Top Five Car Engine Problems Explained

PROBLEM No 4. MOTOR OIL VISCOSITY

Question: Is viscosity really one of the most important characteristics of the motor oil? 

Reference of MITASU OIL expert: The ability to provide liquid friction, hydrodynamic friction in bearings and, hence, their normal operation depends on oil viscosity. The oil viscosity has an impact on the wear of the crank shaft necks and bearing inserts, parts of the cylinder-piston group. In case of the optimal oil viscosity the reliable gap seal in the cylinder-piston group is provided.  

Question: How do all-season motor oils operate and how do they provide the constant set viscosity at any temperature? 

Reference of MITASU OIL expert: The viscosity decrease in operation in case of thickened (all-season) oils occurs as a result of mechanical, thermal or thermal-oxidative destruction of viscous polymer additive agents.

Question: What danger does the motor oil viscosity decrease constitute? 

Reference of MITASU OIL expert: The following are the results of operation with low-viscosity oil: melting of bearings, scuffing of the parts of the cylinder-piston group, breakdowns of the crank shaft. The high quality of thickening additive agents used by MITASU OIL CORPORATION, Japan, is a guarantee of your engine protection from the oil viscosity decrease during its operating life.