Increased oil consumption in the engine. Opel Meriva. Increased oil consumption in the engine Basic information about the manufacturer, series and model of the vehicle. Data on the years of its release

Opel Meriva. Increased oil consumption in the engine

Reasons for high oil consumption

In the engine of any vehicle, lubricants, one way or another, are consumed over time without a trace. This is explained by the inevitable ingress of these funds into the combustion chamber from the cylinder walls, with blow-by gases or along the valve stems. Oil consumption depends on the design features of the vehicle.

Oil consumption rate
In traditional engines, the consumption should be between 0.1 and 0.3% of the total fuel consumption. If the fuel consumption is 10 liters, then the optimal level of lubricant consumption will be 10-30 grams of oil per 100 kilometers. Thus, it is quite acceptable if the consumption does not exceed 3 liters per 10 thousand kilometers.

For forced turbo engines, especially with several turbines, the permissible oil consumption level will already be from 0.8 to 3% of the fuel consumption. This oil consumption depends on the speed at which the engine is running most of the time. The more revolutions are made, the more fuel and oil consumption is observed. Each car owner can independently determine what constitutes an increased oil consumption for his car.

Incorrectly selected viscosity of engine oil and internal leaks as causes of oil waste.

Often, the presence of the fact of increased oil consumption can be due to the following reasons:

External leakage, which means leaks through oil seals and gaskets;
an internal oil leak called waste.
Any kind of leak must be repaired as soon as possible, as this is a matter of operational safety.

External leaks. What are they and what to do to find them?

An external leak is usually easily identified by droplets of oil under the vehicle.

Sources of external leakage:

Valve cover gasket. This type of leak is one of the most common. The top of the engine is one of the hottest parts of the engine, and the cushioning materials age quite quickly. In addition, the valve train is often disassembled during repair work. Removing and reinstalling the valve cover has an extremely negative effect on the durability of the gaskets. The gasket under the block head rarely leaks.
Pallet gasket. It rarely leaks, usually due to loosening of fasteners and aging of the gasket, but this type of leak is one of the most difficult to eliminate, since on some cars, to remove the sump, you must remove the engine itself.
Front cover gasket. A rare type of leak, but also unpleasant due to the tightness in the engine compartment of modern car models. This fact causes certain difficulties when replacing the gasket.
Oil seals. Leakage can also occur through oil seals: front and rear crankshaft, camshaft oil seal. Oil seals begin to leak oil from their natural wear. If the mileage of the car exceeds 150,000 km, then the oil seals should be given special attention. The front oil seal can spray oil on the timing belt. Rear oil seal leads to clutch oiling. Both are unacceptable. In the event of a leak at the junction of the engine and gearbox, the question arises where exactly the leak occurs, entailing such a huge number of problems. It is quite simple to determine this: you need to take a drop of the leaked oil and apply it to the surface of the water. If the droplet spreads like an iridescent film over the surface, then there is a leak from the gearbox.
Oil filter seal. The cartridge-type filter gasket can be punctured, especially when starting the engine at low temperatures. There can be two reasons: either a poor quality filter, or a malfunction of the oil line bypass valve.

There is also one rare case - a small simultaneous leak from all the oil seals and engine connections. This is often the reason why the engine literally "sweats", which causes the oil to leak out in huge quantities.

In this case, the leak is not related to the quality of the seals. This indicates too high crankcase gas pressure. The reason for this pressure lies in the condition of the internal parts of the engine. The increased pressure of crankcase gases is determined by active smoke from the crankcase ventilation pipe. This problem is eliminated by cleaning the crankcase ventilation system or, in advanced cases, by overhauling the damaged engines.

An oil level that is too thin or too thick is considered to cause the oil film formed by the oil scraper ring to be too thin or too thick.

Too thin a film does not seal the combustion chamber well, causing oil droplets and blow-by gases to break through into the combustion chamber. The oil burns - hence an unreasonably high consumption level arises. Too high a viscosity will cause the piston rings to float and also contribute to a too high flow rate. Contamination of the fuel system contributes to a decrease in the viscosity of engine oil; in this case, the fuel enters the oil along the cylinder walls, and the resulting mixture is actively combusted, causing more consumption than necessary.

Internal leakage due to valve stem seals

The most common types of internal engine oil leaks are valve seals, or valve stem seals.

The valve stem seals lose their elasticity over time and temperature, harden, wear out and crack.

Worn valve bushings allow the valves to swing and further break the valve seals. The oil, overcoming the weak resistance of the stuffing box, flows down the valve and enters the combustion chamber. You can diagnose the problem by powerful smoke when the engine is started - on a warm engine and when driving, the smoke is weaker.

Oiled spark plug threads are also a sign of wear on the valve stem seals.

Consider an internal leak due to compression and oil scraper rings. Leaks through rings are associated with wear, or loss of mobility (coking), or due to wear / destruction of piston ring grooves, or scuffing on the cylinder walls.
Burnout through the rings is accompanied by smoke in the engine. The exhaust pipe emits blue or gray smoke with a characteristic odor. It becomes especially noticeable under load when gaining or dumping gas. On cars with catalysts of the current generation, the smoke can be hardly noticeable, since the catalyst has time to burn off the residual oils.

What happens if excessive oil consumption is not eliminated?

In a number of cases of consumption that goes beyond the standardized limits, the engine lacks lubricant, which can become one of the reasons for the strongest contamination of the oil system, which can provoke high oil consumption and significantly knock your car down. Loss of lubrication leads to a drop in oil pressure, accelerated wear, a sharp reduction in service life and engine failure. Rebuilding or replacing an engine is very expensive, so excessive consumption of lubricants must be addressed as early as possible if the problem occurs if you do not want to go broke for a new engine.

Why is it so important to eliminate the problem of increased flow?

It should be said right away that with high engine wear and large leakage of lubricant, you will need to repair the engine. But very often, especially when the problem has just begun to manifest itself, there are simpler, and most importantly, inexpensive ways to solve problems due to which oil is misused.

The increased dimensions are a consequence of significant changes in the design. Previously, the entire front end was borrowed from the Corsa, but now the suspension from Zafira is adapted to a specially developed body for the Meriva. All this radically affected the driving performance.

Instead of a heart

The behavior of the new Opel Meriva has become more solid, although the signs of the former liveliness have not completely disappeared. On the autobahns in the vicinity of Hamburg, the quality of the worn-out surface of which, frankly speaking, left much to be desired by European standards, I was pleased with the unexpectedly good directional stability, which significantly reduced the tension on the sections without speed limits. In corners, I liked the moderate roll and the late tendency to drift the front axle. However, this car does not show much grace in cornering, because it is still a minivan. Instead of the previous electromechanical power steering, an electro-hydraulic one was used, which made the steering wheel more natural, although it is not necessary to put its information content as an example. Reliable, clear brakes contribute to the feeling of lightness. The downside of good agility is rather tight suspension settings, as a result of which the car rattled pretty much on all kinds of asphalt flaws and even just at road junctions. On the other hand, there were no long, rhythmic swaying waves on the uneven road.

But the new 1.4-liter turbo engine can be criticized. At idle, vibrations are transmitted to the steering wheel, so in the first second it seemed that a diesel engine had been slipped to us. The engine is noisy at high revs. And this despite the fact that, in general, noise and vibration isolation has improved significantly. The dynamic qualities were also disappointing. What to do, because the increased size also presupposes a significant, about 100 kg, increase in mass. The gasoline turbo engine was offered on the test in two versions: 120-horsepower with a 5-speed "mechanics" and 140-horsepower with a 6-speed. The label “turbo” in this case does not quite correspond to expectations: there is no question of any explosive nature of the speech. The motor runs smoothly, increases its power linearly, without any holes, but also without high rushes. Both engines perform best in the mid-range. At the red line, they become coarse. On the other hand, both options have modest appetites. As you know, the fuel consumption of cars with turbocharged engines strongly depends on the driving style, and therefore their "passport data" is often very different from what is actually obtained. But not in this case. Meriva turbo engines do not provoke the driver to lavish exploits.

In addition to the options we tested on the test, the line of engines includes an atmospheric 100-horsepower gasoline engine and two diesel engines with a power of 75 and 100 hp. However, there is no information yet about which of them will be supplied to Russia, as well as about their prices. It is only expected that the new Opel Meriva will appear in our country at the end of 2010.

number of doors: 5, number of seats: 5, dimensions: 4288.00 mm x 1994.00 mm x 1615.00 mm, weight: 1286 kg, engine displacement: 1398 cm 3, number of cylinders: 4, valves per cylinder: 4, maximum power: 100 hp. from. @ 6000 rpm, maximum torque: 130 Nm @ 4000 rpm, acceleration from 0 to 100 km / h: 13.90 s, top speed: 177 km / h, gears (mechanical / automatic): 5 / -, view fuel: petrol, fuel consumption (city / highway / mixed): 7.9 l / 5.1 l / 6.1 l

Brand, series, model, years of production

Basic information about the manufacturer, series and model of the vehicle. Data on the years of its release.

Body type, dimensions, volumes, weight

Information about the car body, its dimensions, weight, trunk volume and fuel tank volume.

Engine

Technical data about the car's engine - location, volume, cylinder filling method, number of cylinders, valves, compression ratio, fuel, etc.

Power, torque, acceleration, speed

Information about maximum power, maximum torque and rpm at which they are achieved. Acceleration from 0 to 100 km / h. Maximum speed.

Fuel consumption

Information about the rise of fuel in the city and on the highway (urban and suburban cycle). Mixed fuel consumption.

Gearbox, drive system

Information about the gearbox (automatic and / or manual), the number of gears and the drive system of the vehicle.

Steering gear

Technical data on the steering gear and the turning circle of the vehicle.

Suspension

Information about the front and rear suspension of the vehicle.

Wheels and tires

The type and size of the wheels and tires of the car.

Comparison with mean values

The difference in percentage between the values ​​of some vehicle characteristics and their average values.

Hello everybody. :) I decided to write my first impressions of the car. I'll make a reservation right away that I own it for a couple of weeks. Bought at the end of December 2016. So: Opel Meriva B, 2012 onwards, 1.4 turbo, 120 hp, 6 automatic transmission, 50 thousand km mileage. I will compare with the last Renault Laguna (she was in "full minced meat").

1. Appearance. I like a beautiful car. Especially when I washed it, it shone like that. If you look at different angles, then a different color))) In short, it turns out two-color. Toned ass - looks good. Bottom line: Opel is beautiful and the Laguna was beautiful, but in its own way. I am happy with Opel.

Small monocabs are in demand among people who spend most of their time in the city. Such cars are well suited for commuting to work or the store, transporting children to school or kindergarten. Traveling along these routes does not require high power motors and high speeds. Fuel efficiency comes to the fore.

That is why it is no surprise to anyone that the Opel Meriva model, created on Corsa units, is equipped with petrol power units with a working volume of 1.4 liters. To solve the tasks assigned to the city minivan, the capabilities of these engines are enough.

Opel Meriva first generation

German developers did not become wise. The Opel Meriva A, which appeared in 2003, received only one engine with a volume of 1.4 liters. It was borrowed from the Corsa Z14XEP. The inline four-cylinder engine, equipped with the Twinport system, despite its limited volume, is able to provide good traction even at low revs. Power of 90 liters. from. turns out to be enough to accelerate a car with a gross weight of 1230 kg to 168 km / h. The speedometer hand reaches 100 km / h in 13.8 seconds. Realizing that the possibilities of the Z14XEP are limited, the creators of the first generation Opel Meriva did not equip the car with an automatic or robotic gearbox, limiting themselves to a five-speed mechanics.