Is 12L per 100km considered high fuel consumption?

[Maeve]

12L per 100km is not considered high fuel consumption. Reasons for high car fuel consumption: 1. Temperature effects causing fuel consumption fluctuations: Generally in winter when temperatures are low, fuel consumption increases somewhat, almost comparable to fuel consumption when using air conditioning in summer. 2. Lack of vehicle maintenance over time: Dirty engine oil and air filters can also lead to increased fuel consumption. Dirty oil results in poor lubrication, increasing resistance in the engine's moving parts, requiring more energy to overcome this resistance, thus increasing fuel consumption. 3. Spark plugs needing replacement: Once spark plugs reach the end of their lifespan, although they can still function, they may cause delayed ignition due to insufficient energy, missing the optimal ignition timing. 4. Insufficient tire pressure: Low tire pressure increases the contact area between the tires and the ground, increasing friction and thus driving resistance, leading to higher fuel consumption.