Group II - the API CK-4 sulfur limit would stop you from blending with high proportion of group I as the additive package contributes most of the 4,000ppm maximum sulfur limit. Typically it would be 3,600-3,800ppm sulfur from the detergent (calcium sulfonate/magnesium sulfonate) and anti-wear package (ZDDP which contains sulfur).
In any case, Global group I availability is becoming less as refineries produce products such as Group II, II+, III, III+ to help meet the higher demands of the more modern oil specifications.
If you call Group III (hydrocracked) conventional then it would be Group II and Group III. In many parts of the world Group III is called synthetic.
Thanks for that answer. Makes sense.Group II - the API CK-4 sulfur limit would stop you from blending with high proportion of group I as the additive package contributes most of the 4,000ppm maximum sulfur limit. Typically it would be 3,600-3,800ppm sulfur from the detergent (calcium sulfonate/magnesium sulfonate) and anti-wear package (ZDDP which contains sulfur).
In any case, Global group I availability is becoming less as refineries produce products such as Group II, II+, III, III+ to help meet the higher demands of the more modern oil specifications.
If you call Group III (hydrocracked) conventional then it would be Group II and Group III. In many parts of the world Group III is called synthetic.
If you're asking about Rimula R4X i am quite sure it is Group 1, or at least i recall reading something about it on oil-club.ru.
It's an old school HDEO.
If you're asking about Rimula R4X i am quite sure it is Group 1, or at least i recall reading something about it on oil-club.ru.
It's an old school HDEO.
What is the chance that a conventional HDEO that is only API SL , E7 , CI-4, be a Grp II?
Is there a spec that could give me a hint it is II and not I ?