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The fuel can achieve a 40-80% reduction in greenhouse gas emissions compared to fossil diesel. In addition, Propel Diesel HPR: - Reduces NOx emissions by 14% and particulates (PM 2.5) by 34% compared to petroleum diesel. - Is sulfur-free, aromatics-free and virtually odorless.
Propane: Liquefied Petroleum Gas (LPG). Propane, or liquefied petroleum gas (LPG), is a clean-burning fossil fuel that can be used to power internal combustion engines.LPG-fueled vehicles can produce significantly lower amounts of some harmful emissions and the greenhouse gas carbon dioxide (CO 2).ince propane is stored as a liquid in pressurized fuel tanks rated to 300 psi, LPG conversions consist of installing a separate fuel system if the vehicle will run on both conventional fuel and LPG or a replacement fuel system for LPG-only operation.