RE: Article about Castor Oil in R/C Report
That's what I'm thinking. Most that have read about competitive fuels know about Lubricin as an additive, but who knew it was castor based? Maxima says they add something to their Castor 927 to reduce carbon buildup. This is probably it.
Think about where Sig's castor comes from. They sell Klotz Techniplate which they buy bulk from Klotz.