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Texas Low Emission Diesel standards (TxLED) are rules regulating the quality of diesel fuels, intended to reduce pollutants (especially NOx). Since October 31, 2005, diesel fuel to be consumed by engines in 110 counties in Eastern Texas must meet these requirements: [1] Maximum aromatic hydrocarbon content of 10% by volume. Minimum cetane ...
In the United States, the emission standards for non-road diesel engines are published in the US Code of Federal Regulations, Title 40, Part 89 (40 CFR Part 89). Tier 1–3 Standards were adopted in 1994 and was phased in between 1996 and 2000 for engines over 37 kW (50 hp). In 1998 the regulation included engines under 37 kW and introduced ...
Top Tier Detergent Gasoline and Top Tier Diesel Fuel are performance specifications and trademarks designed and supported by several automakers. [1] BMW , General Motors , Fiat Chrysler Automobiles , Ford , Acura / Honda , Toyota , Volkswagen , Mercedes-Benz , Navistar , Audi , and Volvo support the gasoline standard, while General Motors ...
The cetane number of a fuel is defined by finding a blend of cetane and isocetane with the same ignition delay. Cetane has a cetane number defined to be 100, while isocetane's measured cetane number is 15, replacing the former reference fuel alpha-methylnaphthalene, which was assigned a cetane number of 0.
Due to the higher density, diesel fuel offers a higher volumetric energy density: the density of EN 590 diesel fuel is defined as 0.820 to 0.845 kg/L (6.84 to 7.05 lb/US gal) at 15 °C (59 °F), about 9.0-13.9% more than EN 228 gasoline (petrol)'s 0.720–0.775 kg/L (6.01–6.47 lb/US gal) at 15 °C, which should be put into consideration when ...
In July 2005, Wayne Nastri, Regional Administrator for Region 9 of the EPA, initially proposed the idea of a Diesel Emissions Reduction in the 109th Congress, 1st session. Nastri focuses on the negative health effects that diesel has on the environment. He concludes that diesel fuel, when burned, emits both nitrogen oxides and particulate matters.
In order for NTE standards to apply, the engine needs to remain within the NTE zone (limits include operation at a minimum of 30% of rated power) for at least 30 seconds. Concerns arose that performing this action could prove to be difficult, as each time the driver removes the foot from the accelerator pedal, or shifts gears on vehicles with ...
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