Higher fuel economy still need to know more about fuel consumption of a few big reason for inventory

Not long ago, a net friend said his car very long time consumption, run a full tank of gas and how long did not see the bottom, a few times but we also came close to burn oil dry broke down on the halfway, after estimate found that his 1.8 -liter car hundred kilometres compared to 14 "unexpectedly, this number really startled him, then he drove to the 4 s shop made a comprehensive inspection, original own car oxygen sensor is damaged, led to increased fuel consumption. In fact things like this or more in our daily life, many owners friends will only drive, meet with fuel consumption increased abnormal also clued-up, actually causes of vehicle fuel consumption increased also varied, here I am for the owners to introduce several kinds of common friends lead to the causes of fuel consumption increase and solution:
1, too much carbon deposit in the engine
In the short term, the engine of coke too much reason, mainly is to use the wrong product, this kind of situation happen more easily on the long drive back or after making subtenancy vehicles use. Run long distance driving, it will be added around the fuel, even in the same grade of fuel oil around the quality are also different, so are likely to misuse the wrong product. Added and lent the car to use, more difficult to control product quality.
Solution: add a certain amount of cleanser to pump the gas, if the effect is not obvious, is the carbon deposit in the engine is more, this must drive to 4 s shops, composed of professional and technical personnel to clean carbon deposit within the engine. And after cleaning, it is better to drive to run for a period of high speed, this is beneficial to increase the exhaust, make stronger airflow out of the large carbon particles.
2, vehicle damage of oxygen sensor
As automobile internal control unit, oxygen sensor is mainly monitor the ratio of the engine oil and gas, its once damaged, will cause the engine oil and gas ratio imbalance, fuel consumption would be increased suddenly. After oxygen sensor is damaged, the vehicle in the process of driving, darker will vent discharge of tail gas.
Solution: to the formal 4 s shops replace oxygen sensor, some owners may pursue cheap in roadside repair, but after replacement, must after hot car (oxygen sensor is working in high temperature) detector is used to inspect again, see have fluctuation signal output is the real thing. Because the vehicle does not work, under the condition of oxygen sensor doesn't work, even with fakes, couldn't read directly from the instrument.
3, "/" for a long time did not change
Vehicles in use process, a/(oil filter, air filter, fuel filter) must be replaced periodically, if not change for long time, they will become dirty greasy, affect the use, and give the engine control unit error message, cause insufficient fuel combustion, increase engine carbon deposit.
Solution: according to the mileage, to do maintenance on a regular basis and replace "/".
4, the engine control unit has a problem
Engine electronic control unit of the reliability is high, but in the use fixed number of year long car, hard to avoid can appear this or that. An integrated block, bolt looseness damage, some electronic components welding foot joint open welding, resistance and capacitance component failure. Engine control unit problems will directly lead to difficulty in starting, fuel consumption increase, dynamic performance is poor, exhaust black, and so on and so forth.
Solution: drive to 4 s shops to conduct a comprehensive physical examination, the change of the change, the of the trim.