February 25th, 2010, 04:58 PM | #121 |
ninjette.org member
Name: Corey
Location: Salty City
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I run 85 because the altitude here is about 5000 ft above sea level... but this is what the bike says on the inside of the fairing:
Maybe on a hot dry day near the coast...if it started pinging! (This does have California emissions for some reason.) |
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February 25th, 2010, 05:10 PM | #122 |
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It's a misleading sticker, as the US does not use RON. We use RON+MON/2. 91 RON works out to roughly 87 RON+MON/2, as MON is typically about 7 - 10 points less. Look at the Octane number details on any pump, and somewhere in the fine print it will show that RON+MON/2 formula. It's not an exact science, and the particular fuel blends matter, but that sticker should not be read to mean that our bikes, pre-gen or current-gen, require premium gas here in the US.
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February 25th, 2010, 05:17 PM | #123 |
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Name: Corey
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Nice explanation!
I did not know that. So actually in the US we could run 81- 83 octane and be fine!! Wow. |
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February 25th, 2010, 10:05 PM | #124 |
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Name: michael
Location: Clay County, Alabama
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i run 93 in mine because of the high compression, i figured running anything lower would cause pre-detonation. i may be thinking old school tho
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February 25th, 2010, 10:20 PM | #125 |
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Name: Keenan
Location: Newmarket, Ontario
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The compression isnt actually high. Your actually just wasting cash because 87 octane wont cause pre-detonation. Infact 93 octane is slowing down ignition and your probably losing a slight amount of power.
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March 9th, 2010, 08:55 PM | #126 |
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Name: elle
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this seems like the right thread for this question: how does altitude change fuel requirements? if i'm on a road trip, how do i choose what to feed the beastie with?
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March 9th, 2010, 09:13 PM | #127 |
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High altitude lowers the required octane, so while 87 will work anywhere, at high altitudes if something like 85 or even 83 were available, it would likely work fine. Since in most cases 87 is the minimum anyway, it'll be fine.
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March 9th, 2010, 11:46 PM | #128 |
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Increase in carbon deposits in the combustion chamber increases compression ratio. If you do get ping because of this, then you should use higher octane.
These engines run at very high rpms, and as long as you don't lug the engine under load you should be ok on 87 octane. Personally I have been using 91 cause just in case I get a batch of bad gas! |
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March 10th, 2010, 07:52 AM | #129 | |
ninjette.org sage
Name: Marc
Location: Crawfordville, Florida
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Quote:
People have the mistaken idea that the higher the octane rating, the better or more powerful the gas is, and that is just not correct. So do what you want, use your own logic to justify your actions, but you are not helping yourself or your bike in any way. |
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March 10th, 2010, 11:50 AM | #130 | |
ninjette.org member
Name: Leo
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Quote:
In my camaro running regular will cause the engine to retard if the knock sensor detects it. This decreases performance. I have always been a car guy and so with my ninjette treat it just like a high performance engine! You go by the book and I just go by my experience and we both are very happy! |
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May 25th, 2010, 12:10 PM | #131 |
Join Date: Nov 2008 Posts: Too much.
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May 25th, 2010, 12:36 PM | #132 |
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Bad gas can be from contaminants in the tank or the truck delivering the gas.
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May 25th, 2010, 12:47 PM | #133 |
Professional belly dancer
Name: James
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LOL not even my gixxer gets 91 octane.
Here's a question for everyone. If the jerk before you used 87 octane gas, then you come puttering in and opt for 91....how much 87 gas (already in the hose out of the pump) gets into your tank before the 91 starts flowing in? That oughta get a few butts puckered |
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May 25th, 2010, 01:23 PM | #134 |
ninjette.org member
Name: D
Location: Michigan
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87 in both the Ninjettes as recommended, no issues whatsoever, there's no sense in running a higher octane unless you experience problems with 87...
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May 25th, 2010, 01:27 PM | #135 | |
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Quote:
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May 25th, 2010, 01:35 PM | #136 |
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I've done the test, in both my bike and my car. I've tried 87-89-91-94-95, I seem to get the best results and I feel like 89 is right for me, I'm at like 100 ft above sea level. Does this make any sense?
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May 25th, 2010, 01:36 PM | #137 |
Join Date: Nov 2008 Posts: Too much.
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May 25th, 2010, 01:46 PM | #138 |
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Name: Pat
Location: Barrie, Ontario
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I tried some Shell V-Power this weekend, and I noticed the bike running a lot smoother (less hesitations, more pull, smoother idle, better fuel economy). I normally just gas up at the Pioneer 1 block from my house.
Now the story would end here as a random anecdote, but the science is terrible so I'll refute it: - The temp has gone up almost 10-15C this weekend, warmer ambient could easily explain it. - I did my chain maintenance and lubed the axles on the wheels. It doesn't explain the engine changes, but it always makes the bike feel smoother. - Shell gas could have some chemical differences that the bike is better engineered to handle (ethanol ratios?). - Pioneer is typically cheaper than shell around here, it's possible there might be more particulate in the fuel (pure speculation). Shell's regular gas might work as well (or better) than the v-power. - The bike is a 2009 with 13k km on it, I'm not sure the injector cleaner (does it even work on carbs?) they include in v-power would have much effect, unless my existing gas was somehow causing problems. I believe I spent $1.00 extra on my fill up to speculate on the internet. The only thing I can say for sure is v-power entertained me for a bit
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May 25th, 2010, 01:56 PM | #139 | |
Professional belly dancer
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Quote:
This doesn't even account for the amount of ethanol certain companies put into their gas additive package that effectively lowers the octane rating further. |
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May 25th, 2010, 02:56 PM | #140 | |
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Quote:
Ethanol is actually one of the most common ways to *raise* the octane level. The high ethanol content gas means that much less of other additives and treatments are necessary to meet the octane rating requirements. Ethanol has less available power in it by weight compared to standard gasoline, but its octane rating is quite high.
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May 25th, 2010, 03:39 PM | #141 |
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Location: Chico
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Vp u 4.2
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May 25th, 2010, 03:52 PM | #142 |
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May 25th, 2010, 03:55 PM | #143 |
The Sportisi Master
Name: Matt
Location: Chico
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Race fuel $66 for 5 gallons 102 octane leaded and oxygenated
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May 25th, 2010, 03:58 PM | #144 |
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^^^ Ah ok.
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May 25th, 2010, 04:20 PM | #145 |
Join Date: Nov 2008 Posts: Too much.
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May 25th, 2010, 04:39 PM | #146 |
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I run 93 because it burns cleaner and its easier on engine parts. And with great gas mileage like this, why not spend a few extra pennies. Use it while you can, before you know it all the oil will be in the ocean.......
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May 25th, 2010, 04:53 PM | #147 |
The Sportisi Master
Name: Matt
Location: Chico
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Nope. But whoever said my bike was stock. 33+hp isn't bad for a track/ race bike
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Sportisimoto USA is born. |
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May 25th, 2010, 04:59 PM | #148 |
Join Date: Nov 2008 Posts: Too much.
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May 25th, 2010, 05:03 PM | #149 |
ninjette.org member
Name: None
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May 25th, 2010, 05:57 PM | #151 |
The Sportisi Master
Name: Matt
Location: Chico
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Agreed with Dwayne and Kelly. If If I did not have the ignition advanced to where it was I would run 87 octane because it performs the best with the stock set up.
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Sportisimoto USA is born. |
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May 25th, 2010, 07:29 PM | #152 | |
Professional belly dancer
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Location: Toronto
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Quote:
Insert facepalm here |
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May 25th, 2010, 08:40 PM | #153 | |
Black Ninjas
Name: Zie
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Quote:
are you saying that in your country the fuel of different grades are coming off from the same pump??
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May 25th, 2010, 08:42 PM | #154 |
Join Date: Nov 2008 Posts: Too much.
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May 25th, 2010, 08:49 PM | #155 |
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May 26th, 2010, 12:23 AM | #156 |
That's me!
Name: TJ
Location: Ames, IA
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Well actually the oxygenated racing fuels as ZTrack mentioned WILL increase horsepower all things being equal (oxygenated fuels increase O2 content), but as has been mentioned over and over and over again, octane has no correlation to power. And here in the Midwest since ethanol is so prevalent 89 octane fuel costs less then 87 octane (because ethanol is the additive used to raise octane in that case). That's the only reason why I use 89 octane whereas anywhere else in this country I'd use 87 ((RON+MON)/2).
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May 26th, 2010, 05:41 AM | #157 | |
Professional belly dancer
Name: James
Location: Toronto
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Quote:
Even rarer still is when you come across the old style pump...where you have to flip down the little thingy instead of pressing the buttons. I love seeing people struggle with those ones. |
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May 26th, 2010, 09:25 AM | #158 |
FORMER MOTORCYCLE RIDER
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May 26th, 2010, 09:37 AM | #159 |
Professional belly dancer
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Location: Toronto
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^^Woah...that's even older than I was talking about. Stuff like that doesn't survive up here with our insane climate changes.
I was talking about these ones: And even THOSE are pretty new....circa late 90's I'd say. Finding one of those around Toronto is like stumbling onto dinosaur bones |
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May 26th, 2010, 10:55 AM | #160 |
ninjette.org member
Name: Paul
Location: Franklin, MA
Join Date: May 2010 Motorcycle(s): '09 Ninja 250R Black Posts: 12
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87, cause thats what i was told
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