Mercedes S-class W202

1993-2000 of release

Repair and car operation

Mercedes W202
- 1.2. The general data
   1.3. Maintenance service
   1.4. Keys
   1.5. Doors
   1.6. Seats
   + 1.7. Safety systems
   + 1.8. The salon equipment
   + 1.9. Driving
   1.10. An engine cowl
   1.11. The ventilation block, the conditioner
   1.12. Some councils at car purchase
   1.13. Changed numbers
   1.14. Purchase of the old car
   1.15. Durability of the car
   1.16. About parallelism of bridges of the car and the trailer
   - 1.17. Preparation of the car for winter
      1.17.1. Tyres
      1.17.2. The engine
      1.17.3. Oil
      1.17.4. The accumulator
      1.17.5. Ignition system
      1.17.6. A body
      1.17.7. Glasses
      1.17.8. Account materials
+ 2. Maintenance service
+ 3. Engines
+ 4. Greasing system
+ 5. Cooling system
+ 6. Heating, ventilation
+ 7. Ignition system
+ 8. Fuel system
+ 9. Transmission
+ 10. A running gear
+ 11. A steering
+ 12. Brake system
+ 13. A body
+ 14. An electric equipment
+ 14.2. Electroschemes

1.17.3. Oil

Oil change usually make in a binding to car run, instead of to a season. But as change oil on the average time in half a year why not to make it on the threshold of winter?

The overwhelming majority of modern engine oils – to some extent – all-weather. It is considered, it is necessary what to fill in that is offered the manufacturer in the car maintenance instruction. But winters happen different – both sljakotno-warm, and jadreno-frosty. And it is absolutely not clear, whether the manufacturer assumed that its car will be maintained in the conditions of the Russian winter, and that oil is required to it "more coldly".

If you have decided to deviate the instruction, at an oil choice it is possible to use simple reception of definition of its temperature suitability – for secure. We name this reception "a rule 35".

The designation of a class of its viscosity should enter into engine oil marks on scale SAE. For example: 15W-40. It means that the given oil on viscosity at minus temperatures meets the requirements shown to winter oils of a class 15W, and at плюсовых – to summer oils of a class 40.

Remember number 35. If from it to subtract "a winter" index of a class of viscosity, in our example it is 15 the size named in limiting temperature прокачиваемости will turn out, i.e. Temperature at which oil still keeps fluidity.

35 – 15 = 20. Means, oil 15W-40 can use at temperatures to–20 C.

Accordingly, the the less "winter" index of a class of viscosity, the oil is colder". 10W – to–25 C; 5W – to–30 C.

It also is "a rule 35". Simple and useful.