Can anyone give any positive or negative feedback from experience from oil additives such as TUFOIL???

I now know that BMW manual says 'no no' to any types of additives, but I would like an explanation to that reasoning if there's any logical one.

Still, I was very happy with TUFOIL on my previous turbo car before I got my 325.

thanks :wave:

Well the theory goes that, if you use a premium oil to start with then you wont need any of these additives. Some of them are just snake oil anyway.