How to Deal with High Fuel Consumption in Focus?

1 Answers
OAnthony
07/30/25 3:09am
High car fuel consumption can be reduced by cleaning engine carbon deposits, checking the oxygen sensor, regularly replacing the three filters, and inspecting the electronic control unit. The combined fuel consumption of the Focus is 5.5-5.9L/100km. There are currently 7 models of the Focus on sale, including the manual Fengyue, automatic Fengchao, and automatic Fengchao, with a combined fuel consumption of 5.5L/100km. The automatic Fengyue and automatic ST-Line have a combined fuel consumption of 5.7L/100km. The automatic ST-Line has a combined fuel consumption of 5.6L/100km. The automatic Liechao has a combined fuel consumption of 5.9L/100km. The above figures are NEDC combined fuel consumption, which is the fuel consumption data measured under the NEDC test procedure. The actual fuel consumption is higher than this value, ranging from 6.7-8.0L/100km. Methods to reduce fuel consumption: Clean engine carbon deposits: Excessive engine carbon deposits are a major cause, mainly due to the use of unsuitable fuel. It is recommended to add a certain amount of cleaning agent when refueling. If the effect is not obvious, it indicates a significant amount of carbon deposits in the engine. In this case, the car must be taken to a 4S shop for professional cleaning of the engine carbon deposits by technicians. Check the oxygen sensor: As an internal control unit of the car, the oxygen sensor mainly monitors the fuel-air ratio of the engine. Once damaged, it will cause an imbalance in the fuel-air ratio, leading to a sudden increase in fuel consumption. When the oxygen sensor is damaged, the exhaust pipe will emit darker-colored exhaust gases during driving, and the oxygen sensor should be replaced at this time. Regularly replace the three filters: During vehicle use, the oil filter, air filter, and fuel filter must be replaced regularly. If not replaced for a long time, they become dirty and send incorrect information to the engine control unit, resulting in incomplete fuel combustion and increased engine carbon deposits. Check the electronic control unit: Although the engine's electronic control unit is highly reliable, in vehicles with long service life, various faults are inevitable.
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