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  #11  
Old 30th December 2008
mithrandir's Avatar
mithrandir mithrandir is offline
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Well your reply got me thinking and I decided to start looking up whether or not there is ethanol in the gas here as I had not heard of any other alternative for MTBE. It seems that the state is moving pretty rapidly towards E10 and eventually E85, but apparently most of our gas is mixed with ethanol at the 5.7 rate which is usually called E6. California is different...go figure.

So if I assume that I am running E6 gas then they ethanol content is not really all that high, but could certainly make for poorer gas mileage compared to some others with the same bike in different parts of the country. That coupled with the cooler temperatures and that (as far as I have seen) 91 octane is the highest you can get here, I'm probably just fine.

Thanks everyone for your help.
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  #12  
Old 31st December 2008
southtexas southtexas is offline
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I used E10 as a generic term for oxygenated gasolines, khaskins, since someone else threw the term out there. I say oxygenated to imply low doses of ethanol as compared to E85, etc. I knew what they meant as did most, I'm sure. There are nearly 20 blends of regular, 87 octane, gasoline in the U.S. because of the various states/areas and their specific requirements as well as Federal requirements. Counting the three grades there can be up to 50 blends at some times of the year. It's DUMB in my opinion, and very costly for refiners, transporters, etc., but it seems to thrill the politicos and greenies. The oxygenate used since MTBE was removed from gasoline is ethanol and you can bet it is in a lot, if not all, Calif. gasoline.
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  #13  
Old 31st December 2008
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Two things I always add is a windscreen, and throttle dampener (Throttle Miester).

Adds 10 or more MPG on every machine Ive ever rode.

and I leave the E10 to the liberals who want think they can change a planets ecostructure.
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  #14  
Old 21st February 2009
tucsonjim tucsonjim is offline
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Just as a point of reference; I have an 08 883C with about 4K miles and have always gotten between 55-60 mpg here in Arizona. I added a large switchblade windscreen and after the last tank it measured 55 today when I filled up.
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  #15  
Old 22nd February 2009
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I have a 09 1200c that has rinehart crossbacks pc3 forcewinder intake wiseco pistons 10.5-1 compression and andrews n6 cams and i am getting about 36-40 depending on how hard i am running. i ride it pretty aggressive so i will be no where near what harley says just like they claim 79 tq but with mechanical loss i got 64 to start and with my upgrades i am still only at 80 hp and 76 tq still need my heads done but yes i have a 4.5 gallon tank and get gas by 115 miles every day
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  #16  
Old 22nd February 2009
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The tune of the bike can make a lot of difference to the MPG. When mine was close to stock I'd get around 120 miles on a tank. Since changing parts and tuning for power that's gone down to 105-110.

My maths aint great but consider that a Sportster will run reasonably OK with an air-fuel ratio of between 1:12 and 1:15. That is a 20% difference in the amount of fuel being taken into the engine which could equate to one engine getting 100 miles on a tank and another getting 120. I doubt the numbers really work out quite like that but its indicative.

Fox
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  #17  
Old 22nd February 2009
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Since I added the PC III I have to baby it to get 45 mpg, the average now is 39mpg. Bone stock it's best was 50 mpg. 07 1200R.
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  #18  
Old 22nd February 2009
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vettelover84 vettelover84 is offline
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Most of you have 1200's so my 883 numbers won't help but with my 4.5 gallon take. I get closer to 200 miles per tank. If its all interstate, I will get over 200 miles. The fuel light comes on at right about 150 miles.

It works out to no less than 50 mpg in town most the time, and best of 62 mpg going from Colorado Springs to Denver and back...

I ride it pretty hard too.
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  #19  
Old 22nd February 2009
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Quote:
Originally Posted by vettelover84 View Post
Most of you have 1200's so my 883 numbers won't help but with my 4.5 gallon take. I get closer to 200 miles per tank. If its all interstate, I will get over 200 miles. The fuel light comes on at right about 150 miles.

It works out to no less than 50 mpg in town most the time, and best of 62 mpg going from Colorado Springs to Denver and back...

I ride it pretty hard too.
Gas quality (E10 vs non-E10) and ambient conditions (like thinner air at altitude vs. sea level) can lead to large swings in mileage.

We normally get around 40 mpg on E10 near sea level, but have gotten 50-55 mpg at altitude, on non-E10... with 883s AND 1200s...
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  #20  
Old 22nd February 2009
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I ride just about the same as you do. Some highway some local roads. I have 3,800 miles on my 1200N and have averaged 44.29 mpg since I bought it. This includes low mpg when driving hard, 34.65 mpg on one tank, and riding on a road trip, 51.68 mpg on one tank.

My wife's 883L only has 1 tank under her belt all city and it was 48.37 mpg. If you want, pm me in a couple of months and I can update you on the 883L mpg.
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