Worldwide I'd guess: Mobil, Shell, and Castrol, in that order, ships the most engine oils. Mobil is the popular choice in this country, at least for full syns, and they do ship a lot of conventional oil as well. Shell has the Pennzoil Quaker State Rotella brands.
Originally Posted by edyvw
Originally Posted by Zolton
Originally Posted by Trav
GTL is full synthetic using the Fischer-Tropsch process which was the original full synthetic process and a grp IV
Great post, but GTL is Gruppe V -"other"
Group V is not "other." Group V are Esters.
GTL is group 3 ---> http://gasprocessingnews.com/featur...es-clean-base-oils-from-natural-gas.aspx
Group 5 is anything not covered in groups one through four. Most of the time its esters, but not by definition. "Group V base oils comprise all base oils not included in Groups I, II, III or IV. Therefore, naphthenic base oils, various synthetic esters, polyalkylene glycols (PAGs), phosphate esters and others fall into this group." machinery lubrication magazine
Originally Posted by edyvw
Originally Posted by Zolton
Originally Posted by Trav
GTL is full synthetic using the Fischer-Tropsch process which was the original full synthetic process and a grp IV
Great post, but GTL is Gruppe V -"other"
Group V is not "other." Group V are Esters.
GTL is group 3 ---> http://gasprocessingnews.com/featur...es-clean-base-oils-from-natural-gas.aspx
Group 5 is anything not covered in groups one through four. Most of the time its esters, but not by definition. "Group V base oils comprise all base oils not included in Groups I, II, III or IV. Therefore, naphthenic base oils, various synthetic esters, polyalkylene glycols (PAGs), phosphate esters and others fall into this group." machinery lubrication magazine