Join Date: Sep 2011
Location: Rhinelander WI
Thanked 356 Times in 178 Posts
I have ran premium since new because it has no ethanol up here but i switched to regular that has ethenol and havent had any problems. But im not using the stock ecu mapping either.
2011 CBR250R, Modded 84 honda spree, 2013 CBR500R 2014 Grom
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