Why does the old Changan Mazda 3 consume so much fuel?
2 Answers
The old Changan Mazda 3 consumes excessive fuel mainly due to excessive carbon deposits in the engine. Here are some relevant details about the Mazda 3: 1. Interior: The new generation Mazda 3 features a minimalist design style for the air vents and center console interface. Metal or high-gloss piano black trim panels are used on the door panels, air vents, or around the gear lever to enhance the overall texture. Additionally, lightweight seats improve riding comfort, though only black and white color options are available for the seats and interior. 2. Configuration: The new generation Mazda 3 is equipped with advanced safety features such as the HBC intelligent lighting control system, AFS active steering headlights, HLA hill start assist system, ESS emergency brake warning system, RVM rear blind spot detection, and LDWS lane departure warning system, which are consistent with other models in the Mazda family.
I've been driving an old Mazda3 for over a decade, and its fuel consumption is alarmingly high. The main issue lies in its outdated engine technology, especially the inefficient 4AT transmission - the RPM shoots up to 3000 with just slight acceleration. These older vehicles also suffer from severe carbon buildup; the fuel injectors get as clogged as a range hood, preventing complete fuel combustion. Another detail is the oxygen sensor - after ten years its sensitivity declines, causing the ECU to unnecessarily increase fuel injection. Low tire pressure and running the AC at full blast also guzzle gas. Now I check tire pressure every two weeks and clean the throttle body during every maintenance, which has brought the fuel consumption down from 11L/100km to just over 9L/100km.
