There are currently two types of conventional engines available on the market - gasoline and diesel. This article will explain everything you need to know about alternative fuel motors.
First, it is best to understand what a diesel engine is. This is an internal combustion-style motor that uses fuel and compressed air to move the vehicle. It works by compressing the air until it reaches an extremely high temperature that then ignites the diesel fuel inside the cylinder. This combination of combustion and expansion causes the piston to go up and down. This action converts chemical energy into mechanical energy, which is simply a technical term for horsepower.
Diesel exhaust fluid (DEF) is a liquid that is injected into the exhaust system of a diesel unit. This occurs after the fluid leaves the motor but before it moves into the catalytic converter.
Another phrase you may hear at some point is the diesel engine hour meter. This is the display (digital or analogue), that shows how many hours the engine has run over its entire lifetime.