Article

Motor oils with low viscosity

20 june 2011

Question: What are low viscosity oils?

MITASU OIL expert opinion: Low viscosity oils are motor oils with SAE viscosity grade 5W-20 and 0W-20. For over a decade, Japanese automakers have recommended the use of low viscosity oils for modern atmospheric engines.

Question: Should I follow the automaker recommendations to use low viscosity oils or does it look like collusive behaviour by the world's automakers?

What is motor oil made from?

20 march 2011

Question: Is synthetic motor oil made from crude oil?

MITASU OIL expert opinion: Most motor oils are made from a base stock and special additives. Let us consider the process of base stock production. Conventional oils are made from crude oil that is pumped from under the ground. Crude oil consists of a complex mixture of molecules that form chains and rings of various sizes and shapes. Long chains of carbon atoms produce a thick, slowly flowing viscous fluid, while shorter chains produce fluid that flows more freely.

In an oil refinery, crude oil initially undergoes a process of separation by vacuum distillation, based on viscosity characteristics. Long complex carbon chains are used to produce asphalt materials good for roofing tar and road works. The very short-chain and ring compounds of carbon are volatile and ideally suitable for production of gasoline and other petroleum products including motor oil.

Mitasu flush fluid

25 November 2010

Question: In what cases the purging should be used?

Mitasu Oil Expert Help: On any change of used oil type (to a new brand or to a new oil type of the same brand), it is desirable to use the flush fluid.

– Also the flush fluid should be used if you have any doubts in the quality of the engine oil already used (the engine makes noise, it is difficult to start or you have doubts because of the possible forgery of the acquired oil, for example, in a plastic canister).

Gear Oil

9 december 2010

Question: Where is gear oil used?

MITASU OIL Expert Help: Gear oil is used for greasing transmission elements. In the international classification it is named as Gear Oil (literally — “oil for gears”). These oils are used for greasing enclosed gears, as a rule, in manual gearboxes, transfer gear cases, including in power take-off devices, inter-axial and inter-wheel differentials and axles. The oil type named ATF (Automatic Transmission Fluid) and CVT Fluid (Continuously Variable Transmission) is used in automatic gearboxes and variable-speed gears.