Is it normal for the Verna to consume 9.5 liters per 100 kilometers?

[MichaelMarie]

Verna consuming 9.5 liters per 100 kilometers is not normal, it is on the higher side. Engine carbon deposits may lead to higher fuel consumption: During long-term operation of the vehicle, gasoline inevitably produces carbon deposits and sludge during combustion. If these deposits and sludge are not cleaned in time, they can cause an increase in the car's fuel consumption. In this case, it is necessary to clean the engine carbon deposits. Spark plug failure may lead to higher fuel consumption: The role of car spark plugs is to use high voltage to generate sparks to ignite the air-fuel mixture. If damaged, the ignition energy will decrease, and the mixture will burn unevenly, leading to slower acceleration and increased fuel consumption. In this case, it is necessary to replace the spark plugs or clean the carbon deposits on them.