Hi,
debating with myself if I should go with Mobil 1 5W-30 or Shell Rottela
5W-40. Both do not have a 'Energy Conserving II' label on it while Outback manual requires such.Manual says that you could use other oil of it complies with API SH. Interestingly, Mobile facts sheet does not say that while Rottela claims it is okay with SH.
Question: is ECII just not significant (everybody use Mobil1 5W-30) or why manual requires it?
Any insight?
Cheers, Andy