I had my first service the other day and the dealer has put 10w60 oil (Helix Ultra racing) in my Abarth 500, instead of 10w50 as specified in the manual, which does not meet the C3 standards. Its the same dealer i bought the car from and since they are offering me a 5 year full warranty i think i'll keep that oil in the engine for the next 6 months.
The dealer should use 10w50 and nothing different. Why do these tosspot dealers think that they know better than the manufacturers??????