I had my oil replaced and they put in Mobil Super 3000 5W-40. The manual says "with Multi Air systems using lubricants with features lower than ACEA C3 and SAE grade other than 5W-40 could cause engine damage". The spec for the oil used says it meets:
ACEA A3/B3, A3/B4 API SN/SM AAE (STO 003) Group B6
So no mention of ACEA C at all.
What should I do? The warning seems stern though the wording is odd, 'and' implying that the oil has to be both non ACEA C3 compliant and not 5W-40 to cause trouble, but it is probably just a sloppy writing, and they meant 'or' instead of 'and'. Should I change the oil asap or is it benign? The guys at the service are not changing oil since yesterday so perhaps that is not that big of a deal?
The engine is 1.4 Multi Air: a turbo charged petrol engine from Fiat.