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2017 Pure
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As I've stated in previous threads - I always put in the highest octane available at the pump - usually 93 AKI. I've tried them all and feel that the higher octane fuel makes my bike run better (it could be some sort of placebo effect, but the perception is there). So for the difference of a couple of bucks per fill up, I'll take the fuel that makes, or appears to my my bike run the best.
 

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2019 BMW R9T Pure
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145 Posts
I'm not dissing any other's opinion on this thread but I have to agree with @BlitzSchnell I definitely feel a difference between regular and high octane fuel on my bike, be that supermarket brand or Shell V-power (have tried the experiment with both over the years). I honestly don't think I'm imagining it, cause speaking as a canny scot, if I felt no difference I'd be happy spending less of my cash! LOL
Lol. I'll repeat this one last time. There is no performance gain, mileage gain, emissions gain or any other gain from using premium fuel in an engine designed for regular octane gas. There are literally thousands of sites and independent tests on line if you're interested. The converse is NOT true. If your engine requires high octane fuel, you may well experience lower performance from using regular, especially after a period of time. The seat of your pants is experiencing marketing hype if you use hi-test in a low octane engine. Ultimately it's your decision of course.... :cool:(y)
 

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2019 BMW R9T Pure
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Christian, Is our boxer at 12:1 designed for one or the other, premium or regular? Is it halfway between? I ask because I can physically feel the difference between fuels with more octane. I run a blend (as often as possible) of Avation fuel and typical high octane gas in Blitz and she perks-up considerably. It’s 4 times easier to lift the front wheel in first and second gear when under heavy acceleration. I’m not sure if she’ll go any faster top end because I draw the line at about 135 on the clock (probably not more than 120 actual mph) but I am certain she gets there quicker by a couple of seconds. No doubt in my mind. What do you think Christian, is she engineered such that some more performance actually can be obtained by using higher octane fuels ... I’m convinced she is, I can physically feel the difference and I’m certain you could read the difference on a dyno. ......Blitz
Our engines are built to require premium fuel, as are most motorcycle engines I believe. Honda made a conscious decision to de-tune the 998 in the Africa Twin, for instance, because of their expectation that the bike would be used in parts of the world that have only lousy gas available. All Ducati's require premium. Every BMW and H-D I've ever had also needed hi-test. As far as I know the Japanese liter bikes need premium too. So putting regular in my '19 Pure is a definite no-no. In fact BMW wants us to use no more than E-5. I think that's irresponsible on their part, not because I like ethanol (I don't, I think it's a racket), but because they know very well that gas in the US has a minimum of 10% in most states. Christin
 

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I just love fuelling threads! :)

More opinions than you can shake a stick at, but hey they are interesting if nothing else.

I prefer to use 98RON, my choice even though the manual says I could use 95. I think it's better others disagree. C'est la vie!

The wonders of free speech!

However there were starting to be too many fuel threads on the forum so I've just created a large bite-sized chunk of gass-ness out of 'em all.

Have fun!
 

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2018 BMW Racer
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Lol. I'll repeat this one last time. There is no performance gain, mileage gain, emissions gain or any other gain from using premium fuel in an engine designed for regular octane gas. There are literally thousands of sites and independent tests on line if you're interested. The converse is NOT true. If your engine requires high octane fuel, you may well experience lower performance from using regular, especially after a period of time. The seat of your pants is experiencing marketing hype if you use hi-test in a low octane engine. Ultimately it's your decision of course.... :cool:(y)
I don't ride mine that often, it's mostly for show in my house. I decided to run VP Racing gas C9, I ordered a 5 gallon can for my Racer and Thruxton TFC. It should come in tomorrow; now I just need to figure out the best/easiest way to drain the tanks.
 

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The owners manual says regular 87. Your money though, so if the higher cost provides higher return in terms of confidence, by all means go for it. I have almost 12000 miles on my GS now using only regular and no issues at all.
 

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2018 R9T scrambler
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"So far, I discovered that based on the production time frame of August 2017 for your motorcycle, the owner's manual recommends 87 AKI. However, for the same model but August 2018 production and onward, 93 AKI is recommended. I reached out to our Motorrad specialist to try and gather more information and will follow up once I have more information to provide. your patience is much appreciated! "
Initial response from motorrad about the 2018 scrambler
 

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My 18 manual lists 87. I looked up the production date some time back but have forgotten the date but had to be in 2017 as the original owner purchased in February of 18i believe. In any event, no problems to date with engine performance.
 

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Who would have thought 5 pages on what octane you should run in your BMW. This is almost as good as an "oil thread" (which is the best brand of motor oil to use in your bike).
 

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Who would have thought 5 pages on what octane you should run in your BMW. This is almost as good as an "oil thread" (which is the best brand of motor oil to use in your bike).
Ohhhhh we have those too! ;)
 

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Lol. I'll repeat this one last time. There is no performance gain, mileage gain, emissions gain or any other gain from using premium fuel in an engine designed for regular octane gas. There are literally thousands of sites and independent tests on line if you're interested. The converse is NOT true. If your engine requires high octane fuel, you may well experience lower performance from using regular, especially after a period of time. The seat of your pants is experiencing marketing hype if you use hi-test in a low octane engine. Ultimately it's your decision of course.... :cool:(y)
Thats the most accurate statement I've seen in this thread.

Octane relates to the flash point of the fuel, high octane allows a high perf engine the ability to get more squeeze out of the mixture before the plug lights it off. Low octane in a high test motor can cause the mixture to light off spontaneously before the plug fires resulting in detonation. Most engines today have knock sensors that will dial back ignition timing in the event of detonation and prevent the motor from destroying itself.
 

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Final e mail response from motorrad about fuel recs discrepancies. Looks like premium may be the way to go although as stated by many ,may not really matter.I'm sticking with premium.

"Thanks for being so patient while I researched the recommended fuel for your motorcycle. Here's what I found out.

The technical data comes from the development department. The fuel recommendation changed for the United States in 2017, even though there was no change to the engine or bike. Regrettably, there was no explanation of the change. You can use both fuel types, 87 AKI and 93 AKI, but with regular fuel you won't reach the rated output.

I hope you find this information helpful."
 

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Final e mail response from motorrad about fuel recs discrepancies. Looks like premium may be the way to go although as stated by many ,may not really matter.I'm sticking with premium.

"Thanks for being so patient while I researched the recommended fuel for your motorcycle. Here's what I found out.

The technical data comes from the development department. The fuel recommendation changed for the United States in 2017, even though there was no change to the engine or bike. Regrettably, there was no explanation of the change. You can use both fuel types, 87 AKI and 93 AKI, but with regular fuel you won't reach the rated output.

I hope you find this information helpful."
Well then the answer is: YES you do get better performance with a higher octane rating in a 1200 (1175) cc Boxer engine. It will run on low grade gas but you won’t get the “rated” performance. So it performs better on high grade gas, that is higher octane. I didn’t need a tech report or a dyno to figure that out, just twist my baby’s wrist and I can feel it, no science involved. Get some wind in your hair....Go Fast, Have Fun ..............
Blitz-Out ✌😎
 

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Hi guys, I haven’t been on this site for ages but today I came back and saw this thread. I have been riding for for 54 years, yes, ok, I’m 71, and during that time I’ve ridden many different bikes. All I can add to this discussion is that I’ve always used regular fuel, mostly from supermarkets, and I’ve never had any problems. ive seen so many discussions getting heated on various forums but it really doesn’t matter, you use whatever fuel works for you!
 

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I agree @paulel I have my opinion but I don't claim to be right I just fill up with what I think makes me and my bike happy. In general terms I think that if you stick at least to the minimum spec of fuel that BMW recommends then anything else is just personal opinion and it's really nothing to get heated about. Do what you feel is right I think. There is sooo many far more serious things happening in the world right now to get too worked up about what juice you pour in the tank.
 

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Hey Paulel, I’m right there with you man, I turn 71 in two months and with 50+ years UpOn2 too.
I’m not upset fellas, I’m just recognizing that there’s a big gap between running and performing. It’s not a lawn mower or a tractor. It’s a performance motorcycle that I run to 100+ mph regularly. I can feel the difference in its ability to perform and quickly shoot past 100, not weather it will start and tool along a 50 or 60 mph. BMW stated you could use: “You can use both fuel types, 87 AKI and 93 AKI, but with regular fuel you won't reach the rated output.I don’t understand the confusion ? You know the rating for HP at 110 and “rated” torque. If you’re burning regular 87 AKI then your machine is under performing .... There’s no rocket science here, you could probably burn kerosene and alcohol as was done when gas was scarce in WW II. If you ride within all the rules of the highway in your country then I’m sure regular will serve you well.... but I aim to misbehave, otherwise I’d be riding a Skooter I could fill up with the same gas as the mower. Everybody is free to burn what ever they choose but if you spend $15K on a Classic BMW and then burn regular because your frugal and save .15cents on a tank at the cost of performance....... whatever.... the logic in that alludes me completely. Go Fast - Have Fun .... Time Flys - So should You !.....Blitz
 
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