Can Diesel Fuel Be Used If Mixed with a Small Amount of Engine Oil?
3 Answers
Diesel fuel mixed with a small amount of engine oil can still be used, as a small amount of oil does not affect its usability. However, excessive amounts can lead to issues such as idle vibration. Source of Diesel Engines: A diesel engine is an engine that burns diesel fuel to release energy. It was invented in 1892 by the German inventor Rudolf Diesel. In honor of the inventor, diesel fuel is referred to by his surname 'Diesel,' and the diesel engine is also known as the Diesel engine. Principle of Diesel Engines: When the piston approaches top dead center, the fuel injection nozzle of the fuel supply system injects fuel into the cylinder combustion chamber at extremely high pressure within a very short time. The diesel fuel forms fine droplets, mixes with high-pressure and high-temperature air, and the combustible mixture ignites spontaneously. The violent expansion generates explosive force, pushing the piston downward to perform work. At this point, the temperature can reach 1900-2000 degrees Celsius, and the pressure can reach 60-100 atmospheres, producing a very high torque. Therefore, diesel engines are widely used in large diesel equipment.
I'm a seasoned driver with over 30 years of experience, and I know all too well about the dangers of this kind of mixture. Mixing a small amount of engine oil into diesel might seem trivial, but it actually poses significant hidden risks. The addition of oil alters the fuel composition, which can lead to incomplete combustion of diesel, increased carbon buildup in the engine, and even clogged fuel injectors. Over time, this accelerates engine wear and results in high maintenance costs. If the amount is minimal, like a drop or two, it might occasionally be harmless, but I advise against taking the risk. For safety's sake, it's best to drain the mixed fuel as soon as possible and replace it with clean diesel. This is about driving safety and the longevity of your vehicle—don't invite big trouble just to save a little money.
I usually pay great attention to car maintenance, so I was quite conflicted when this happened. A small amount of engine oil mixed into diesel fuel—it's advised not to directly add and use it. Engine oil contains additives that react poorly with diesel, making the fuel overly lubricated, reducing combustion efficiency, and weakening engine output. In the long run, the fuel injection system may develop issues, such as abnormal noises or stalling. For safety, you can add some cleaning agent to dilute it, but it's best to do so under professional guidance to avoid accidents. Remember, always check container labels carefully when refueling daily—don’t make the same mistake as me by accidentally knocking over an engine oil can.
