Echo Trimmer Fuel Octane
I have the Echo SRM 261T. Question on the fuel octane.
Most folks recommend 89. Four fuels available in this part of country. 85, 87, 89 & 91. Only the 85 and 91 don't have ethanol blended into it.
Does ethanol effect performance? Thinking on using 85 non-blended with the Echo 50:1 mix.