Actually, it doesn't damage alloys at all ~ that's why Mercedes decided to recommend it .

I've used it in horribly clogged Japanese tinfoil aluminum radiators and never a problem yet .

Hondas and Mazdas are famous for "uncleanable" aluminum radiators, not with citric acid mix they're not .

If this opens a leak anywhere, the leak was there already and waiting to do you dirt .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better