Well 10% ethanol is 10% too much in my opinion.
Yeah sure they will run on it but your fuel mileage will suffer, as will your engine over time.
I wouldnt put that crap in a lawnmower.
my mileage can vary from a great 20 kms to the litre steady cruising which equates to (calculator out)
3.9litres to a US gallon = 80 kms= 50 mpg US
riding real hard 14 kms per litre = 55kpg = 34mpg US
normally I get 16-18 kpl
I use only Premium 98 Aus which equates to 91 US octane unleaded
with zero ethanol.
Sounds like you have a problem and its not just poor gas, is your airfilter clean?
funny you say that, my mower says on the gas cap that if you use ethanol gas your warranty is void
2012 XCT Sunset Red - D&D's, Lloydz filter, ATS +4, Clearwater Krista's, Fusion LED kit, Rusty Jones single din, Sony head unit, PCV, BAB Tank Lift, BAB 1/4 Turn, Kenwood 400x4 amp, Soundstream 1000x4 amp, Focal 6.5s, DS18 tweeters, Polk Audio DSi5.25s, Rick Fairless mini apes
RIP my 2010 Victory XC-Skull bike (Totaled 10/21/16)
07 Jackpot Premium - white w/ flames(SOLD)
**Stop saying "how dumb can you be", people seem to be taking it as a challenge**