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Old 01-19-2013, 11:13 PM   #1
trululu96 OP
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80 octane vs 87 octane

hi guys I live in a country where the gas is really bad quality, should i fill my 96 honda xr 250 r with 80 oct or 87 oct, i mean will it make any diference in the performance ?
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Old 01-20-2013, 05:23 AM   #2
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I would run the 87 octane.
80 is real low, you more than likely will get spark knock and low performance.
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Old 01-20-2013, 06:50 AM   #3
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xr's are pretty tolerant but I would run 87 if i had the chance.
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Old 01-20-2013, 07:14 AM   #4
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Try posting the same over in regional forums under Latin America or NA trip planning-lots of exp. there in your country.
"If I had my life to live over,I'd dare to make more mistakes next time...I'd relax,I'd limber up.I'd be sillier than this trip, take fewer things seriously, I would take more chances... take more trips...climb more mountains...swim more more ice cream." Jorge Luis Borges, at age 85
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Old 01-20-2013, 08:31 AM   #5
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You'll need to specify WHICH octane measurement you mean.

Measuring one sample of gas will give a higher "research" octane than "motor" octane.

Most countries use the research octane number, so recommendations and pumps show a higher number.

In the U.S. and Canada recommendations and the pump show the average of the two (R+M)/2. So folks in the U.S. and Canadia are accustomed to a lower number than the rest of the world.

The difference between the U.S. and Europe may be about 4 or 5 octane, but even that will vary depending on the actual mixture.
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