Since Ive had all day to dwell on it (and clearly fancy a public conversation with myself
) I though I might expand on the above.
The info in the table tells a few things, which indicate certain qualities.
For:
Nearest to factory fill/manufacturers choice/benchmark
Syntium 7000 0w40
Quartz 9000 0w30
Tappet/ cam protection (higher zddp levels)
Supersyn LL 0w30
Quartz 9000 0w30
Fuel economy (lower hths and cold viscosity, excellent base oil(s))
Supersyn LL 0w30
Long drain intervals (higher tbn)
M1 FS 0w40
Cold starts (lower cold viscosity, higher VI)
Supersyn LL 0w30
Quartz 9000 0w30
M1 FS 0w40
Worn/noisy engine (thicker viscosity and higher hths, preferably higher zddp)
Supersyn 5w40
8100 Xcess
High rpm / harsh driving protection (higher hths, excellent base oil(s))
M1 FS 0w40
Helix Ultra 5w40
8100 Xcess
Or any combo of desired behaviours...