[Vwdiesel] Vwdiesel Digest, Vol 42, Issue 27 (fwd)

[LBaird119 at aol.com]

In a message dated 4/27/2007 3:49:17 AM Pacific Daylight Time, 
val at mongo.mongobird.com writes:

> Higher vis oil, combined with leaky rings, can aggrivate carbon
> buildup in the ring area.  This have the effect of increasing the
> leakage, by making the ring "sticky" in the groove.  A lighter oil
> may reduce the effect.  This is counter general wisdom, which has
> always been, higher viscosity oils in older engines.
> 
> 
  What I've noticed didn't have so much to do with the viscosity 
of the oil but its tendancy to carbon up or "amber."  Oils that 
leave more residue in the engine will carbon up the rings more 
in an oil burning engine, and make it burn even more.  An oil that 
disperses carbon better can actually clean out that carbon 
making for LESS oil consumption.  :-)
     Loren



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