[Carren]

What do people use to lubricate their window rubbers? Would any silicone spray product be ok for this purpose?

[Copout]

In have tried most things and the best thing I have found was to use 'Dubbing'. It had been some years since I used it on my tramping boots but found it was still in good condition and did the trick.
Russell

[Zukiwi]

I seem to recall that Dubbin is a wax, oil and tallow-based product, not sure if it's a petroleum oil though. I think I'd prefer to avoid that on rubber and maybe use a silicone instead.

Cheers
John