I've been using this stuff since I was an F-15 jet engine mechanic in
the AF, 25 years ago.  The tube I got then has just now run out, and
I've bought another one to carry me for the next 25 years or so.....
I use it on everything I've rebuilt for that long.  O-rings, rubber
seals, hell, I even smear it all over paper or cardboard gaskets to
improve 'stick-tion' during assembly, assist with sealing over a
dry-fitted gasket and to ease disassembly when it's time.  Great stuff.
Highly recommend it after rebuilding over 100 VW engines of every type.

Mike B.

> Me? I use Dow Corning 33. A tube of it will last you and your children
> and your children's children's lifetimes.
>
> Jim