I was being sarcastic about the mechanical airbag thing.
Do your own research on the oils, there is plenty of info on the web.
Alfa don't always know best, the reason they recommended 10w-40 was becasue at the time they had a marketing tie-up with Selenia, and Selenia made 10w-40.
Now Selenia manufacture 5w-40 have a guess at what Alfa recommend.
The handbook also says to get the cambelt changed every 72k, but I bet you don't follow that service interval.
For your information I have had loads of experience of Alfa's, both working on them and driving them, I also studied lubricants and lubrication as part of a college course.
I only posted on here as I wanted to help people, I really don't know why I bother.