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

[James Hansen]

I have very similar results using of all things 15-40 rotella T in the 
stock car motor.

I use it because of the high pressure additives and the big stupid flat 
tappet cam with stock valvetrain we are forced by rules to run.  Cam 
longevity is much greater with heavy duty diesel oil (has zinc) than 
most other stuff.

On teardown, other than ills from a series of "doh" moments in it's last 
two years (bent rods etc), the interior right up to the rings is 
shiny... and this motor has had it's arse run off.  It's clean and 
shiny, devoid of black goo, and it's rings are tired, and has run a tad 
rich all it's life.

I've assisted in other surgeries running 20-50 quakerstate and it was 
not pretty.
-james

LBaird119 at aol.com wrote:
> In a message dated 4/27/2007 8:32:45 AM Pacific Daylight Time, 
> val at mongo.mongobird.com writes:
> 
>> That could be.  The way I've heard it described is that the lighter
>> vis keeps a more turbulent flow in the boundry between the rings
>> and lands.  Loren, you're suggesting that it could be a more chemical
>> than physical effect.  I don't know but I could be convinced either 
>> way.  Hence the interest in peer reviewed articles.
>>
>> Val
>>
> 
>   A friend's neighbor bought a van cheap because it used a LOT 
> of oil, like a quart every 50 to 100 miles!  He put synthetic in it. 
> Had to add a few quarts then it quit using.  Ran it a couple 
> thousand, put good dino back in it, drove it a while and sold it 
> for a heafty profit.  Stuck rings due to carbon and the synthetic 
> cleaned it out.  Engines I've run Cennex in and torn down only 
> had the slightest ambering near rings and exhaust crossovers, 
> otherwise clean as if it'd been tanked!  No brown connecting rods 
> and yellow pistons, just cast gray and semi shiny aluminum.  :-)
>   I figure both tend to clean out more carbon than they contribute 
> while burning (low ash or with syn, doesn't burn at that temp) thus 
> cleaning up the mess.  :-)
>      Loren
> 
> 
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