Helpful information




Tolerances oil BMW

According to the specifications concern BMW, Car 1st, 3rd, 5th, 6th and 7th series petrol engines, are allowed to use only engine oils that have passed a special set of tests and officially approved by BMW. For vehicles of the same series with diesel engines allowed to use multigrade engine oils that meet the requirements for classification of certain classes of ACEA (according to the documentation on the vehicle).

If engine oil has passed the required tests and approved by concern BMW, appropriate clearance must be present on the packaging of the engine oil, as shown in the photo. Lack of information on the label clearly indicates the absence of a certificate from BMW.

BMW Special Oil Car oils for gasoline and diesel engines BMW — general classification. Special car oils — engine oil with a high degree of fluidity tend to viscosity SAE 0W-40, 5W-40 and 10W-40. Each brand of this engine oil is allowed to be used as the initial charge for BMW solely on the results of factory tests.

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PURPOSE LUBRICANTS

Main — lubricated, ie reduce friction and prevent wear, or to reduce it to a minimum by:

- form an oil film between the friction pairs;
— surfaces are completely separated by a layer of CM
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So, how to choose the right all the same engine oil for my car ?

Step one — find out the manufacturer’s recommendations

A time to choose oils, in fact, it was necessary to carefully study the service book to your machine . It is written there , what kind of oil is recommended to fill in his motor manufacturer . If you already got the car without the service book , the information you need you will find the official representatives from the official brand or parts suppliers exactly to your car brand . Do not worry — I will not convince you of the need to purchase the «official» oil — we need not make and not the manufacturer — we need parameters (standards, tolerances oils ).

Note — tolerances are developed for the motor ( or a narrow range ) , and not for the car as a whole. One automaker for their different engines can be (and is) a few tolerances , and it must be considered when selecting oil. More details — in an article about tolerances for automakers avtomasla .
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Engine oil plays a very important role in the car. Its main purpose — to provide the lowest friction of the moving parts of the engine, which is possible with a maximum leakage of the working cylinders. It is therefore important to choose a good oil, whose characteristics will achieve the best possible performance. Of course, there is one caveat — the oil must maintain their performance in the widest range of temperatures. And to achieve this rather than just.
The fact that that temperature , which gives the instrument panel , properly called coolant temperature , engine temperature and not , as is commonly believed . This figure and the truth is practically constant in the running engine is hot . Ideally, it should hover around ninety degrees. But oil temperature significantly exceeds his and may even go up to a hundred and fifty degrees. This will be determined by the manner of driving and traffic. To account for this factor , oil producers set optimal parameters to ensure maximum efficiency and minimum wear of engine parts .
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Good? Quality? Well, it’s understandable! But you are not in vain come to this site, right? Spoiled for choice avtomasla and want to know a little bit more?

So, in fact, the engine oil may or may not be suitable for your engine. And expensive, high-quality, but unsuitable AUTOOILS you destroy the engine much faster than, say, the best average quality oil. That’s what our site.

You will also find many useful tips for the regular maintenance of your car, and technical information on classifications of motor oils. The only thing you will not find here exactly — so it propaganda any manufacturers or brands of car oils.