Pour point, driven generally in the technical characteristics of the oil is obtained through laboratory tests and is the temperature at which the oil is almost completely loses its fluidity (mobility). In fact, the performance of engine oil is lost much earlier, even at much lower temperatures than when it has already lost the ability to be pumped regular system of engine lubrication. Thus, the selection of oils for use in the winter must be guided not by freezing point and viscosity class SAE. – For all brands of whether vehicles can use motor oil viscosity grades 5W-… and OW-…
by SAE? There are no restrictions on the use of engine oil viscosity grades of data are not available. These classes are also suitable for older and worn out engines. The exception is when manufacturers specifically forbid the use of these viscosity grades in Rila some design features of the engine. Example: The engine of SMZ 1300 Skoda Felicia, which are features of the mechanism of timing chain lubrication oil spray through the nozzle. – How to determine the quality of motor oil? There are two most common specifications for motor oil quality: – API – American Petroleum Institute – ACEA (SSMS) – an association of European manufacturers are currently specification API has the following classes:-Gasoline engine: SA, SB, SC, SD, SF – old” classes of SG, SH, SJ – acting classes so is, those requirements for the application which you can find instructions for the operation of vehicles ranging from about ’89 release.