"Compared to Group I, Chevron Group II offers significantly higher performance. Compared to Group III, Chevron Group II base oil offers no loss in performance for many important applications."
Not much of a performance difference between group 1 and 2 oils ??
I think you either mistated or misunderstood. Their is significant gap in performance betweeen grp 1 and Grp !!. The gap between Grp 11 and Grp 111 is minimal in performance and not apparent in many categories.
Thanks guys, yeah i learnt heaps from that site. Taught me more about things i already new. On other threads i was assuming Hydotreated neutral oil was group 1, now i know its not. Just from the tables, performance diff between 1 and 2 didnt seem like much but 3 and pao were miles away.