I clean the tracks with Varsol, and then use White Lithium Grease on 
all the tracks.  I do a grease change twice a year like this.  The 
door stays quiet and very smooth.  I don't have any problems with 
dirt, etc.

Harry.

> One more time folks - what kind of lube works best to quiet the sliding 
> door? One thought of rubber wheels was interesting, but I don't think 
> anyone has made that work - have they? 
> 
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Harry Yates     Internet: hyates@BCIT.BC.CA Burnaby, BC
'90 Syncro Westfalia
'87 Golf Diesel