2.15.6. Scope and classes of viscosity
Viscosity of oils of petrol engines
| A. Oils working at big loadings and very fluid oils on norms of VW-50000 | B. All-weather oils on norm of VW50101 or the API SF or SG specification C. Seasonal oils |
Viscosity of oils of diesel engines
A. Oils working at big loadings and very fluid oils on norm of VW-50000 |
B. All-weather oils on norm of VW50500, according to the API CD specification or on norm of VWS0101 S. Ssezonnye of oil of the API CD specification |
As scopes of the next classes SAE are blocked, insignificant fluctuations of temperature can be disregarded. It is allowed to mix with each other oils of various classes of viscosity, adding it in the engine if the oil which is filled in in the engine does not correspond to external temperature any more.
Additional additives, all the same what look, it is impossible to add neither to fuel, nor to oils.
Prevention