Other than mfg specs, seriously.
I looked at a bunch of new oils, and am not impressed.
Psychical specifications, UOAs, VOAs, chemistry etc what is RTS missing that other high HT/HS mfg spec oils deliver?
Pretend you already had plenty of Rotella in abundance. What and why would you seek out a different oil for VW 1.8T. It's not the only car in the family, so I don't want to get too fussy.
Twice a year changes.
I looked at a bunch of new oils, and am not impressed.
Psychical specifications, UOAs, VOAs, chemistry etc what is RTS missing that other high HT/HS mfg spec oils deliver?
Pretend you already had plenty of Rotella in abundance. What and why would you seek out a different oil for VW 1.8T. It's not the only car in the family, so I don't want to get too fussy.
Twice a year changes.