There's little to no parts support for the .09. Running nitro above 20% really can taxi your glowhead. Plugs are even hard to come by. Yes, adapter plugs for standard longs work but not like the Cox glowhead does. You give up a lot of rpm's using adapter heads. I don't own the Medallion .09. I own the TD .09's. I run all of my Medallions including .049's on Powermaster GMA 10% nitro fuel and they run just fine with no needling issues. I personally don't use all castor because these engines like to varnish up rather quickly and hotter weather brings it on quicker. Sig Champion is 20% total oil 50/50 synthetic just like the Powermaster.
Topic: 09 cox fuel (Read 273 times)
