farther on a gallon of fuel than their gasoline-powered counterparts.