Often, after the car has covered 100 thousand km, the owners of Mitsubishi Lancer 9 begin to notice that the car has begun to consume a significant amount of oil. In some cases, even Lancer 9 oil "zhor" occurs, when several liters of oil are consumed during the short-term operation of the car.

Causes of increased oil consumption

According to practice, the first reason is the failure or damage of the valve stem seals installed in the cylinder head, due to which they do not perform their functions, and oil seeps through the valves into the cylinders, where it burns.

Another reason for the increased oil consumption of Lancer 9 is severe wear or stuck oil scraper rings installed on the pistons. Stuck or worn rings are unable to remove oil from the cylinder surface, and it enters the combustion chamber.

Determining the cause of increased oil consumption

Initially, the cause of the increased oil consumption should be determined. Indirect evidence of oil entering the cylinders is the appearance of a significant plaque formed on the candle skirt.

We recommend checking the condition of the valve stem seals by visual inspection only. Some car owners advise paying attention to the smoke of the exhaust and the presence of oil particles in it. But this method is not effective, since it will not give an exact answer, which requires replacement - caps or rings.

The condition of the piston rings is determined by measuring the compression in the cylinders. In their normal state, the compression should correspond to that specified in those. documentation. Only a slight drop is allowed due to the general wear of the cylinder-piston group. Also, when measuring, the compression in different cylinders should be the same, although a slight difference is allowed.

Having extensive experience in determining the cause of increased oil consumption, our specialists will quickly diagnose the engine and offer solutions to the problem.

Elimination of increased oil consumption

The operation of replacing the valve stem seals is not difficult, but without certain skills and a special tool, it cannot be done correctly. Also, when replacing the caps yourself, their incorrect installation is possible, which will lead to a further increased oil consumption by the engine.

Replacing the oil scraper rings with Lancer 9 is a technologically complex operation, since the engine is extensively disassembled: the cylinder head, sump, and piston group are removed. In some cases, a cylinder groove is needed to restore operability, which cannot be done in a garage.

If you notice that your car's oil consumption has increased, do not hesitate, contact us. Our specialists have sufficient knowledge and skills to solve the above problem. In addition, all the necessary spare parts, both original production and analogs, are available. Entrust your car to professionals!

Engine oil consumption for Mitsubishi Lancer 9

To date, the most common type of engine repair work on a Mitsubishi Lancer IX is the operation of replacing the oil scraper rings with the Lancer 9 and replacing the valve stem seals. This work is performed due to the oil consumption on the Lancer 9. And after this work, oil consumption completely disappears and the engine comes to life like new. And when the owner asks us, the Engine on the Lancer "Eats oil, what to do ?, we answer: Go through, change the piston rings and valve stem seals.

Elevated engine oil consumption for Mitsubishi Lancer 9 due to the fact that during operation, the piston oil scraper rings coke in the channels and stop completely or partially to remove the crankcase oil from the cylinder walls. Thus, the engine oil enters the combustion chamber of the cylinder and begins to burn together with the working mixture. Due to the presence of combustion products in the chamber, spark plugs begin to fail quickly, float engine speed on Lancer 9, if the rings do not fulfill their task at all, then the burnt oil begins to clog the honeycomb of the catalyst, and this is not at all cheap.

The main symptom Increased oil consumption on Mitsubishi Lancer IX, this is the ingress of engine oil into the combustion chamber, as evidenced by the presence of bluish smoke from the exhaust system when the engine is running at high speeds.

DEAR LANCER OWNERS , there is no need to harbor illusions on a car mileage of 150 thousand kilometers, that with oil consumption, you can do only by replacing the valve stem seals and nothing more,will not help!!!

If you change only the caps, the problem will not be solved, and with the subsequent work on engine repair on Mitsubishi Lancer 9 with the replacement of the piston rings, the work on replacing the caps will be repeated. And the costs incurred in the initial repair will be in vain.

Mitsubishi Lancer IX engine repair our specialists perform within two days. And all the necessary details for the elimination work increased oil consumption on Mitsubishi Lancer 9 is available in our warehouse.

Engine bulkhead on Mitsubishi Lancer 9 with oil consumption:

After carrying out diagnostic work on the engine and a verdict on the engine bulkhead on the Mitsubishi Lanser IX, the car gets on the lift. The first step is to prepare all the spare parts, because our mechanics perform the engine bulkhead on the Lancer 9 in two shifts.

1.Oil and antifreeze have been drained from the motor, the first step is to disassemble the Attachment Drive and remove the timing belt.

In the process of disassembling the timing, the condition of the Pump, the timing belt itself and the timing roller is checked.

2. Disconnect the exhaust system, remove the valve cover on the head of the block on the Lancer 9. Unscrew the bolts of the block head. Important: The head bolts on the Mitsubishi Lancer IX must be replaced, no matter how good they seem. Since the tightening force of these bolts is very strong, and if at least one bolt is broken off during the re-tightening process, then you can pay with the cylinder block in which part of this bolt will remain.

3. After the head of the engine block on the Mitsubishi Lancer 9 is completely freed from the attachment and unscrewed. The head can be pulled off and set aside. All attention first to the cylinder block and the Lancer piston group.

As expected, the pistons are heavily soaked in engine oil.

4. After the piston group is disassembled. The motorist proceeds to wash and clean the engine parts. As mentioned above, the cylinder blocks on the Lancer 9 Engine are very, very reliable and makes it possible to replace the piston rings without cylinder boring.

This engine has traveled more than 180 thousand kilometers, and the cylinder walls look as if only from the conveyor.

5. After a thorough inspection of the engine parts on the Mitsubishi Lancer 9, and washing and cleaning all the components of the cylinder block. The pistons are being prepared for assembly with new rings.

6. Installing new rings on the pistons and replacing the connecting rod bearings. The piston / connecting rod assembly is inserted into the cylinder of the engine block.

And after the oil pan is closed. The cylinder block 4G18 on the Mitsubishi Lancer 9 is completely ready for battle !!!

7 We turn to work on the cylinder head. On the block head, the gaskets of the intake and exhaust manifolds must be changed. To access the valve stem seals, the rocker shafts must be removed.

8. After removing the rocker arms, we begin to dry out the valves one by one. It is very important to do this procedure with extreme caution in order not to lose the spring clips (crackers).

9. And here is the same valve stem seal, on which we sometimes pin so many hopes, but it was not there))).

10. And here is the actual difference between the old and the new valve stem seal on the Mitsubishi Lancer 9, as well as on any other engine with a mileage of more than 150 thousand kilometers. The upper rubber part of the cap over time becomes non-elostical and stops tightly squeezing the valve stem and, accordingly, begins to let oil through the valve into the combustion chamber, and there are 16 such caps in the engine.

11. After reassembling all 16 valves and installing new valve stem seals, the mechanic cleans the seating plane of the block head, necessarily changes the block head gasket and assembles the engine back in reverse order.

12. After the engine is fully assembled, antifreeze is poured in, new spark plugs are tightened and the air filter is changed. The engine is started and at idle speed is warmed up to operating temperature. After the fans operate, the mechanic inspects the engine from all sides for leaks, checks the oil level and if everything is in order, the car is ready for operation with a renewed fiery heart. It is very important for the first time not to give the motor high revs, the further service life of the engine depends on how accurately the engine on the Mitsubishi Lancer 9 is run in.

Mitsubishi Lancer 9 inline engines with 4 cylinders of 1.3 and 1.6 liters with a single camshaft have a capacity of 82 and 92 horsepower, respectively, and a two-liter internal combustion engine, which is equipped with two camshafts, has a power of 135 horsepower. Difficult operating conditions for a vehicle in our country significantly reduce the resource of these rather powerful units and, over time, lead to difficulties with increased oil consumption. More on this later in the article.

The increased consumption of lubricant on the Mitsubishi Lancer 9 can be very serious. If the engine consumes 1-3 liters of oil per 1000 km, you will have to renew the fluid all the time. Thus, over 10-15 thousand km, more than 15 liters of lubricant will pass through the system.

In the absence of leaking oil seals, seals and gaskets, the reasons for the increased consumption of engine oil may be the following:

Increased oil consumption due to engine valve oil seals and wear of the guide bushings

Valve oil seals in motors lose elasticity over time and harden at high mileage. On one engine, they can serve only 50 thousand kilometers, while on the other they have to be changed after 150 thousand kilometers. It is worth noting that in conditions of a high mileage of a car, replacing oil seals may not solve the problem with a high consumption of lubricant.

The valve stem seals can wear out when overheated, both internally (invisible) and visible, which is detected by a temperature sensor. In the latter case, the problem lies in the failure of the cooling system, and in the former it is very difficult to diagnose the malfunction, although it is usually associated with poor fuel quality. With incomplete combustion of fuel, processed products form deposits and carbon deposits inside the combustion chamber, as a result of which the walls of the engine lose their thermal conductivity, and also provoke overheating, which is not detected by the temperature sensor.

Replacing the valve stem seals with your own hands without replacing the valve guides and troubleshooting may not give the necessary results and the Mitsubishi Lancer 9 engine will continue to consume oil. Considering the pumping effect that occurs when oil seals are installed on worn guide bushings, the oil consumption may even increase.

Oil scraper rings, one of the reasons for increased oil consumption due to wear, ring sticking, coking, scuffing on the cylinder block

One of the main reasons for grease is the occurrence and loss of mobility of the oil scraper rings when the Mitsubishi Lancer 9 engine overheats. When using low-quality fuel, the rings coke and stop functioning normally. In addition, when the coke clogs the grooves and the rings fall on it, they will wear more actively against the cylinder walls during friction.

Under conditions of mechanical wear, seizures appear on the liner, which also leads to increased oil consumption. Compression rings are also capable of creating a pumping effect in which the oil scraper rings become stuck and oil consumption increases. In this case, replacing the rings will not give a positive result if you do not bore the block to a new size, and also do not micro-grind the surface. It should be said that wear in the block can change the geometry of the cylinder:

1. Taper.
2. Ellipticity.
3. Ovality.

This causes a knocking sound when the motor is running. It happens to be connecting rod as a result of oil starvation.

Poor quality fuels and other reasons that increase oil consumption

What can the fight to reduce toxic emissions and sustainability lead to? Clearances must be optimized in the engine and its components. The smaller these gaps are, the faster they become clogged with products of improper combustion of fuel. As a result, high oil consumption begins, and manufacturers write about the need to use high-quality gasoline. The following reasons can aggravate the situation:

1. Machine operation at reduced speed.
2. Incorrect fuel used.
3. Long idle work.
4. Driving with a cold engine.
5. Systematic trips over short distances.

The factors listed above do not allow the motor to reach the operating temperature at which coke and carbon deposits are burned. The use of AI-98 fuel instead of the 92nd also contributes to the formation of carbon deposits, since high-octane fuel has a lower combustion rate. Anything that does not burn can form carbon deposits and clog the catalyst.

Engine ga4 oil consumption reduction additive

Increasing the viscosity of the lubricant or using other brands of oils usually does not give consistent results. Regular flushing of the system with special fluids before changing the oil makes it possible to keep the engine clean. In the course of flushing the engine, the internal surfaces are cleaned of deposits and carbon deposits, and also make it possible to decoke the rings and give them the same mobility.

The use of a special metal-ceramic additive for the engine helps to restore the resource and protect against wear. For example, Engine GA4 fluid can be used, which is designed for four liters of oil and does not change the physical characteristics and chemical composition of the lubricant.

Pro tips on how to reduce oil consumption on the Lancer 9

To reduce oil consumption on the Mitsubishi Lancer 9, it is necessary to replace the valve seals, oil scraper rings and guide bushings, but it should be borne in mind that replacing these elements by yourself does not always give a positive result.

The Mitsubishi Lancer 9 car is one of the most popular models of the beginning of 2000. It is distinguished by reliability and comfort, attractive cost. Thanks to this, he managed to win the recognition of many motorists. But this car has its drawbacks. They consist, first of all, in the fact that at the border of 150 thousand kilometers, he begins to eat oil. The amount of lubricant consumed depends on its quality, driving style, and frequency of maintenance.

Possible causes of increased oil consumption

If you find that your Lancer 9 is eating oil in large quantities, then there may be several reasons for this:

How to fix the problem of increased oil consumption?

So, you found out that your Lancer 9 is eating oil, and what should be done in this case? First of all, you need to get rid of malfunctions that lead to oil overruns. You can do this with your own hands, but it is still better to contact a service center that specializes in engine repair. Replacing the valve stem seals seems like a very simple job. But in fact, it has a large number of nuances that only specialists can know about. In order to carry out high-quality repairs, you will need a special tool, which not every motorist will have to afford.

If replacement parts are required, then it is better to opt for original parts. After all, the cost of replacing them is quite high. And the use of spare parts of poor quality can lead to the need for repeated replacement after a short period of time.

In addition to replacing rings, experts also advise replacing the crankshaft oil seals, candles, cylinder head bolts. The latter are disposable, so they can break if reused, leading to new faults and additional costs.

Video: causes of increased oil consumption

Mitsubishi Lancer 9-series - one of the popular models of the early 2000s was produced by the company from 2003 to 2008. This is a fairly reliable car, a real hard worker and at the same time quite comfortable. The combination of these qualities in a coupe with an attractive price allowed the car to win the appreciation of many motorists. However, it is not devoid of some significant drawbacks, one of which is engine oil (MM) consumption at the turn of 150 thousand kilometers. How much lubricant a motor is eating depends largely on driving style, the quality of the lubricants and the frequency of maintenance.

The increased oil consumption of the Mitsubishi Lancer during this run usually indicates the occurrence of oil scraper rings and wear of the engine head valve caps. Carrying out an operation to eliminate this malfunction is quite costly, but other malfunctions can also affect the zhor, which can be eliminated independently or at minimal cost.

Causes of increased grease consumption

To prevent the destruction of the contacting surfaces of the engine due to the lack of lubrication in the system, its level should be checked systematically. If the engine eats grease within 1 liter per 15 thousand kilometers, then you should not worry too much, this is a natural waste, which the manufacturer warns about. This may also be due to the driving style and operation of the car in difficult conditions (driving at high speeds, operating in urban conditions, driving at high speeds). In this case, you shouldn't be surprised that the car has an increased oil consumption.

The manufacturer offers a high-quality expensive MM for the Mitsubishi Lancer engine lubrication system, which many are trying to change to cheaper counterparts, which can lead to its significant burnout. The use of low-quality oil, in addition to its increased consumption, can lead to significant wear of the rubbing surfaces and, as a result, to overhaul the motor or replace it. Therefore, first of all, you should replace the lubricant with the one recommended by the manufacturer, and put the car in a gentle mode of operation. In many cases, this will help significantly reduce lubricant consumption.

The next malfunction that can affect the Lancer's oil consumption is damage to the gasket between the cylinder block and the crankcase. It is quite simple to identify this malfunction by visual inspection of the car engine. Where the grease seeps out, characteristic drips and deposits form. The malfunction is eliminated by replacing the sealing gasket. You can make repairs yourself, for which you need to remove the engine crankcase protection (if any) and unscrew the bolts securing the crankcase to the cylinder block. After removing the old gasket, the adjoining metal surfaces are inspected and cleaned, if necessary. After installing a new gasket, the pallet is screwed on and the engine protection is installed.

When operating a car without an engine crankcase protection, cracks, dents and holes may appear on it as a result of contact with surfaces. Through these damage, lubricant flows out, which must be constantly replenished. This is eliminated by replacing the Mitsubishi Lancer engine pallet. Oil consumption is also possible through a loosely wrapped drain plug of the engine sump or its worn thread or O-ring. Revealed by external examination, eliminated by replacing the part. Lubricant can also leak out through a loosely screwed engine oil filter.

Troubleshooting

If the visual inspection failed to reveal the MM leak, or after its elimination the lubricant consumption did not decrease, then most likely the matter is in the stuck piston oil scraper rings or oil scraper seals of the engine valves. With these malfunctions of the power plant of the car at increased speeds, a bluish smoke comes out of the exhaust pipe, turning into dark blue as parts wear, and the engine loses power. You should be aware that the consequence of this malfunction is the burnout of the catalyst honeycomb of the exhaust gas removal system.

Unburnt grease is deposited on the honeycomb of the catalyst, as it heats up, it burns out together with the cells, which leads to the destruction of this element. An exhaust system catalyst costs a lot of money, therefore, if an increased oil consumption in the engine is detected, measures must be taken to identify the malfunction and eliminate it. Automotive chemical manufacturers offer a variety of piston ring decoking products, guaranteeing 100% success. However, in most cases, attempts to decarbonize the stuck rings with the help of chemicals usually lead to nothing, but only lead to unreasonable financial costs and wear of parts.

You can check the condition of the rings and oil seals of the engine using a compressor. To do this, the candles are turned out of the head, and the compression in the cylinders of the Mitsubishi Lancer engine is measured. If it meets the technical specifications, then, most likely, the hardened valve stem seals do not completely remove the grease, and it flows down the valve stems onto the seats, and, burning, forms deposits and bluish smoke. If the compression is below the specified characteristics, then a small amount of clean engine oil (20-30 ml) should be poured into the cylinder, which should completely cover the cylinder piston. After that, the compression in the cylinder is measured again. If it has increased, then the matter is in worn out or stuck rings, cylinder or piston wear. Also, the cause of low compression and the ingress of MM into the combustion chamber can be deep seizures on the walls of the engine cylinder.

If, after adding MM and checking the pressure in the cylinders, the compression remains at the same level, then the malfunctions should be looked for in the valves of the cylinder head. The flowing off grease, when burned, forms carbon deposits on the valve discs and head seats, leading to their leaking or burning out.

Debugg

It is best to replace the oil scraper rings and seals at a service center specializing in engine repair. Despite the seeming simplicity, this operation is quite complicated and has many nuances that only specialists know. To carry out quality repairs, a specific tool is required, which costs a lot of money. To carry out the work, you will definitely need a bore gauge of a certain size to measure the ovality of the cylinders, a torque wrench, pliers and mandrels for removing rings.

When selecting spare parts for this repair, your choice should be stopped on original parts, since the cost and labor costs are quite high, and low-quality spare parts will nullify all efforts. Together with the replacement of the rings, it is recommended to also change the crankshaft oil seal, plugs and cylinder head bolts. Cylinder head bolts are considered a disposable part and can break off if reused, resulting in additional repairs and costs.

Why does the engine absorb a lot of lubricant

The repair of the piston group is a long and expensive process, which is better to entrust to professionals who can carry it out within 2 - 3 days. The selection of the necessary spare parts can be done by yourself, but in this case the service center may refuse to provide a guarantee for the work performed or will make it extremely minimal. Also, in this case, warranty repair may be refused, the repairmen will always have a link to the low quality of the supplied materials.

After replacing the rings and caps, the engine must be run in under gentle conditions, driving at high engine speeds should be avoided. In order not to face the solution of the problem of increased consumption of engine oil of a Mitsubishi Lancer car for as long as possible and to carry out an overhaul of the engine, it is enough to follow a few simple rules. To do this, you need to systematically check the MM level, use the lubricants recommended by the manufacturer and high-quality fuel. Also, you should not operate the car in difficult conditions, at extreme temperatures, and timely carry out maintenance.

Why does the car "eat" a lot of lubricant?

And a little about the secrets of the Author

My life is not only connected with cars, but also with repair and maintenance. But I also have a hobby like all men. My hobby is fishing.

I started a personal blog where I share my experience. I try a lot of things, various methods and ways to increase the catch. If interested, you can read it. Nothing more, just my personal experience.

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