What are the effects of ethanol gasoline on cars?
3 Answers
Effects of ethanol gasoline on cars: 1. Corrosion of metal. During the combustion process, ethanol produces acetic acid, which can corrode metal or plastic components of the car; 2. Increased fuel consumption. The calorific value of ethanol is about 30% lower than that of gasoline, reducing combustion efficiency and increasing the car's fuel consumption; 3. Reduced power performance. The evaporation temperature of ethanol is higher than that of gasoline, leading to slower vaporization during combustion, which affects the formation of the air-fuel mixture and results in decreased power. When using ethanol gasoline, note the following: 1. Before filling up with ethanol gasoline for the first time, be sure to clean the fuel system and remove engine carbon deposits; 2. Avoid mixing ethanol gasoline with regular gasoline or alternating between them.
I've been using ethanol-blended gasoline for several years now, and it's true that the fuel consumption is about 10% higher than regular gasoline, mainly because ethanol has a lower heat value, so you get fewer miles per tank. But it's more environmentally friendly with fewer exhaust emissions, and I feel the air is fresher when driving. Older cars need attention - like my friend's old Buick had fuel line corrosion issues and needed additives to prevent clogging. Newer cars are generally designed to be compatible, manufacturers say it's fine to use as long as you maintain them regularly, so no need to worry too much. In hot weather, gasoline absorbs moisture faster, so remember to tighten the fuel cap properly to prevent water from entering the system and causing rust.
Experience tells me that many cars experience malfunctions due to ethanol-blended gasoline, especially those with aging fuel systems. The pipelines may rust and corrode, and clogged fuel injectors can cause engine shaking and insufficient power. New cars fare better as they are designed with this in mind, but prolonged use can accelerate wear on fuel pumps or filters. It's recommended to inspect the fuel system every 20,000 kilometers, clean carbon deposits, and use high-quality gasoline additives to protect components. Driving habits also affect fuel consumption—avoid heavy acceleration or frequent short-distance starts and stops. The mixed fuel may be slightly less efficient, but you'll adapt with time.
