What are the reasons for the high fuel consumption of the Peugeot 307?

[McLawson]

The reasons for the high fuel consumption of the Peugeot 307: 1. Engine carbon deposits: Excessive carbon deposits can lead to incomplete combustion of the air-fuel mixture, increasing fuel consumption. Therefore, it is necessary to regularly clean the engine carbon deposits, including: intake tract, throttle valve, fuel injector, and cylinder carbon deposits. Solution: Clean the carbon deposits in a timely manner. 2. Vehicle weight: Carrying excessively heavy items in the vehicle can increase fuel consumption by about 2% compared to normal driving. Solution: Reduce the weight of the vehicle. 3. Clogged air filter: A clogged air filter restricts air intake, causing an overly rich air-fuel mixture or a blocked exhaust pipe. Solution: Replace the air filter promptly. 4. Worn spark plugs: Worn spark plugs with excessive gap wear result in insufficient ignition, leading to incomplete combustion of the air-fuel mixture and increased fuel consumption. Solution: Replace the spark plugs in time. 5. Low cylinder pressure: Practice has shown that cylinder pressure below the specified value can increase fuel consumption by 20% to 25%. Solution: Conduct timely inspections of cylinder pressure.