
Diesel locomotives burn diesel fuel. The following is an introduction to diesel engines: 1. Introduction: Diesel locomotives use diesel engines as the primary power source, driving the wheels through a transmission device. 2. Regulations: According to the type of internal combustion engine on the locomotive, the vast majority of engines used on national railways are diesel engines. 3. Impact: The fuel (diesel) burns in the cylinders, converting thermal energy into mechanical energy output by the diesel crankshaft. However, this energy is not used to directly drive the wheels. Instead, it is converted through a transmission device into mechanical energy suitable for the traction characteristics of the locomotive, which then drives the locomotive wheels to rotate on the tracks through the running gear. Diesel locomotives are the most widely used. In China, the term 'diesel locomotive' conventionally refers to diesel-powered locomotives.

















Car internal combustion engines mainly burn gasoline or diesel. After driving for so many years, I've noticed that ordinary cars mostly use gasoline, while some SUVs or trucks more commonly run on diesel. Gasoline engines use spark ignition, offering quicker acceleration when driving; diesel engines on compression ignition, which is more fuel-efficient but may have slower starts. Fuel selection is crucial—using the wrong type can damage the engine, such as filling a high-performance car with low-octane fuel. Nowadays, there are alternatives like ethanol-blended fuels or natural gas, which are more environmentally friendly but have fewer refueling stations, affecting convenience. Monitoring fuel consumption while driving is important, as a fuel-efficient car can save significant expenses annually. In short, gasoline-powered cars are the most common for daily use, but the key is to choose the right fuel based on the vehicle type.

Most internal combustion engines run on gasoline, such as unleaded fuel used by the majority of passenger cars, which is ignited by spark plugs. Diesel engines, on the other hand, burn diesel fuel and ignite spontaneously under compression, making them suitable for high-torque vehicles like trucks. The key properties of fuels are octane and cetane ratings—higher values ensure more stable ignition and prevent knocking. The combustion process generates power to drive the pistons, so efficiency is crucial. With advancements in technology, hybrid systems have partially reduced reliance on pure fossil fuels, but the core remains unchanged. Regular should include checking fuel lines and injectors to ensure complete combustion and prevent carbon buildup. Always follow the vehicle manual's fuel recommendations and avoid using cheaper, substandard fuels.

I'm quite concerned about environmental protection. Internal combustion engines burning gasoline or diesel produce significant pollution, with exhaust emissions worsening smog. Nowadays, cleaner fuels like biodiesel or ethanol gasoline are being promoted, which have lower emissions. However, petroleum-based fuels remain mainstream, which isn't good for the climate. Driving electric vehicles or other alternative energy vehicles is better, as it reduces carbon footprints. In terms of , some regions restrict high-emission vehicles and encourage energy-efficient models. Individually, one can choose cars with high-efficiency engines and perform regular maintenance to reduce pollution. A small tip: avoid aggressive acceleration to save fuel and lower emissions.

From an economic perspective, gasoline-powered cars are expensive to operate, with rapidly rising fuel prices impacting daily expenses. Diesel vehicles are relatively more fuel-efficient, especially for long-distance driving, making them more cost-effective. Fuel choice plays a significant role, and selecting a low-consumption vehicle is crucial. Nowadays, there are blended fuels like E10 gasoline, which have smaller price fluctuations, but engine compatibility must be considered. Daily expenses include refueling and , such as regular air filter replacements to improve efficiency. A money-saving tip is to drive smoothly and avoid sudden acceleration, which can extend engine life and reduce repair costs. Alternative fuels like compressed natural gas can save some money, but installation and conversion add extra costs.

Automotive fuels have undergone significant changes over the decades, and I've witnessed the evolution from gasoline dominance to diesel popularity and now to new energy solutions. Early vehicles ran on pure gasoline, which was highly volatile and polluting; later, diesel vehicles became popular for their efficiency; today, blended fuels like ethanol gasoline have emerged to reduce environmental impact. Fuel advancements drive technology, such as direct injection engines improving combustion efficiency. However, petroleum-based fuels remain dominant, with potential future shifts toward hydrogen or pure electric. Owners of older vehicles should pay attention to fuel compatibility to avoid engine issues. The historical trend is toward cleaner and more efficient options—choose the right fuel to protect your car.


