
You can refer to the following points to save fuel: 1. Reduce the vehicle weight as much as possible: Keep the interior simple and avoid placing unnecessary items. Statistics show that every 1kg increase in vehicle load will increase fuel consumption by 1%. 2. Avoid excessive vehicle modifications: Adding spoilers, protective covers, or rear wings can disrupt the original aerodynamic design of the vehicle, increasing wind resistance and consuming extra fuel. Modifying lights will also increase electrical usage, leading to unnecessary fuel consumption. 3. Replace worn-out parts promptly: Clean engine carbon deposits, check the oxygen sensor and electronic control unit, and regularly replace the three filters to improve the engine's working environment and reduce fuel consumption. 4. Develop good driving habits: While driving, avoid sudden acceleration, high-speed driving in low gears, prolonged idling, frequent lane changes, or braking. Aim for smooth starts, steady-speed driving, and reduced braking. 5. Choose the right engine oil: Keeping the engine well-lubricated can reduce carbon deposits on the cylinder walls and piston surfaces, thereby lowering fuel consumption.

Having driven for over a decade, I've found that if the Tiida's fuel consumption is high, the first thing to address is the habit of sudden acceleration and braking. Don't stomp on the gas when the light turns green; instead, ease off the throttle when you see a red light ahead and coast to save fuel. Don't crank the AC too high—opening windows in summer saves more fuel than using AC, but on highways, open windows actually increase fuel consumption due to higher wind resistance. Keep unnecessary heavy items out of the car and keep the trunk clean. Regular maintenance is crucial—a clogged air filter makes the engine work harder, so replace it when needed. Using the right oil viscosity matters too; thicker oil increases fuel consumption. Maintain proper tire pressure—underinflated tires increase rolling resistance, leading to higher fuel consumption. I check tire pressure weekly and always before long trips, as this is the most overlooked fuel-saving detail. Adopting a gentler driving style can reduce fuel consumption by one or two points.

Don't rush to complain about high fuel consumption in old cars, proper daily maintenance is crucial. Excessive carbon buildup in the throttle body affects air intake efficiency - I clean mine every 30,000 km. Worn spark plugs reduce ignition efficiency, replace them promptly; platinum ones last longer and save fuel. Don't wait until engine oil turns black to change it, follow the manual's mileage intervals to reduce internal friction. Excessive tire tread wear increases resistance - get a wheel alignment every 20,000 km. Avoid cheap, low-quality gasoline as it causes carbon deposits. When using AC, switch between recirculation and fresh air modes wisely - recirculation cools faster but shouldn't be used continuously. The most overlooked part is the oxygen sensor - a faulty one can increase fuel consumption by 20%, so regularly reading fault codes is important. Travel light - just keep a jack in the trunk.

After five years of driving the Tiida, I've discovered many fuel-saving tips. Start gently, release the accelerator when it reaches 2000 RPM and then press it slowly again—this saves more fuel than flooring it. Avoid morning rush hours; I'd rather leave half an hour earlier and take less congested routes. Maintaining 90-100 km/h on highways is the most economical, while driving at 120 km/h increases fuel consumption by at least 15%. Don’t fill the tank completely, as driving with a full load consumes more energy. Turn off the AC before shutting down the engine to avoid high load during the next startup. Shift to neutral at red lights lasting over 30 seconds to reduce power loss from braking in Drive (D) mode. Remove unused roof racks and side steps to minimize air resistance. Replace the AC filter regularly to ensure smooth airflow and higher cooling efficiency. In summer, try to park in shaded areas—using the AC after the car has been exposed to direct sunlight consumes more fuel.


