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So when I bought my Gunner and they were going over some basics with me one of the things they told me was to only fuel up on premium 91 octane. They told me to stick with 76,Shells and Chervron and kind of iffy on Costco gas. I almost always fuel up on Costco gas for the rebate i get back at the end of the year.

Whats your guys opinion?

Also when I was at Costco last I notice this ethanol sign that wasnt there last time I was there.
 

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Oh no, not another one of these threads, they are as bad as the oil threads. It doesn't matter, any name brand gas will be just fine. Polaris suggests premium but unless you have done any major mods then mid grade will work just fine. I also get the same gas mileage out of ethanol blended and non-ethanol, go figure.
 

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I've bought gas from Costco with three bikes now and have never had an issue. A retired guy down the street works there and he said when they get their gas delivered and they add all the additives at the tanks. I'd say give it a try and see how your bike reacts. My CCT hasn't had an issue...
 

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I have had only a couple of fuel problems over the last 45 years and both were easily traceable. One was a no-name shop caused some power problems and subsequent tank for another national cleared it right up. I didn't bother to figure out why.

In another incident I was having problems due to water in their tank and that was from a national. Tanks wear out and leak and in some cases fuel leaks out and in others, ground water leaks in. Figuring out what was wrong was really easy in my case. Driving down the highway to work the car sputtered then died. Trying to restart didn't work for about 5 minutes. A few miles later, the same thing. Restarted and worked fine. Three times in a 20 miles trip to work. Easy to tell it was water and full tank at another station with some additive fixed the problem.
 

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download the app prue gas it will tell you who has ethanol free gas.
If your riding flat ground with small hills you can run 89 octane. If your riding mountains or riding hard use 91.
The factor tells you 91 cause you can't go wrong with it. You don't need race gas or want higher octane gas because it does no good for the motor
 

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The reason you see very few "branded" fuel tankers nowadays is that many retailers buy from the same sources.

Any advocate of a particular fuel should supply DATA to confirm why what THEY assert is better is in fact better. All fuel properties are measurable, which is for example why military fuel buyers in deployed locations take fuel samples from vendors so fuel doesn't damage equipment worth millions or in some cases billions of dollars.

"Adding additives at the retail tanks" is difficult for me to believe without direct industry citation because there are no mixers in retail bulk fuel tanks and there would be no precise way to control additive-to-fuel ratios and thus meet Federal pollution regs. Fuel must be sampled after additive addition or the mixture cannot be known with precision.
 

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Everyone is right on this.
You can easily build race level engines that run on the street and find that there is a difference between the quality of different brands of premium fuel. Once you do that you can mistakenly try to apply what you have learned to all engines, as if every engine required the same grade of fuel.

However these Vic's in stock form aren't those high performance engines.
Run what you want. A lot of people run these successfully on regular once they have a fuel controller. Some manage it before they have a fuel controller. Just don't put diesel fuel in it and of course if the motor pings put in something else that is better or higher octane.
 

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If you are trying for premium gas you want to stay away from combination pumps like the one pictured in the first post of this thread.

The first few quarts or are going to be whatever the last guy pumped which will probably be regular. If you are pumping a gallon or two. That's an issue.
 

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If you are trying for premium gas you want to stay away from combination pumps like the one pictured in the first post of this thread.



The first few quarts or are going to be whatever the last guy pumped which will probably be regular. If you are pumping a gallon or two. That's an issue.

Very true. I almost always buy from stations that each octane of gas has its own pump.


Sent from Motorcycle.com Free App
 

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If you are trying for premium gas you want to stay away from combination pumps like the one pictured in the first post of this thread.

The first few quarts or are going to be whatever the last guy pumped which will probably be regular. If you are pumping a gallon or two. That's an issue.
The typical gas hose [10ft] has 0.16 gal left over.. Or with a 4 gal fill that just adds up to just 4 percent...
A 12ft hose has 0.19 left over
A 15ft. hose 0.24 left over That adds up 6 percent.. 4 gal fill..
 

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Here is a picture of a gas pump with the covers off.
There is some piping and a pump in there as well as a selector valve and probably a filter. You'll have to add the gas they hold to your calculation. I think?



I have no idea how they really work but I am guessing that the volume of gas in the system is greater than the volume of the hose alone. Maybe someone here has worked on one and can set us both straight. I'd be interested in knowing.
 

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Blender pumps are one of the reasons E-15 has not taken over in this country yet. Small engines like bikes and lawn mowers are not approved to run with it and the small quantities of fuel people would buy for them would not be enough if the last guy bought the E-15 fuel. Cant even find anything without the ethanol in it anymore in NJ. I really hate that stuff. Doesn't make any sense adding it if your gonna burn more fuel because of it. I know my Ford gets terrible mileage with the E-10. My Vic got a little better MPG with pure gas but doesn't seem to be affected by the ethanol too much. I think the newer vehicles are engineered to run better with the ethanol. You guys who live in areas where you can get pure gasoline are lucky.
 

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Saw a story on the news that ethanol puts out 50% more emissions also, thank you corn industry lobbyists
 

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What is this ethanol nonsense???? I've never seen that before


Iceball, cruising the Alaskan Frontier mile by mile.
 

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I keep up with my gas mileage on every vehicle I own with a fairly detailed spreadsheet. I ride year around so I further break out mileage by season. After 8k miles and 48 fill ups I have actually got better mpg out of ethanol blended gas and there is no difference in mpg for me on 89 or 93 octane so I usually just run 89 unless it is above 90 degrees outside. My lifetime average is 43.42 mpg and most of that is 2-up riding in the mountains.
 

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I followed the recommendation in my owner's manual and used premium when I first bought my 08 Kingpin. After carbon fouling the second set of plugs I switched to 87 octane and have been running it ever since with no problem, even after installing the timing wheel set at +4%.
 

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After carbon fouling the second set of plugs I switched to 87 octane and have been running it ever since with no problem, even after installing the timing wheel set at +4%.

That's the first decent reason I've ever heard for buying the lower octane. Personally I can notice a difference in throttle response, and ride quality, and even sound in my bike by changing octanes. I'm a big believer in the magic chevron adds too thier pumps, I don't always go out of my way for one, but if I get a lower quality fill, I always correct with chevron. I don't mind Tesoro, but won't fill at a Holiday.

Most of our gas is trucked, barged, trucked too get here, I think the additives make a difference that they do put in.



Iceball, cruising the Alaskan Frontier mile by mile.
 
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