Author Topic: High, Medium or Low Octane?  (Read 16199 times)

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Offline Retro Rocket

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Re: High, Medium or Low Octane?
« Reply #50 on: June 13, 2013, 05:38:33 PM »
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E10 might be a bad idea for bikes that aren't ridden very often

And thats one of the main problems with it as a marine fuel, It sits in the system for extended periods causing all sorts of problems, so extensive maintenance is required to keep everything in good running border...
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Offline xsmooth69x

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Re: High, Medium or Low Octane?
« Reply #51 on: June 13, 2013, 05:49:20 PM »
only run pure premium 91 octane
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first motorcycle ever!!! ow and i dont know how to ride it either :D

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Offline Lostboy Steve

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Re: High, Medium or Low Octane?
« Reply #52 on: June 13, 2013, 06:53:12 PM »
Here we have 87 89 91 or 93 Octane. Then at some Sonoco stations we have unleaded 100 octane for 12 dollars a gallon, smells great but doesn't do a goddamned thing in my cb. My yz250f loves it though. nI usually run the 93 however on my latest run of 200 miles I ran 89 and it felt and sounded exactly the same, no pinging or knocks.
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Offline RAFster122s

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Re: High, Medium or Low Octane?
« Reply #53 on: June 14, 2013, 01:55:09 AM »
Pinging is pretty high frequency stuff usually and when it starts getting into the audible range it is pretty severe.  The cb sohc bikes don't need any higher octane than 87...won't benefit or improve performance on these bikes. Ethanol is evil but,  in some areas you do not have a choice for  non-ethanol fuel.
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Offline 70CB750

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Re: High, Medium or Low Octane?
« Reply #54 on: June 14, 2013, 03:45:37 AM »
I just found a gas station, 18 miles from home, that sells pure gas.  I will be going there a lot  :)

Offline Muckinfuss

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Re: High, Medium or Low Octane?
« Reply #55 on: June 14, 2013, 10:30:32 AM »
Retro....two things.... 1.  I don't live in Australia and in the US, no such marine 'mandate' exists except from companies promoting additives off the shelf here and in Australia.  2. My motorcycle doesn't float, so 'your' marine issues don't really matter to me, no matter how important they are to you. 

There are way too many research studies published that fly in the face of all the hype (which is almost all political sourced...beef producers, fishing associations etc).  These studies are by third parties without any dog in the fight so to speak, University teams doing the evals, very technical, but here are a couple up for you. 
https://www.ethanol.org/pdf/contentmgmt/E30_Final_Report.pdf
http://web.iitd.ac.in/~pmvs/ICengines/paper15.pdf

I've read a few over the years due to my involvement with racing.  I live next door to a research chemist who works at Lubrizol, the company that most of the fuel manufacturer's buy their secret sauces from.  He basically laughs at all the hype.  All fuel manufacturers refer you to the maker of your engine...including your beloved Caltex in their Bio E-10 data sheet.  You should read it.  It's not circular logic...it's common sense.  If an engine manufacture says it's ok, why on earth would you say it's not?? 

From the New South Wales office of Biofuels (government correct?) website FAQ: "Is ethanol fuel just for cars?"

No. E10 (10% ethanol blended with unleaded petrol) is suitable for use in most petrol-fuelled cars and trucks sold in Australia since 1986. It is also suitable for use in many motorcycles.
Ethanol-blend fuels are generally not recommended for marine engines due to the danger of water contaminating the fuel. Further detailed advice is available from the NSW Maritime Authority.
For other small engines such as lawnmowers, leaf blowers and chainsaws refer to your owner's handbook or ask the manufacturer or distributor. Ethanol-blend fuel should not be left in the fuel tanks of small engines for more than a few weeks.
Ethanol-blend fuels are not suitable for aircraft use unless the aircraft is specifically certified to use motor gasoline (MOGAS) containing up to 10% ethanol.  Further advice is available from the Civil Aviation Safety Authority

You want to keep believing voodoo, go ahead, but your own words are refuted by an Australian government body and the first (and only) fuel producer unique to your backyard that I looked at.  But my point all along has been that too many people spread myth like it's law...and it's not!  Anyone can make decisions how ever they want, but to make up stuff to make your point seem real...not cool.  Like I said in my earliest post, I don't really care what YOU put into your gas tank....it's your money.

Over and out.
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Offline Retro Rocket

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Re: High, Medium or Low Octane?
« Reply #56 on: June 14, 2013, 06:19:32 PM »
Quote
I've read a few over the years due to my involvement with racing.  I live next door to a research chemist who works at Lubrizol, the company that most of the fuel manufacturer's buy their secret sauces from.  He basically laughs at all the hype.  All fuel manufacturers refer you to the maker of your engine...including your beloved Caltex in their Bio E-10 data sheet.  You should read it.  It's not circular logic...it's common sense.  If an engine manufacture says it's ok, why on earth would you say it's not?? 

I think you really are naive mate, all the info you post is from either fuel companies selling the crap or bodies trying to push it on us as a great fuel, also most of what you posted supports my claims, moisture problems in tanks and contamination of fuel systems, which is commonly known, also diminished engine life from the bore wash down effects of ethanol. there is also no refuting that you get less miles per gallon from the ethanol compared to regular fuel and once again, its growing food for fuel, awesome accomplishment that one... :o

Your first link July, 1999  :o  Been a lot of law suits based on ethanol ruining engines since then...
Both links also point to the problems with ethanol use and therefore discuss engine MODIFICATIONS to run the fuel, costing US more money, your actually helping my dislike for this stupid thoughtless fuel, it seems the best performance results are for the farmers that are subsidized to grow it costing us even more.  great stuff this ethanol....

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You want to keep believing voodoo, go ahead, but your own words are refuted by an Australian government body and the first (and only) fuel producer unique to your backyard that I looked at.  But my point all along has been that too many people spread myth like it's law...and it's not!  Anyone can make decisions how ever they want, but to make up stuff to make your point seem real...not cool.  Like I said in my earliest post, I don't really care what YOU put into your gas tank....it's your money.

The right side of politics is trying to force this fuel on us here [and in the USA}and guess what, NSW has a right sided political party, its their mates growing the sugar cane used to make it here, try looking into that..  Where did I make anything up mate..? thats pure bullshi1t, I'll type bigger for you so you can understand, ETHANOL ATTRACTS MOISTURE AND CONTAMINATES FUEL SYSTEMS, that is neither myth or made up, you have pointed it out in numerous posts yourself... I will take a photo of the warnings on our fuel pumps put there BY THE FUEL COMPANIES.....   Try reading both sides of the debate.... And for your information around the year 2000 all boat engine manufacturers MODIFIED their engines to SUIT 10% only ethanol blends and auto manufacturers are doing the same but recommend not going any higher with ethanol content, the moisture problem in fuel tanks will persist for ever though so there are still on going problems, this is also a way of getting rid of our old vehicles, Govts have been trying to do this for years, {you do remember that we are at the SOHC forum..?}   so it seems these costs are also passed on to the people, so i fail to see its worth at all. And once again, using food producing land to "grow" fuel is one of the most stupid things we have ever done..
Remember MTBE, that was great also, wasn't it..?

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2. My motorcycle doesn't float, so 'your' marine issues don't really matter to me, no matter how important they are to you. 

I'll help you here again, it is a direct comparison as to why ethanol is no good in our old engines and fuel systems, you are that hell bent on proving ethanol is great that you fail to see the points i raised, they are cross over comparisons regardless of the vehicle..

Anyway, i don't give a sh1t really, I know whats best for my old beasts and ethanol isn't it, Try reading everything and not just one side of an argument, Simply, a fuel that causes MORE maintenance and provides less economy just doesn't cut it for me and most others.... I'm over discussing this with you as its clear you only read what you want to because all the information you have supplied also points out what i'm saying here, you need to look at production methods and associated costs, engine mods purely to run this fuel and its associated costs, the reasons Govts subsidize the hell out of it {more costs to us} and again all the law suits both past and present, even more cost to us, starting to get the picture yet. I'll put it to you this way, If this was the holy grail of fuels i would be all over it, i'm no greeny, but i am also not stupid , ethanol is a political fix for a number of reasons but if you want to know more you can go find out for yourself {read everything}....Your kinda beating a dead horse  mate, not many here that will agree with what your saying for obvious reasons....good luck , I'm outa here.... 8)
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.