July 15th, 2013, 04:16 PM | #561 |
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July 15th, 2013, 04:56 PM | #562 | |
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Lets put it this way, if our mythbusters pour a 100 foot long trough full of 87 regular and a second one full of 100LL avgas, and light one end of each at the same time, which flame will get to the end first? My money is on the 87 regular.
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July 15th, 2013, 05:13 PM | #563 | |
ninjette.org sage
Name: Tim
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Quote:
But yes, I know the difference between octane and cetane, though they are similar rating. The point is that the higher octane gasoline can be compressed more without it lighting off on it's own, which is why it is required for higher compression motors. |
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July 15th, 2013, 05:31 PM | #564 | |
not an actual panda
Name: dan
Location: philadelphia
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Quote:
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July 15th, 2013, 06:36 PM | #565 |
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Yes technically speaking, deflagaration is what makes the flame spread inside a cylinder that pushes the piston down. But you're right about the gaseous vs liquid differences. Still, my money is on the 87 regular.
In any event, the bottom line is that you don't need anything higher than 87 in your Ninja. Supersports have labels that read "90 octane or higher only". I've never owned one so I can't tell you if they run on 87 or not.
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July 16th, 2013, 05:05 AM | #566 | |
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I stand corrected. Ya learn something new every day.
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July 16th, 2013, 02:52 PM | #567 |
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July 16th, 2013, 04:23 PM | #568 |
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I put 93 because I saw somewhere that it said 91 minimum octane....plus it makes me feel like im keeping my carbs clean with clean fuel.... anyone ever add additive to their tank to clean carbs?
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July 16th, 2013, 04:36 PM | #569 |
ninjette.org sage
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July 16th, 2013, 05:43 PM | #570 |
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The recommended octane on the 250 is 87. The supersports say 90.
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July 16th, 2013, 06:03 PM | #571 |
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It says 91 for those stupid European numbers, they always overestimate ****. It's 87
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December 23rd, 2013, 10:16 AM | #572 |
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December 23rd, 2013, 10:29 AM | #573 |
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Ethanol free when I can find it, 87 when I ain't gota run premium to be ethanol free...
Nice bump
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December 23rd, 2013, 10:45 AM | #574 |
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Standard ol cheap stuff. Whatever the regular octane is at the station I happen to stop at.
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December 23rd, 2013, 10:51 AM | #575 |
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I use aviation fuel whenever I can get it (I hear it can make the bike fly). Problem is I have never been able to get it.
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December 23rd, 2013, 10:58 AM | #576 |
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87 unless I have to stop at Arco or some other cheap fuel station, then I use 91. I also add Startron once a week.
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December 23rd, 2013, 11:00 AM | #577 |
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December 23rd, 2013, 11:30 AM | #578 |
ninjette.org certified postwhore
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It could only happen in Rhode Island. Everything is on the black market there.
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December 23rd, 2013, 10:31 PM | #579 |
ninjette.org member
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i just got 300cc se in thailand
kawasaki told me 95 is better for it (thats 91 in usa i think) here thay do 91 gasohol petrol with ethanol not sure 95 contain it |
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December 25th, 2013, 02:55 AM | #580 |
ninjette.org member
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in manual it says minimum 87 octanes / 91 europe
and it says gasohol with up to 10% of ethanol is aproved and no more then 5% methanol |
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December 25th, 2013, 07:29 AM | #581 | |
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Quote:
Follow the manual!
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May 19th, 2014, 10:20 PM | #582 |
I love lamp.
Name: Michael
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Ninja 250 gas
So I have a 2007 ninja 250r and I've been feeding her premium...Should I keep doing that or stop???
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May 20th, 2014, 04:11 AM | #583 |
Long Time Rider
Name: Blue
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Ethanol free 87 Octane is all you need (if you can get). It's worth the few extra cents if it's not too high. For our bikes, it makes a little more power, lasts longer an is not subject to issues as much as gasoline with ethanol.
Throw in some Iridium Spark plugs and enjoy the ride. Good reading material- https://www.ninjette.org/forums/show...&postcount=548 |
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May 20th, 2014, 04:27 AM | #584 |
Blind 250 Loving Whore
Name: Tom
Location: Chesapeake, VA
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Put 87 in the bike. You want to run the lowest octane fuel you can get away with, which for us is 87.
If you can't readily get pure gas, don't fret about it. Nearly everywhere is E10 now. |
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May 20th, 2014, 05:20 AM | #585 |
ninjette.org sage
Name: Fox
Location: Boston
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87.
as stated above, ethanol free is better, but don't worry about it. Use Stabil if it's going to sit longer than a few weeks to prevent water absorption. Gas stations advertising higher octane gas as "premium" is quite silly. It doesn't "burn cleaner" or any garbage like that. It simply is harder to combust. That helps if you are running higher compression, or forced induction (turbo) but on the ninjette, 87 is ideal. You'll get a more complete burn using the lowest octane that your vehicle is designed for. And that's good for all sorts of reasons. Vehicle performance, emissions, etc. |
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May 20th, 2014, 06:48 AM | #586 | |
Rev Limiter
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Quote:
Per his recommendation - 87 without ethanol is always the winner for the Ninja. He could update that article to include "America's Fastest Ducati" as well as "America's Quickest Ducati" . He has gone 212+ at Bonneville since that was written. My shop has coated parts on both of the bikes. Here's a link to the Tech Tips page with more info and maintenance tips - http://www.motorcycleperf.com/TechTips/TechTips.html |
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May 20th, 2014, 10:08 AM | #587 |
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/merged with existing mongo "octane" thread
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May 20th, 2014, 10:32 AM | #588 |
Fast-Guy wannabe
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Funny this thread pops back up just as my dad asked me to make some more ethanol free gas for his landscaping equipment. Every 6 months or so I take some 91 and pull the ethanol out with a little bit of water to make ethanol free 88-89 octane.
As for the ninja a go with 87 and it's still going strong after 45k miles. I never stop ridding it but every year I run a tank of seafoam through it and a little in the oil right before changing it. I've never had my bottom end off but every time I inspect my valves the coating of oil looks nice and clean. |
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June 11th, 2014, 05:53 AM | #589 | |
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Quote:
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June 11th, 2014, 06:01 AM | #590 |
Track Clown
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premium, because it is usually ethanol free.
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June 12th, 2014, 02:28 AM | #591 |
ninjette.org certified postwhore
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Well I know this has been said before but here goes. All gas is the same! The higher octane numbers are just chemicals they add to slow the burn rate (slightly) in the cylinder. The little ninja has low (for a bike) compression so 87 octane is fine and actually better. You get more power with less octane! The higher octane is only good for highly tuned motors with timming advance and high compression. Turbo motors have lower compression but force more air/fuel into the cyl so they (some) require higher octane. When an engine is highly tuned for power it becomes more important when and how fast the fuel burns and this is where the higher numbers give an advantage. The rule of thumb is to use the lowest octane possible until knock occurs. Using anything higher will not hurt the engine (may see lower power or mileage) but it will not get you any benefits. Lots of the newer high performance bikes have <12.1 compression ratios and run timming advance to the max depending on RPM vs throttle position/load that is why they require higher octane. Cars are a different animal all together. So unless you have had motor work, heads ported and the jetting changed on your bike, run 87 and save your money.
Ride happy Ant |
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June 15th, 2014, 03:08 AM | #592 |
Down Under
Name: Linkin
Location: Sydney, Australia
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91 stuff, Australian standard. Whatever that is.
I'd prefer 95 but the local servo doesn't have it. |
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June 15th, 2014, 04:57 AM | #593 |
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95 which is the lowest here.
let me explain..... There is no point using anything higher because pregen Ninjas don't have an engine management system to adjust the timing. You can put 99 in but you wont get any more power because without knock sensors and management all the timing stays right where it was before. |
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June 1st, 2016, 10:14 AM | #594 |
ninjette.org newbie
Name: Steven
Location: Vancouver Island, British Columbia
Join Date: May 2016 Motorcycle(s): 2015 Ninja 300 Posts: 5
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Question about gas
So these of you who read my welcome know that I just purchased a new 2015 300, the owners manual says nothing less than 87. Would it be more beneficial to the engine and overall power to put 94 with NO ethanol in it? Or should I save myself the few extra bucks and go 87 WITH ethanol?
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June 1st, 2016, 10:17 AM | #595 | |
Vintage Screwball
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Quote:
Just run good old 87 pump gas.
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June 1st, 2016, 10:20 AM | #596 | |
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Quote:
No ethanol 94 is better than 87 with, but if all grades have ethanol then use 87. I have 34,000 miles on my '13 300 and it has not seen anything but 87 with ethanol but I do run a tank with seafoam about every oil change and all winter.
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June 1st, 2016, 10:23 AM | #597 |
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Save the coins. Your bike will not gain any real additional performance from the higher priced gas.
To give you some homework to think about, google octane rating and ignition timing or more commonly referred to as spark advance. In bikes, this (and fuel mapping at specific rpms) is tweaked with products such as bizzaz, power commander or ECU flashing.
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June 1st, 2016, 10:40 AM | #598 |
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Here we go again....
Premium won't hurt your bike. It will hurt your wallet. Ethanol over the very long term reportedly causes issues with O-rings, plastic and such. So it comes down to a cost/benefit question. Here's my $0.02: Millions of people have put billions of miles on engines running typical "no more than 10%" ethanol-blended fuel. How many people do you know who've had car trouble traceable to ethanol in the fuel? I don't know about anyone else, but my last four cars were all run on pump regular after they started blending at the end of the 1980s. Collectively they've taken me more than 650,000 miles -- so far -- with ZERO fuel-related issues. As in NO IMPACT of ethanol on the engines or fuel systems that resulted in a failure of any kind whatsoever. Now, absence of proof is not proof of absence. There is documented proof that ethanol damages fuel systems in various ways. The real question is whether that matters or not in the real world. My personal experience is that it doesn't. Is your goal to maximize engine life? Engines do wear out, ethanol or not. The question here is when, and whether any reduction in life span matters. The number of engines that actually reach end of life before the vehicle is sold or crashed is miniscule compared to the total number of engines in use. If you want an engine to last forever, pickle it and never start the damned thing. Since you have access to unblended fuel, go for it if it makes you happy. You will spend more and get peace of mind that you're using 100% pure dino juice in your bike. Will your bike run a lot better? Not really. Will it get better gas mileage? Yes, because the energy density of ethanol is lower. But drastically better? Not really, and definitely not enough to offset the added cost. Will your bike last longer? Aside from the high likelihood of you moving on long before it wears out (thus making the question moot), in theory yes, but not that much (willing to be proven wrong, but any counter must be supported by actual evidence, not mere assertion). Will you make more power? See above about energy density. Will you notice? Probably not. This opinion is based entirely on personal experience, observation and plain old common sense. Take from it what you will. It's worth every penny you've paid for it.
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June 1st, 2016, 10:47 AM | #599 |
Rev Limiter
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I vote for the lowest octane that doesn't contain ethanol.
I have ethanol-free 87 octane available, but if I don't I'll go for the next lowest octane without. Gas with ethanol won't damage most newer engines, but it has disadvantages. If your cycle has a carb, gas with ethanol will make your mixture leaner, which it may be already if it hasn't been adjusted, so running ethanol-free may give you better running and performance. Ethanol-free will also give you better mileage, but at increased cost, so it may be close to even. |
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June 1st, 2016, 10:53 AM | #600 |
Certified Troublemaker
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These are always entertaining. FWIW i have only ever run premium in my bikes. Burns cleaner (as per my mechanic and other half) and gives me the warm fuzzies. it's more or less personal preference.
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