Saya mau tau Minyak galian dari Pelincir. Jelaskan dalam bahasa melayu

This term is used to encompass lubricating base oil derived from crude oil.  The American Petroleum Institute (API) designates several types of lubricant base oil identified  as:

Group I - Saturates <90% and/or sulphur >0.03%, and Society of Automotive Engineers (SAE) viscosity index (VI) = >80 to <120

- Manufactured by solvent extraction, solvent or catalytic dewaxing, and hydro-finishing processes.  Common Group I base oil are 150SN (solvent neutral), 500SN, and 150BS (brightstok)

Group II – Saturates >90% and sulfur <0.03%, and SAE viscosity index >80 to <120

- Manufactured by hydrocracking and solvent or catalytic dewaxing processes.  Group II base oil has superior anti-oxidation properties since virtually all hydrocarbon molecules are saturated.  It has water-white color.

Group III – Saturates > 90%, sulfur <0.03%, and SAE viscosity index >120

- Manufactured by special processes such as isohydromerization.  Can be manufactured from base oil or slax wax from dewaxing process.

Group IV – Polyalphaolefins (PAO)

Group V – All others not included above

Such as naphthenics, PAG, esters, and etc.

In North America, Groups III, IV and V are now described as synthetic lubricants, with group III frequently described as synthesised hydrocarbons, or SHCs.  In Europe, only Groups IV and V may be classed as synthetics.

The lubricant industry commonly extends this group terminology to include:

Group I+ with a Viscosity Index of 103 - 108

Group II+ with a Viscosity Index of 113 - 119

Group III+ with a Viscosity Index of >= 140

Can also be classified into three categories depending on the prevailing compositions: