What is a converted or conversion vehicle?
When an original equipment manufacturer (OEM) vehicle that was originally designed to run off conventional gasoline is altered aftermarket to run on alternative fuel or a combination of gasoline and alternative fuel, the vehicle is considered a conversion vehicle. It can also be referred to as retrofitting or a retrofitted vehicle. The most common conversion are altering vehicles to run on compressed natural gas (CNG) and liquefied petroleum gas (LPG). There are essentially three types of conversions: dedicated, dual-fuel and bi-fuel. Dedicated operates exclusively on the alternative fuel. Dual-fuel has separate fuel tanks for the gasoline and alternative fuel and the desired fuel is accessed by flipping a switch to select tanks. Bi-fuels utilize both fuels in the combustion change simultaneously in specific calibrated proportions. All conversions (except pure battery electric) must meet EPA standards. Converted vehicles operating in California must also meet California Air Resource Bo
