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Old 03-13-2008 | 09:41 AM
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wshall
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From: Marietta, GA
Default RE: Super Skybolt ARF
oneqwk96gt,

What are you using to break in your os91? I also have purchased the os FS91, but its my first 4 stroker and I want to make sure I dont damage the engine. I've been advised by the hobby store to use 20/20 100% synthetic fuel. Any comment?
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