There are many tips and advice motorists and professionals. You can hear them, but to blindly rely on them to be. First because each engine has been designed for their operating conditions and its lubricating substance. In recent months, New York Giants has been very successful. Themselves lubricants also are designed for their modes of operation. So, we explain everything in order.
First you need to read the manufacturer's recommendations engine. What kind of oil he recommends and why. For example BMW plant to fill the engine of his car BMW 525i 1990-1991 Release recommends Castrol Magnatec SAE5w-c3 40 or Castrol Magnatec SAE 10w-40 a3/b3. What kind of oil? Castrol Magnatec oil itself has a unique microparticles Intellegent Molecules, their task is to stick to the metal parts of the engine and form a protective film that prevents the wear and tear. SAE – Community is a standard of Automotive Engineers, formed in 1905. Numbers and letters reaching him say on the viscosity: 5w – winter temperature is 40 – year-old. This border within which the oil is the right consistency, ie liquid.
For the viscosity followed by another letter or a letter with the figure – is the applicability of oil. The letters A – gasoline engines, B – Diesel (number 3 in this case points to one of 4 classes within the category of A / B). The letter C indicates that the oil complies with Euro-4 toxicity. These oils are designed for use with catalytic converters and particulate filters. There are 3 categories of this type of oil.