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Old 04-19-2010, 01:02 PM
Join Date: Mar 2010
Location: Denver, CO
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Default RE: engine/fuel question

And just because I'm learning I'll ask. The 10/15% rating is the amount of nitro in the fuel? Meaning 15% should have more kick or am I way off base here? Also for a relatively new engine should I be doing anything specific to it on a regular basis? Should I stay with the 10% vs 15%? Just curious.