Mpg - Kawasaki Ninja 250R Forum
 
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post #1 of 9 (permalink) Old 08-14-2008, 06:09 PM Thread Starter
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Mpg

Filled up the other day.Got 63.63 mpg on 91 oct at 5,900ft elev
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post #2 of 9 (permalink) Old 08-14-2008, 06:26 PM
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91 oct doesn't do anything extra for your bike if anything its worst. Also that kind of elevation doesn't make to much of a difference if any. Sorry I don't mean to come off as rude but you are wasting money using 91, 87 is fine.

A word to the wise ain't necessary - it's the stupid ones that need the advice.
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post #3 of 9 (permalink) Old 08-14-2008, 07:39 PM
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I think elevation should make a slight difference, especially where it's that high. The oxygen level is less than where I'm at, 1500ft, so I'm assuming that the engine can run a bit leaner. But yeah, the manual does say to use regular. Unless the engine is knocking, regular should be good. Higher octane rating mainly means that the gas is less volatile, so it can be compressed in the cylinders more tightly without pre-detonation. The 2008 Ninja 250R's compression has been lowered compare to previous years, 11.6:1 versus 12.4:1 (2007 specs). So there's even less need to use premium.

Back to the topic, I get about 55mpg cruisng at constant 80-90mph (indicated) at between 500-1500ft above sea level..
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post #4 of 9 (permalink) Old 08-15-2008, 01:09 AM
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Gas?

i thought you just feed the hamster that runs the wheel?

I thought that when the gauge hits "F" it means to feed the hamster....

Go Go Kawasaki Go!
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post #5 of 9 (permalink) Old 08-12-2009, 07:14 PM
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only my 2 cents but umm under the passanger seat is a spec sheet/list and on my 2008 says that minimum octane is 91....so umm...not to sound like an idiot but isnt that what we're supposed to fill the bike up with? I got 55 mpgs just like Vtec44, doing close to the same speeds on a freeway cuz that the way i take to go to work.
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post #6 of 9 (permalink) Old 08-12-2009, 10:15 PM
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I'll have to check under the seat then
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post #7 of 9 (permalink) Old 08-13-2009, 04:14 AM
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I have been putting 91 in mine. It does say so under the seat. The only thing I don't like is when a gas pump has only one hose. You know that you are getting a quart or better of 87 octane.
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post #8 of 9 (permalink) Old 01-09-2010, 01:46 AM
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The sticker under the seat is not for the way gas is rated in the US.
90 RON is the equivalent of 87 PON which is how the US rates fuel.
http://www.btinternet.com/~madmole/R...RONMONPON.html
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post #9 of 9 (permalink) Old 01-12-2010, 06:58 PM
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I have always been an advocate for using lower octane fuel, as it does better in most automobiles. As far as fuel for a motorcycle goes, I just as soon run high octane fuel. The 250r runs over ten thousand rpms and get very good fuel mileage. The difference in price is negligible.
For only a few dollars a year, avoiding detonation is well worth it.
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