[urq] Audi Sunroof Lubricant

[AF]

To all you super techies out there, refusing to pay $35 for 150ml of Audi
brand sunroof lubricant, is there some aftermarket waterproof grease that
would work for the sunroof mechanism on my B6 A4 and hopefully on my power
antenna for my UrQ. Any european listers rebuilt their motorized antenna
(aerial)? We can't get Castrol olit CLS here in the US AFAIK. Thanks.

Andrew Finney
1985 UrQ w/ power antenna and 8 cylinders.