Well I am not sure that I can say they don't use what they are told in the EU? I have worked in Germany, Denmark and Sweden. You run what they tell you to there, no different then here, you have engine issues, they want to see all the receipts if you didn't do it at the dealer.
I meant 5w-40 vs 5w-30, not oil that is not approved. I think they left small back door - ACEA C3 oil can be used.
And is getting confusing because manual says we can use also Fiat 9.55535-S1 approved oils which corresponds to ACEA C2 in this case.
POWER TRAIN TECHNOLOGIES/ FIAT GROUP QUALIFICATIONS
FIAT 9.55535-G1Qualification for gasoline engine lubricants granting fuel economy and extended drain
FIAT 9.55535-G2Qualification for gasoline engine lubricants with standard characteristics.
FIAT 9.55535-H2Qualification for gasoline engine lubricants, granting high performances and high viscosity at high temperatures
FIAT 9.55535-H3Qualification for gasoline engine lubricants granting very high performances.
FIAT 9.55535-D2Qualification for Diesel engine lubricants with standard characteristics.
FIAT 9.55535-M2Qualification for lubricants with extended drain
FIAT 9.55535-N2Qualification for lubricants with a very good characteristics for turbocharged engines, Diesel and gasoline, with extended drain.
FIAT 9.55535-S1Qualification for Diesel and gasoline engine, with exhaust treatment system, lubricants, granting fuel economy and extended drain.
FIAT 9.55535-S2Qualification for Diesel and gasoline engine, with exhaust treatment system, lubricants, with extended drain..
These qualifications define the characteristics to be complied with by the lubricants used in engines with Otto and Diesel cycle for the first time of filling and during service. The standard is formed of a series of tests in the laboratory and on the engine to assess the performance level of lubricants.
The laboratory tests qualify the lubricant evaluating the viscosity, cold yield value, tendency to produce foam, corrosion on copper reed, behaviour with rubbers and resistance to oxidisation.
The engine tests assess the performance levels of lubricants in terms of sticking rings, deposits on pistons, wear and also oil consumption of certain diesel and petrol engines which are the most representative of Fiat Auto’s most advanced technologies.