Why did the Audi Q5L's fuel consumption suddenly increase?

[LeJourney]

A sudden increase in the fuel consumption of the Audi Q5 could be caused by reasons such as excessive load in the vehicle, carbon deposits in the engine, or low tire pressure. The specific reasons are as follows: Excessive vehicle weight: The weight of the vehicle has a significant impact on fuel consumption. When the vehicle is fully loaded, fuel consumption inevitably increases. Therefore, it is advisable to minimize unnecessary items in the car to reduce weight and achieve fuel savings. Severe engine carbon deposits: If there is a significant buildup of carbon deposits in the engine in a short period, it can also lead to higher fuel consumption. This situation is likely due to the use of substandard fuel. The solution is to add a certain amount of cleaning agent when refueling. If the carbon deposits are extensive, it is necessary to visit a 4S store or a repair shop for professional cleaning. Do not attempt to clean it yourself at home.