Larry
 
Thanks for letting me know... I have been using Rust Check, sparingly (to avoid all rubber), until I got a definite opinion about that.  A salesman also denied it, but just today at AMP (local FLAPS) I noticed that the 4L jug of Rust Check only claims no harm to plastic, electrical, glass and paint, but makes no mention of rubber.  I'd say their silence on point is more telling than any denial... If Rust Check does attack rubber, it still does an excellent job on rust. The stuff does creep very well into nooks and crannys and even the tightest seam. (Were are the crannies on a Westy? ; )  )

Just a thought:  What if one were to spray exposed rubber with silicone before oiling, to protect it from the oil???

Larry, in your shoes, I'd avoid rubber wherever possible with Krown also, seeing as they are apparently spawned from the same minds (haven't seen the Krown product in NB yet).  

JGS 84 Westy 1.9 WBX
  ----- Original Message ----- 
  From: Lawrence Johnson 
  To: vanagon@GERRY.VANAGON.COM 
  Sent: Tuesday, August 29, 2000 6:05 PM
  Subject: Re: Rust protection - Oiling - caution

  Jean-Guy. 
  Rust Check also softens rubber (but they deny it). I don't know about Krown. 
  I have used chain saw oil (winter weight) mixed with kerosene (to thin it) but have not found any anti-rust additive (yet). I'm planning on buying a 4L bottle from Krown for this winters application. 
  -Larry (Ontario, Canada) 
    
  Jean-Guy Savoie wrote: 

    A number of references on the net speak of using MOTOR OIL for rust proofing. DON'T DO IT.  Aside from the stink, it will rot rubber (hoses, insulating pads, grommets, Door seals etc...) and some plastics. The conventional wisdom, here, is that transmission oil will not rot the rubber, but there is some smell and I suspect that the transmission oil might melt or disolve the OEM wax because it is so "detergent", but I don't know this for sure. Does anyone know any more about the subject?

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