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Old 01-28-2006 | 12:32 PM
  #19  
jaka
 
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From: Upplands Vasby, SWEDEN
Default RE: 4-Stroking an ABC engine while break-in
Hi!
TheCastor oil we used (got from the AMA )at the 1995 pylonracing world championships at Muncie were leaving a lot of black goo in our engines! Fuel was 80/20 "Riche's Brew"!

I don't think we have inferior Castor oil over here in Europe as we use Castrol M, castor oil. But the fact is, Castor oil leaves a film (black or brown) inside the engine that is constantly building up during time on piston sides and in the combustion chamber...and this is no good!
Using synthetic oil ...or a combination of synthetics and castor oil prohibits all this carbon build up.

Regards!
Jan K
Sweden

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