Post by
szh »
https://forums.nicoclub.com/szh-u149.html
Thu Sep 13, 2007 8:58 am
Summary: Mobil 1 Synthetic 5W-30 will be perfectly fine for your car!
Generally speaking, the "SJ" in the manual means you can use anything that is "SJ or higher", and, as I recall, the Mobil 1 Synthetic is SL, so it is a good API grade to use.
I think in the manual Infiniti recommends "5W-30 Energy Conserving", but you can easily use 10W-30 or 10W-40 or even the Mobil 1 0W-40 (which is what I like), since they all meet the API grade requirement.
As far as I recall, 10W-30 would also classify as "energy conserving", and the Infiniti manuals says that it is okay to do this, but this would only be recommended in summer months or if you are in southern US areas in the winter.
Z