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Old 08-18-2021 | 01:57 PM
  #20  
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1995 Monster T
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Originally Posted by Bud
It's been my experience that castor oil in nitro fuel leaves your piston a dark honey color. The more castor the darker the color.
Totally WRONG! castor oil has a real high flash point ICSC 1452 - CASTOR OIL (inchem.org) Any discoloring is from the lack of castor oil. Les oil lube will causes burring color with no castor oil 8-12 % oil lube. I run 15% nitro with 18% oil lube and 2% castor and get no burning or discoloring.
Last edited by 1995 Monster T; 08-18-2021 at 02:10 PM.
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