Why is the fuel consumption of Buick Excelle XT so high?

[DelBrady]

The reasons and solutions for the high fuel consumption of the Buick Excelle XT are as follows: 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: the intake tract, throttle valve, fuel injector, and cylinder deposits. The solution is to 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 fuel consumption! The solution is to reduce the vehicle weight when carrying too many items. 3. Clogged air filter: A clogged air filter can obstruct air intake, resulting in an overly rich air-fuel mixture or a clogged exhaust pipe. The solution is to replace the air filter promptly. 4. Aging spark plugs: Worn-out spark plugs with excessive gap wear can cause insufficient ignition, leading to incomplete combustion of the air-fuel mixture and increased fuel consumption. The solution is to replace the spark plugs in a timely manner.