Originally Posted By: zveroboy
Originally Posted By: chrisri
It's z2 spec that's used even in a Ferrari and Maserati. Shell Ultra 5w40 meets those requirements.
That's my future oil, for the two cars I own. I mean the latest Ultra, with "PurePlus Technology" marked on the bottle (GTL Technology) The old one is still on sale...
Do you have a link that explains this Z2 spec? Never found a description of it.
Other 5w40 oils that meet 9.55535-S2 are
-Castrol Magnatec C3
-Castrol Magnatec Diesel DPF
-Fuchs Titan GT1
S2 oils
However, they have MB229.31 (!?), not MB229.51!
Some of them just "meet the ...S2" spec (check the PDSs')... Castrol C3, for ex.
I'm using new Ultra in my wife's Punto Sport. mk1 with 1.4 16v Stilo engine. Great oil so far.
I have found no explicit description of this spec., but only handful of top spec oils are able to meet requirements (previously mentioned Ultra, M1 0w40). Selenia Sport 5w40 have actual approval.
To meet / recommended for is not the same as to have actual manuf. approval. That said I think it's good enough if it's coming from big players. If you are afraid to go with full SAPS i would look for MB 229.51 on top of Fiat one.
Cheers.