Octane number is the fuel ability to resist self-ignition during compression. The higher the octane number, the less likely the engine to detonate. Detonation is an excessively rapid combustion of a fuel mixture in the cylinder, in other words-explosion
The term "cetane number" is used for diesel fuel, which is sufficiently different from the octanoic number
The highest high-fuel, free-sale fuel is A-98 petrol. So it's better to pour it into the tank? This is incorrect because you should first examine what is written in the manufacturer's instructions.
What recommendations are contained in the instructions?
The manufacturer of a car in the appropriate section of the instruction always recommends either a range of octanic numbers or a specific octane number. The most common information on recommended fuel is duplicated in the form of a sticker on the inner side of the petrol tank. Sometimes the minimum octane number is specified, but the use of fuel with a higher octane number is allowed. For example, "91 +".
For the most modern cars, especially those equipped with a direct injection system, fuel selection recommendations are generally unambiguous. Therefore, if the manufacturer recommends that the car be fuelled with petrol with octane number 92, it is worth listening and not to pour 95 and, more so, 98 gasoline, since the program, the control of injection, is not optimized.
Myths, intrigues and additives
Additives are additives in the fuel or other technical fluid to improve the characteristics of the liquid. In Russia, the additives have been accepted to call everything that can (or cannot) be added to the technical fluids of the car. Due to the large number of counterfeit, harmful, and just useless products, the term "additive" received a negative connotation.
There is an opinion that in Russia "pure" is only the octane number 92, and the fuel with octane number 95 and 98 is obtained by applying the octanotor-fuel-enhancing octanotor motors. You can check it out only in the lab.
The term "additive" has acquired a negative connotation because of the large number of counterfeit and simple fuel additives in the market
The market-proofing of the octan-proofs has very different characteristics, and often these characteristics are more or less not in line with the stated. In addition to the increase in the octane number, such additives are intended to reduce the detonation, reduce fuel consumption and increase engine capacity.
There are cases where you can't do without additives. For example, if the car was loaded with bad gas, extraneous sounds appeared when the vehicle was operating, and there was a significant fall in power. Unqualified petrol can cause serious damage to the engine-and in this case the additive from the proven manufacturer can help.
Special 95
Frequently, online service stations at higher prices offer an improved 95 petrol, which may be called "Ewho" or "Premium", or something else. The company, which owns a network of gas stations, announces its cleaning properties, as well as a significant increase in the capacity if it is used. The declared capacity increase of 7-15% is not to be expected, of course. The main advantage of this gasoline is the cleaning properties. Sometimes it is possible to hear that additives, cleaning the nozzle and the valve engine, are rather aggressive and can lead to accelerated wear of the engine. In fact, this is not the case: the percentage of substance dissolving deposits in petrol is small, and the regular use of fuel with cleaning properties cannot damage the engine.
Or is it ' 98?
98 is intended for sports, high-force (usually turbo) or high-technology motors (for example, with special spraying on the surface of piston elements). It should be used exclusively on the recommendation of the manufacturer or the tuning company, which has a sports motor.
Often, the use of high-octane fuel tuning significantly changes the design of the serial engine, increasing first degree of compression
The use of high-octane gasoline in engines not configured for use could result in a local overheating in the upper part of the combustion chamber and the valves. The cause is too early for the fuel to be ignitable, the flame propagation is too rapid, not the appropriate degree of compression, in candles not suitable for this type of fuel, and in a number of other factors.
How do you get out of the bad fuel?
Visiting refuelling facilities on the principle of reputation of the brand may not always keep from poor quality fuel. The fact is that large firms often sell franchise to smaller companies or rent petrol stations. Lease conditions do not imply the retention of fuel suppliers. Hence, the quality of the petrol may differ.
Category "Premium-95" came to Russia from European system for labelling of petrol
It is not always easy to define your own filling of a large company, and the signs may vary depending on the brand. Some, for example, prefer to refute only at filling stations where there is a typical store (usually at large petrol stations are opened under the satellite brand, for example, "Sunflower").
To determine whether you are offering a counterfeit or not, you need to enter the manufacturer's website, such as Castrol, and find a detailed description of both the contents and the packaging features
The map of the location of own filling stations of major oil companies can be found on the Internet, on the official websites of the networks. It would be desirable to limit the number of refuelling stations and visit the same regularly, which would reduce the risk of acquiring fuel-efficient fuel.
Summary
The best way to prolong the life of the engine is to use the fuel with the recommended octane number at the inspected refuelling stations. The use of petrol with cleaning properties may extend the life of the engine, but this gasoline is not recommended for heavy-duty vehicles.
The 92-year-old petrol tank should not be used in high-technology high-technology engines such as the [ [ Volkswagen 1.4 TFSI]]
The engines of many vehicles officially supplied to Russia are being adapted for the use of 92 gasoline.
Unjustified use of high-octane fuel may cause serious damage to the engine and expensive repairs.
