Why does the 2013 Peugeot 408 have high fuel consumption?
2 Answers
The reasons for the high fuel consumption of the 2013 Peugeot 408 are as follows: 1. Driving habits: Rapid acceleration and sudden braking in urban driving and speeding can increase fuel consumption by 5% to 30%. Prolonged idling will also increase fuel consumption because the vehicle consumes energy as long as it is running. Driving at a constant speed as much as possible can effectively reduce fuel consumption. 2. External environment: Road conditions and weather temperature can affect fuel consumption. Generally, flat roads are more fuel-efficient than bumpy roads, straight roads are more fuel-efficient than winding roads, and smooth roads are more fuel-efficient than congested roads. In hot summer weather, air conditioning cooling will consume some fuel. 3. Car maintenance: Car maintenance includes checking tire pressure and cleaning carbon deposits. Regularly check and adjust tire pressure. If the tire pressure is too low, the contact area between the tire and the ground increases, leading to higher driving resistance and increased fuel consumption. In addition, dirt and grease on the engine surface can affect engine cooling, resulting in higher fuel consumption.
I've been driving for over a decade, especially the older Peugeot 408, where high fuel consumption is completely normal. This car's engine is naturally aspirated, and as it ages, its efficiency noticeably declines. It's common to see fuel consumption above 12 liters per 100 km in city driving. Older cars are prone to carbon buildup, leading to unstable idling or slow starts, which consumes more fuel. If you skip regular maintenance, like not changing the oil or having a clogged air filter, fuel consumption will get even worse. Replacing spark plugs and cleaning the throttle body can help a bit, but it still won't match a new car. I recommend checking tire pressure weekly and keeping it around 2.4 bar to reduce drag and save some fuel on highways. After all, as a car ages, proper maintenance is key to avoiding increased safety risks.
