What are the differences between diesel and gasoline pickup trucks?

[AubreeMarie]

Here are the specific differences between diesel and gasoline pickup trucks: 1. Fuel supply and ignition method: In diesel engines, fuel mixing and combustion occur inside the cylinder. The fuel injector directly sprays high-pressure diesel into the combustion chamber, where it mixes with air to form atomized gas that ignites upon compression. Therefore, gasoline engines have an additional complete ignition system compared to diesel engines. In gasoline engines, gasoline from the fuel pump mixes with air from the air filter in the carburetor to form a combustible mixture, which enters the cylinder combustion chamber through the intake manifold and is ignited by an electric spark. 2. Fuel: Diesel engines use diesel fuel, where the cetane number is an indicator of the fuel's auto-ignition performance (combustibility). The distillation range represents the volatility of diesel, and viscosity is a measure of fuel fluidity. Gasoline engines use gasoline, where knocking is an abnormal auto-ignition phenomenon that may occur during combustion as the compression ratio and gas temperature in the cylinder increase. A higher octane number indicates stronger anti-knock capability, allowing for higher compression ratios. Anti-knock additives, commonly lead compounds, are often added, which is why gasoline often contains lead. 3. Corrosion resistance: Diesel engine main bearings use high-performance materials like lead bronze or lead alloys, which have relatively poor corrosion resistance. Gasoline engine main bearings and connecting rod bearings can use softer materials with better corrosion resistance, such as babbitt metal.