The viscosity change of multigrade motor oils in service has been evaluated in a fleet representative of the present European car population. The evaluation covered air- and water-cooled engines, with conventional and integral gearboxes, and displacements ranging from 500-1750 cc.The effect of car, service, average ambient temperature, and type of polymer on the viscosity change of a lubricant has been estimated.The multigrade test oils have also been run in injector and bench engine tests in order to compare field testing results with laboratory techniques being developed.
Prediction of Viscosity Stability of Multigrade Engine Oils in Service
Sae Technical Papers
International Automobile Engineering and Manufacturing Meeting ; 1974
01.02.1974
Aufsatz (Konferenz)
Englisch
Prediction of Viscosity Stability of Multigrade Engine Oils in Service
Kraftfahrwesen | 1974
|Viscosity Prediction for Multigrade Oils
SAE Technical Papers | 1993
|Viscosity prediction for multigrade oils
Kraftfahrwesen | 1993
|SAE Technical Papers | 1955
|Engineering Index Backfile | 1955
|