Don’t change the oil change cycle，Improper maintenance of the oil filter will make the oil dirty，Make motor oil to block the Pistons、Pistons around the oil gap，As a result of the rising fuel consumption in the reason#17。Dirty oil will also cause bearing、cylinder、Pistons、The wear of the piston ring intensified。These wear components，seabet myLike the specific explanation of the previous corresponding articles，will lead to an increase in fuel consumption。Special attention: Dirty oil itself is higher than the consumption of clean oil。

Insert error due to oil ruler，Unattended to the end，As a result, the measured oil level is lower than the actual oil level，So add new oil，Make the oil level too high。If the bottom of the link of the connecting rod of the engine is touched by the stress lubricating engine，or the oil ring of splashing the engine is immersed in the oil pool too deep，It will cause excess oil to throw it to the wall of the cylinder，Enter the burning room。

If the size of the piston ring is selected (such as, 0.020 " The increased piston ring is used in a cylinder that is increased 0.040 " ，Due to improper cooperation of the two，It is impossible to scrape the oil on the upper part of the cylinder，It will immediately cause the phenomenon of oiling。The same，The gap between the bottom of the piston ring and the ring groove also increases，Further increase the consumption of oil，For the reason, as described in#26。Different types of engines，Different working conditions，Pistons group that requires a variety of different specially designed and manufactured pistons。Each type of piston ring group，Make it for a certain purpose，If used in the wrong place，It will not be able to control the engine oil consumption of the engine。Using the correct piston ring group is very important。

Mack of Modern engine、Increases of the overlapping angle of the air valve and the compression characteristics，Increase the vacuum of the engine。When a certain new engine slows down，The vacuum of aspiration is as high as 25 inches (635mm) Hryphin height (old engine design = 508mm Hryptuous Hryphin)。High vacuum needs to develop a new oil ring，Effective sealing on both sides of the piston rings (above and below)，Avoid leaking oil from the sides of the oil ring and back on the high vacuum and deceleration.。This reason is often a main reason for the blue smoke or high fuel consumption，So，When you need it，Oil ring with side sealing ability is very important。

The wear of the timing gear or chain will cause the timing of the air valve and crankshaft。Excessive side gaps caused by wheel teeth or chains，Make the engine adjustment cannot be realized: the positive time and the next circle in the first circle may be different。When the movement of the air valve and the piston is not synchronized，It will cause excessive oil consumption。The reason is that over -vacuum in the burning room will draw a large Seabetamount of oil into，Burning。

When installing a new piston ring，Be careful，At the minimum diameter of the cylinder，The Pistons still leave enough circumcision gaps in the circumference，To compensate thermal expansion。Usually the gap required for the cast iron ring of the vehicle engine is 0.003-0.005 inch/inch pore diameter。Because the combustion gas comes directly from the burning room，The heating speed and working temperature of the piston ring are higher than the cylinder。The effect of the cylinder wall due to the effect of water case，low temperature。This means that the piston rings expand more，Therefore, there must be a gap to compensate – That is the dialing gap at the round end – Otherwise，In the engine work，The end surface of the Pistons will interfere with the cylinder wall，Impact，Then cause abrasions、Adhesive wear，Lead of rising fuel consumption。If the engine continues to run，Especially when the load is heavier，Adhesive wear will be more serious。The end surface of the piston ring is pressed inward to the Piston Ringbut，Gap in the ring and cylinder wall increases，Burning room High temperature High pressure Burning gas along this channel directly damage lubricating oil on the wall of the cylinder，Enter the oil bottom，greatly increased the oil consumption。Serious interference even causes the piston ring to break，The consequences generated as described in#27。Excessive sloppy circular circular circular gaps will also increase the consumption of motor oil。

If the piston ring is broken or over -worn，Causes stress stress and gaps cannot be maintained，Will inhale excess oil into the combustion room when inhaling，Burning gas runs along the piston when doing the journey。Both of them cause pistons、cylinder wall、Burning of the oil around the piston ring、Carbonization。Fracture piston ring is more destructive，Broken off with a sharp mouth is likely to cut into the side of the piston ring groove，Destruction caused by the ring shore and the thorough damage of the piston。When the engine is repaired，The worn piston ring should be replaced immediately，instead of re -use。The new piston ring has a fast positioning surface，You can control the consumption of the oil immediately。The piston ring used，Even if only slight wear，Since the surface has been polished，Can't position it appropriately，It will also cause excess oil consumption。

Obviously，The piston ring of the adhesive ring cannot control the oil。So，Try to avoid this situation as possible。First，The installation of the Pistons should ensure the correct piston seabet appring gap，This，When engine work，The Pistons are still active in the ring groove at the operating temperature。In addition，Make sure the piston ring is cleaned when the engine components are installed，Dust -free soil particles，Otherwise，may cause the piston ring to stick。third，Select oil products with excellent performance，Reduce carbon deposits、Petty mud、The generation of paint film。Fourth，Should be changed regularly、Clean the oil filter。Fifth，Avoid the engine overheating。

The lagging air valve is right time，Make the intake valve closed for a long time after the start of the aspiration.，The vacuum in the cylinder rises，Increase the oil from the piston and ring，The probability of burning the burning room in the upper part of the cylinder inhalation。

Incorrect oil pressure setting，Failure to release the pressure pressure valve，All will cause excessive oil pressure。As a result, the engine is infiltrated by excessive oil，Generate results like bearing wear。

The oil viscosity used by the engine is too thin，May cause high oil consumption。Please refer to the vehicle maintenance manual，Choose the right oil viscosity according to the driving conditions and environmental temperature。

Some latest engines to meet the emission requirements，The design of the new piston ring was adopted。Sometimes，This design will occur mild "tap"。Sometimes it will increase motor oil consumption。

In the new engine design，Frequent composite materials composed of metals and other materials，Different from the degree of thermal expansion and contraction due to different materials，After running for a long time，Food and sealing will generate heat stress fatigue or rupture，also leading to an increase in fuel consumption level。

Most new engines are equipped with burst sensors，to adjust the timing system to reduce emissions，Improve the power and performance of the engine。Cree ignition in advance，It is due to the burning process，Caused by the early ignition of fuel。Early ignition leading to the sharp increase in pressure accumulated on the piston，Destroy the normal exercise of the piston ring，Seal the piston ring on the top and bottom of the piston ring，In the end, increase gas and fuel consumption through the piston ring。Due to the failure of the air intake flow sensor and the sensor fault of the throttle position, the same problem。

Lugging refers to allowing the engine to run at a low speed when high -speed (larger power/torque) should be used，This will cause the piston to bear greater pressure，and can cause increased oil consumption。

Make the engine at a speedy operation without speeding，Many different reasons related to this，will cause engine fuel consumption to rise。These situations include crawling and frequent start and stop in urban traffic，You can also refer to the reason 36。

Seal leakage of the turbocharger，will inhale the oil into the burning room，Burn there and form carbon，Obstructing the normal work of the engine，and further lead to more oil consumption。

Excessive intake intake system resistance，will increase the vacuum in the engine，and can increase the oil consumption，As described in item 24。The severe blockage of the air filter is an example of this situation。

If there is no completely burning fuel into the lubrication system，Machine oil will become thinner and easier to volatilize，This will lead to higher oil consumption。Excess fuel may be leaked due to fuel nozzle、Problem fuel pump、High or too much idle operation，Enter the lubrication system and mix with the oil。