The cost of petrol and diesel fuel in Europe in 2020. Information is updated twice a month. Travel in Europe by car.
Nov 22, 2020 · Pilot fuel is pre-mixed with air before entering the engine. In diesel engines, fuel is injected into the engine cylinder near the end of the compression stroke. During a phase known as ignition delay, the fuel spray atomizes into small droplets, vaporizes, and mixes with air, before being ignited.