Is 15 liters per 100 kilometers considered high fuel consumption?

[LeEzra]

15 liters per 100 kilometers is considered high fuel consumption. Here are some fuel-saving tips for cars: 1. Ensure proper tire pressure. Both underinflation and overinflation can increase fuel consumption, so check tire pressure regularly. 2. Switch to fuel-efficient tires. For example, Pirelli's P6000 Powergy tires can reduce rolling resistance by about 15%, helping save approximately 3.75% on fuel. 3. Avoid arbitrarily changing tire size. Wider tires increase rolling resistance, leading to higher fuel consumption. 4. Regularly check wheel alignment. Over time, tires and steering may become misaligned, which also increases fuel consumption. 5. Use the lowest viscosity engine oil recommended. Lower viscosity oil reduces engine workload, resulting in better fuel efficiency.

[VonElliana]

As someone who drives to work every day, let me talk about fuel consumption. 15 liters per 100 kilometers is indeed quite high for a regular family car. The 1.6L sedan I currently drive averages only 7-8 liters. During city commutes with heavy traffic, it’s understandable for it to spike to 10-12 liters. But 15 liters? Either it’s an old car over ten years old, a big vehicle with a 3.0L or larger engine, or it’s fully loaded and climbing mountains or off-roading. Road conditions also play a crucial role—crawling in downtown traffic daily is vastly different from cruising on the highway. My neighbor drives an American full-size pickup truck, and in winter with the heater on and snow tires, it can gulp up to 18 liters. In an era of soaring fuel prices, this kind of fuel consumption is hard on the wallet.

[AriannaDella]

From the perspective of maintenance costs, consuming 15 liters per 100 kilometers is indeed painfully high. If an average car costs around 0.5-0.6 yuan per kilometer in fuel, 15 liters translates to over 1 yuan per kilometer just in fuel expenses. For someone driving 20,000 kilometers a year, that's an extra 10,000 yuan spent on fuel alone—equivalent to half a year's rent in a small city. I've seen many friends driving such fuel-guzzling vehicles who even hesitate to turn the air conditioning to full blast in summer. However, it's somewhat understandable for rugged off-roaders or V8 sports cars, as they're not designed to be fuel-efficient in the first place. But if an ordinary sedan is this thirsty, it's likely due to severe carbon buildup or insufficient tire pressure—time for a check-up. Wouldn't it be better to spend the savings on car maintenance?

[KylieMarie]

Judging whether fuel consumption is high or low depends on the vehicle model. For a 1.5-ton urban SUV, 10 liters per 100 km is normal, while 15 liters is considered high. For a compact car, this level of fuel consumption is definitely abnormal. The engine condition has a significant impact—my old 2.0T car's fuel consumption jumped from 9 to 13 liters due to an oxygen sensor malfunction. Driving habits are even more critical: aggressive acceleration and sudden braking can instantly spike fuel consumption. In one test, gentle city driving saved 3 liters compared to aggressive driving. Details like low tire pressure or running the AC at maximum also stealthily increase fuel consumption. If fuel consumption truly reaches 15 liters, first check if the onboard display is accurate, then scan for engine trouble codes for a reliable diagnosis.