When I drive back after new year, I will create an illusion for myself. I believe that many drivers feel that fuel consumption has suddenly increased. They think that fuel consumption will inexplicably increase after driving for a long time. I thought it was natural aging of car, but it's not. Let me talk about this today. The increase in fuel consumption has nothing to do with age of car. The culprits are following situations that secretly "eat" "Your oil.
tires
Don't think that tires have nothing to do with fuel consumption. When tire pressure is too low, contact area between tire and ground is too large. not only increase fuel consumption, but also cause a risk of tire burst.
Spark plug deposits
If carbon deposits on spark plug increase or age, it becomes more difficult to start car, resulting in increased fuel consumption. The General Service Manual recommends changing spark plugs after 20,000 km, but this also depends on condition of vehicle. For most vehicles in good condition, spark plugs can be used between 30,000 and 40,000 km before replacement!
Intake system
The air intake system of a car is composed of an air filter, an air mass meter, a throttle valve, an intake pressure sensor, an air valve and so on. The air filter and throttle valve also need to be replaced regularly, otherwise car's air intake effect will be poor and fuel will be wasted.
Insufficient lubricating oil
Excessive lube oil will cause engine oil to participate in combustion, resulting in incomplete combustion of mixture, soot on spark plugs, mufflers and other parts, increased fuel consumption, slow increase in speed and decrease in power; low lube oil will cause dryness between fittings. Friction causes engine overheating, power loss and increased fuel consumption.
Tips
We usually pay attention to these problems. As they say, thousands of miles of rivers have collapsed into anthills, you need to work hard in every small check.