Echo Trimmer Fuel Octane

lawnguy1July 7, 2010

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.



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Are you sure it's the 85? I guess different states have different blends? In my area E85 is ethanol blend and 87 is usually non-ethonal?

Yes, ethanol blends affect preformance, ethanol burns cooler and don't have the Btu of non-corn gas. So IMO anything without ethanol is better not to mention the lack of miosture in ethanol blended gases which over time if left in your trimmer during storage will eat up the rubber seals by deterioration.

    Bookmark   July 7, 2010 at 7:39PM
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I would use 91 just to be safe. Best without alcohol.

    Bookmark   July 7, 2010 at 8:50PM
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I've used 87 in my Echo trimmer for going on 10 years with no problems....

    Bookmark   July 7, 2010 at 9:02PM
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dmullen(Southern CA)

I used 87 in all my outdoor tools but one day, the shop asked what I use. When I told them 87, they said to switch to premium.

Apparently, it must be a better quality or something in California. Very little difference in cost but they said it will prevent many problems in the future.

    Bookmark   July 7, 2010 at 10:57PM
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