What Are the Effects of Poor-Quality Fuel on the Engine?
3 Answers
Poor-quality gasoline has the following effects on the engine: Impact on the Fuel Supply System: The impurities in poor-quality gasoline exceed the standard. When the engine is running, poor-quality gasoline fills various components of the fuel supply system, such as the fuel pump filter screen, fuel filter, and fuel injector, which have small holes or filtering functions. The impurities in poor-quality gasoline can easily clog these filter screens and small fuel passages, leading to poor fuel supply and reduced engine performance. Impact on the Valves: If the gum content in the fuel is too high, the gum accumulated in the valve guide can prevent the valve from closing properly, resulting in the phenomenon of the piston hitting the valve, causing severe damage to the engine. Failure of the Oxygen Sensor and Catalytic Converter: Gasoline containing impurities cannot burn completely, leading to poor exhaust flow, unqualified emissions, unstable engine operation, weak acceleration, poor overall fuel economy, and increased fuel consumption.
My over ten years of driving experience tells me that using inferior engine oil has a huge impact on the engine. The car loses power, feels sluggish when accelerating like an old ox pulling a cart, and fuel consumption skyrockets, hurting the wallet. The key issue is insufficient lubrication, causing rapid wear on internal components like pistons and crankshafts. Over time, the engine noise becomes annoyingly loud. What's worse, inferior oil tends to form sludge, clogging the oil passages and impairing heat dissipation, often leading to overheating warnings in summer. Using low-quality gasoline is even worse—incomplete combustion leads to carbon buildup, damaging the catalytic converter. My advice is to stick with genuine oil and change it every 5,000 kilometers. Don’t save small money only to spend big on repairs later. Regularly check the oil’s color and viscosity, and replace it immediately if anything seems off.
From a technical perspective, I often ponder the issues with low-quality oils. Inferior engine oil has poor lubricity, causing severe metal friction inside the engine and accelerating wear, which shortens component lifespan. Poor-quality gasoline is even worse—low combustion efficiency leads to excessive carbon deposits, affecting both cylinders and piston rings, resulting in unstable power output and increased fuel consumption. Sludge buildup is a common issue, clogging the oil pump and disrupting oil supply, leading to poor heat dissipation and overheating. Seals also deteriorate faster, causing frequent oil and gas leaks, ultimately doubling repair costs. My experience with low-quality oil shows that regular oil quality checks are crucial. By inspecting the dipstick or smelling the oil, you can detect issues and immediately switch to high-quality oil to protect your vehicle.
