I used 'Car go Seal-up' in my Benz before I did the head gaskets. Worked really well until I started to beat on it hard one day and the stuff let go. Didn't lose a drop of water in about 5 months. Probably be still working now if I didnt give it italian tune-ups every time I took it out.

Ben.

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Ben

'85 500 SEL
'85 928S2
'88 560 SEC
'90 750i