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Gasoline cars can be retrofitted to CNG and become bifuel Natural gas vehicles (NGVs) as the gasoline tank is kept. The driver can switch between CNG and gasoline during operation. Natural gas vehicles (NGVs) are popular in regions or countries where natural gas is abundant.
A Diesel engine is a compression ignition engine and does not have a spark plug. To operate a diesel engine with an alternate combustible fuel source such as natural gas, a Dual-Fuel system used with natural gas as the main fuel while diesel fuel is used for the ignition of the gas/air mixture inside the cylinder. In other words, a portion of ...
A natural gas vehicle (NGV) utilizes compressed natural gas (CNG) or liquefied natural gas (LNG) as an alternative fuel source. Distinguished from autogas vehicles fueled by liquefied petroleum gas (LPG), NGVs rely on methane combustion, resulting in cleaner emissions due to the removal of contaminants from the natural gas source.
The Beacon and Shamrock brands are used by retailers as a low-cost alternative to the premium Valero brand. The Shamrock brand is based on the former Shamrock Oil and Gas Company, which merged with Diamond Alkali in 1967 to form Diamond Shamrock, thus declaring the trademark from official abandonment. The name Ultramar, while being eliminated ...
The following year Shamrock showed its first, albeit small, profit. During 1939-1940 Lone Star and Shamrock cooperated on the construction of a plant at Murchison in Henderson County whose aim was to recycle natural gas. In 1943, the company paid its first dividend, and by 1944 the company was listed on the NYSE.
Currently, the majority of motor vehicles worldwide are propelled by internal combustion engines powered by petroleum-based fossil fuels such as gasoline, diesel or autogas. Other fuel types include ethanol , biodiesel , biogasoline , propane , compressed natural gas (CNG) and hydrogen (either using fuel cells or hydrogen combustion ).
California was the first state to adopt the Advanced Clean Cars II rule, and so far, 11 other states have followed suit, setting their sights on phasing out the sale of new gas-powered vehicles by ...
Because natural gas emits less smog-forming pollutants than other fossil fuels when combusted, cleaner air has been measured in urban localities switching to natural gas vehicles. [64] Tailpipe CO 2 can be reduced by 15–25% compared to gasoline, diesel. [65] The greatest reductions occur in medium and heavy duty, light duty and refuse truck ...