Every motorist wants the engine of his car to serve flawlessly and for as long as possible. However, not everyone knows what factors affect durability, and therefore they often believe information that is not actually true. We will tell you what myths exist about this and why you should not listen to them.
Table of Contents
Myth #1. Long warm-up at idle is good for the engine
Starting with a cold engine quickly wears out the power plant and damages the automatic transmission – even a beginner knows this. This is probably why some drivers sincerely believe that the longer the engine warms up, the better. And they drive it for 15-20 minutes at idle. But such diligence is also extreme and harmful no less than not warming up.
The fact is that the engine without load at idle warms up rather slowly. Plus it wastes fuel. But this is not the main thing. The main danger is the appearance of scuffing on the cylinders during idle operation. As well as uneven distribution of oil, as a result of which it can enter the combustion chamber.
Experts advise warming up the engine for several minutes, and then starting to move at low speeds, gradually increasing the load. Then the power plant will reach operating temperatures faster and safer.
Myth #2. The best engine is naturally aspirated
Many motorists really consider it an ideal option. Say, it does not create problems and lasts longer, because it does not have a turbocharger. And since the design is simpler, the engine breaks less often and less.
So it was until recently. However, now some motors sin with other shortcomings. For example, a specially designed intake / exhaust manifold is installed in the Volkswagen aspirated. Because of it, the engine begins to intensively absorb oil already after 50 thousand km.
Plus there are problems with oil scraper rings. And the aspirated Hyundai and Kia have an unpleasant property to suck catalyst microparticles into the cylinders, which quickly leads the engine to failure and overhaul. So the reliability of the aspirated is now determined not by its design, but by other components of the power plant.
Myth #3. Active idle
The engine cannot be damaged by active work during a stop – many drivers are convinced of this. Say, there is a thermostat that regulates the operating temperature.
But the task of the device is to limit fuel consumption when the car is idle. And in itself, idling is very harmful to the engine. The oil loses its properties, liquefies and enters the combustion chambers in large quantities. Gas exchange is also disturbed, and rubber elements such as pipes and seals become tanned.
There is another danger – detonation. When an overheated engine receives additional load at the beginning of the movement of the car, there is a sharp change in temperature. As a result, detonation occurs in the cylinders, which creates a sharp load on the piston group. Frequent standing still with the engine running accelerates the likelihood of engine failure and brings the need for overhaul closer.
So if you do not want to lose the engine ahead of time, try not to let it idle for a long time.
Myth number 4. Timing chain drive is more reliable than belt drive
This opinion is shared by many motorists. But experts say it’s wrong, and here’s why. A couple of decades ago, the chain drive was really stronger and more reliable. But in an effort to make the design lighter, automakers began to use thinner and therefore less durable chains.
During the operation of the car, they stretch faster and require replacement. And to a large extent, this is facilitated by the drivers themselves, when they forget to warm up the engine before starting to move.
Myth number 5. AI-95 prolongs engine life
Many drivers are sure that it is better to use the AI-95, even if the manufacturer recommended the AI-92. Say, this is a higher quality fuel and therefore provides a longer operation of the power plant.
But it’s not. High-octane fuel contains more additives that can evaporate in hot weather. As a result, the fuel loses its qualities and therefore does not have the expected effect.
Myth number 6. The lower the mileage, the better the engine
If you drive less often, then the motor will live longer – this delusion is still shared by many motorists. At the same time, they forget that the current traffic and the past are heaven and earth.
The engine breaks down faster not from the kilometers traveled, but from ragged driving in urban conditions. Endless traffic jams, frequent braking and jerking from a place – all this kills the power unit much more than driving at a more or less uniform speed.
Myth number 7. The more expensive the oil, the better it protects the engine
Here it is worth recalling the features of pricing. And the price of oil is formed taking into account many components: the complexity of production, advertising costs, brand awareness, etc. So a high price is far from an indicator of the quality of engine oil.
It is necessary to focus not on the cost, but on the performance of the liquid. And select the oil in strict accordance with the recommendations of the manufacturer of the power plant.
Myth number 8. Turbocharged engine is worse than atmospheric
The origins of this statement are the 80s of the last century, when mass production of such motors began. Indeed, the turbines were mercilessly criticized for their unreliability. And all because these were the first, not very successful experiments. Manufacturers simply installed turbines on conventional atmospherics.
Many years have passed since then, and today a turbocharged engine is a complex installation with reinforced connecting rods, pistons, often with its own crankshaft. In addition, the engines are equipped with an original piston cooling system, designed taking into account the design features of such an installation, and special cylinder heads. And the parts are made from materials that are more resistant to high temperatures. So it is unlikely that turbocharged engines today are much inferior to atmospheric ones.