Take care of your car. A well-tuned engine will help decrease fuel consumption. Everything you need is just regular and simple service procedures.
Give up on unnecessary things. Every extra pound or kilo can affect fuel efficiency. Try to clear the trunk and back seat of unnecessary things that can add weight to your car (e.g., brassies).
Do you turn off the engine? As long as the car is idling, it consumes fuel. Build a habit to turn the engine off if you do not move or wait for someone for more than 10 seconds.
Do not complicate. Higher gear means lower engine speed and it can increase fuel efficiency. So, use high gears if possible.
“Slippery customer”. Opened car windows, bicycles, and a bunch of boxes on a car's roof can greatly increase fuel consumption due to high frontal resistance. Fast driving also increases wind resistance, causing your car to consume more fuel.
No costs — no problems. Usually, anything that discharges the battery (e.g., air conditioning) negatively affects cost efficiency of a trip. But it is much worse if your battery is faulty. Therefore, you should constantly monitor its condition.
Time decides everything. A “start-stop” driving does not contribute to fuel economy. So if you live in the suburbs, avoid driving during rush hours whenever possible and you will notice a significant reduction in fuel consumption.
Be attentive. While driving a car, think your actions through in advance. Slow down instead of stopping completely when you see a red traffic light. Or speed up when you see an ascent ahead. All these little tricks can help reduce fuel consumption.
About fuel. Fuel types differ. High-quality fuel burns more efficiently and makes a trip more economical. Always give preference to high-quality fuel.
Inflate the wheels. Properly inflated tires are safer and last longer. They also reduce frontal resistance on the road, reducing fuel consumption.