* Engine oil is made on the basis of two big types of base oil :
Mineral base -Syntheticbase
*Mineral engine oils are from the bases of API groups 1, 2 & 3, and synthetic oils are from the bases of API group4 (PAO s) & group 5 (ESTER s ).
API : American Petroleum Institute - API is a big global standard organization.
-In its first 100 years, API has developed more than 7000
standards to enhance operational safety, environmental protection and
sustainability across the industry ...
* The advantages of groups 4and 5 (Fully Synthetic groups) compared to oil engine oils are many, including: long consumption life, high oxidation resistance, reduction of car engine fuel consumption, environmental compatibility, no corrosion, no friction, low SAPS ...
Disadvantages: They are expensive and not produced in many countries.
Important Note : semi synthetic motor oils are only blend of two base : ( %X mineral base oil groups 2 or 3 + %Y synthetic base oil groups 4 or 5 ) , and means depend on process & formulations . semi-synthetic is not API base oil group .
Engine Oil Yekta Group, since 2015, has been importing 4th and 5th generation car lubricants under the TOTACHI brand as an exclusive representative from Japan and through Singapore.
Due to the valuable experiences of the founder of the company regarding car lubricants and his reputation in the oil industry, the above brand was introduced and recognized in the market very quickly and the star companies of Setareh Iran (Iran Mercedes Benz), Iran Toyota (IRTOYA) and many Ramak khodro dealerships The car (Ramakkhodro) became a regular customer of the company.
* Activity in this case: Imports from Japan, Singapore, Austria and in the coming months will open a factory for the production of automotive lubricants based on Fully Synthetic.
At API performance level of engines, S means is spark system( gasolines) engines & C means is commercial and passenger cars diesel engines.
API C - Series Services Classification For Commercial Cars DIESEL Engine Oil :
The current and previous API Service Categories are summarized in
convenient charts. Vehicle owners should refer to their owner's manuals
before consulting these charts. Oils may have more than one performance
level. For automotive gasoline engines, the latest engine oil service
category includes the performance properties of each earlier category.
If an automotive owner's manual calls for an API SN oil, an API SP oil
will provide full protection. For diesel engines, the latest category
usually - but not always - includes the performance properties of an