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Old 09-20-2010, 01:17 PM
  #6  
cutaway
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Join Date: Jun 2007
Location: Lake Worth, FL
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Default RE: fuel efficient engine?

FWIW, I've noticed running an FAI mix in an engine that will tolerate it (i.e. not very low compression engines) tends to run a bit longer than the higher nitro mixes because you usually lean the needle a few clicks on the FAI mix. Most larger engines will tolerate FAI fuel OK. I've got a little ST G.34 that is a screamer with a no-nitro 75(meth)/25(oil) FAI mix.