Grease where you put it is just attracting dust & dirt that will eventually get into the BALL BEARINGS of the rollers.  It's the ball bearings that really need the lube.  Yes, it requires taking everything apart to get in there but just putting grease between the roller and the metal track it rides on is not the best solution.

On 2011-06-06, at 4:37 PM, Automatic digest processor wrote:

> I just cleaned / lubed all the sliding door guides a few weeks ago.  I used
> "White Lithium Grease" which is a good choice for this purpose.
> 
> For example:
> http://www.amazon.com/Panef-Corp-GS-20-White-Grease/dp/B000BXOFV6
> 
> Your local home depot or equivalent should have it,not sure about the local
> FLAPS.
> 
> I put it on the bottom slide / roller, and also inside upper track and the
> rear track.  Previously there was a "metal on metal" sound coming from these
> areas, a bit of this grease quieted the whole thing down.  I used very
> sparingly, since I didn't want a whole bunch of extra grease hanging around
> collecting dirt, so a little already made a difference.  I think using even
> more grease would provide even less noise.  To grease the rear roller, I
> didn't have to remove the cover, just put the grease in the right exact
> place with the 2 finger feel method:  one finger with grease on the tip, the
> other finger clean, as a guide to find the right places.  The bottom roller
> is a regular once-a-year maintenance area for me, clean and replace a bit of
> grease.
> 
> Reason for doing this?  I installed FatMat inside the sliding door, and
> wanted to quiet the rollers at the same time.

Cheers,    

Frank Condelli
Almonte, Ontario, Canada
'87 Westy & Lionel Trains (Collection for sale)
Frank Condelli & Associates - Vanagon/Vanagon Westfalia Service in the Ottawa Valley
Vanagon Stainless Steel Exhaust Systems
BusFusion a VW Camper camping event, Almonte, ON, June 09 ~ 12, 2011