Why does the old Changan Mazda 3 consume so much fuel?
2 Answers
Due to the old Mazda 3 being equipped with a high-revving engine, the model is outdated with relatively backward technology, and its manual-automatic transmission only has 4 forward gears, resulting in extremely high fuel consumption during high-speed driving. When driving at around 140 km/h, the engine speed reaches 4000 rpm. Driving style and road conditions vary, so fuel consumption may also differ to some extent. Additional information: Adding a certain amount of cleaner when refueling is recommended. After cleaning, it's best to drive at high speed for a while, which helps increase exhaust flow and allows stronger airflow to carry out larger carbon deposit particles. Regularly replace the three filters (oil filter, air filter, and fuel filter) as they must be changed periodically during vehicle use.
I've been driving that old Mazda 3 for many years, and it feels quite fuel-thirsty, probably related to my driving habits – rapid acceleration and frequent highway driving tend to consume more fuel. Plus, with the car's age, engine wear reduces efficiency, spark plug erosion causes uneven ignition, and issues like underinflated tires or clogged air filters all contribute to higher fuel consumption. I used to be lazy about checking these small details, but now I'm learning to maintain it regularly, changing oil and cleaning carbon deposits, which has indeed improved fuel efficiency. That's how it is with older cars – proper care can extend their lifespan for several more years.
