85 & 87 Octane - K-Bikes.com - Excellence in Motion
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post #1 of 11 (permalink) Old May 15th, 2007, 6:05 pm Thread Starter
 
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Arrow 85 & 87 Octane

Yea, I know it's practically sacrilegious! But on my recent spin across the country and back, I used ONLY 87 and sometimes 85 octane gasoline. Tell ya the truth...didn't notice a bit of difference in performance and my gas mileage actually seemed to improve the lower the octane rating was. Wacky, I know.
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post #2 of 11 (permalink) Old May 15th, 2007, 8:22 pm
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That just means you were running 146 horsepower instead of the usual 152. Maybe it took an extra 0.37 seconds to reach 140 mph.

Ken
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'13 Dark Graphite Metallic K16GTLD, 24K miles and counting...
'09 Magnesium Beige Metallic K13GT, 60K miles miles and counting...
'02 Mauve Metallic K12LTC, 106K miles and sold
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post #3 of 11 (permalink) Old May 15th, 2007, 8:27 pm Thread Starter
 
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Originally Posted by Meese
Maybe it took an extra 0.37 seconds to reach 140 mph.
Naw! That was the failing final drive that caused that issue.
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post #4 of 11 (permalink) Old May 16th, 2007, 4:51 am
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What I find amazing is these things will get 45 mpg if you set the cruise on 85 and leave it alone. I can't wait to see what the mileage looks like in the high, rarified air country.

-=grif=-
What was that middle thang?
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post #5 of 11 (permalink) Old May 16th, 2007, 6:53 am
 
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Originally Posted by grifscoots
What I find amazing is these things will get 45 mpg if you set the cruise on 85 and leave it alone. I can't wait to see what the mileage looks like in the high, rarified air country.
4,000 FT above sea level.
47 MPG/85 MPH
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post #6 of 11 (permalink) Old May 16th, 2007, 2:20 pm
 
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Tooling around the Ozarks, two lanes, 60MPH more or less, 52.2 MPG
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post #7 of 11 (permalink) Old May 17th, 2007, 1:22 pm
 
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Tooling around the Ozarks, two lanes, 60MPH more or less, 52.2 MPG
Running around the desert Southwest with the cruise control set to 80 all I can get is 36 to 39mpg. The bike only has 3200 miles on it, will this improve with time and mileage?
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post #8 of 11 (permalink) Old May 17th, 2007, 2:39 pm
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Originally Posted by josephthreedogs
Running around the desert Southwest with the cruise control set to 80 all I can get is 36 to 39mpg. The bike only has 3200 miles on it, will this improve with time and mileage?
It should. You probably still have hard start now and then.

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post #9 of 11 (permalink) Old May 17th, 2007, 3:18 pm
 
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Originally Posted by josephthreedogs
Running around the desert Southwest with the cruise control set to 80 all I can get is 36 to 39mpg. The bike only has 3200 miles on it, will this improve with time and mileage?
I may be able to test that theory next week, heading to Taos and if my Dunlop doesn't arrive (back ordered), I'll take the GT, might anyway even if my Sargent doesn't come in. Gas is blended differently not to mention 91 vs. 93 that I get locally. So far the worst I've gotten has been in the high 40's.
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post #10 of 11 (permalink) Old May 17th, 2007, 7:46 pm Thread Starter
 
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I really don't give a rip about gas mileage. I was just surprised at how well the GT performed with the lower octane fuels.

I've seen high 30s to high 50s, mileage-wise.
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