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I'm traveling and haven't read the whole thread, so forgive me if my comments are redundant.

I run exclusively E10 because it is mandated in my area, supposedly to reduce urban smog. I have never had performance issues that I would attribute to fuel.

I try to fill up at large, busy petrol stations, on the theory that the fuel is fresher and has had less time to absorb water from the air. Having said that, I have also filled up at sleepy little two-pump stations out in the countryside and had no problems.

I add Sta-bil fuel stabilizer during the fall/winter/spring when I'm not riding as often, and keep the tank topped up to avoid condensation as much as possible.
 

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E10 we all see as the issue, yet vested interests
dont stop at that magic %.. AMA concerns about
already available E15 in link below..
[for rest of the world AMA is a reputable motorcyclist
association, existing on behalf of motorcyclists]

there is no doubt, that E15 is not approved for
motorcycles, or atv's or chainsaws, mowers etc..
motorcycle warranties do not include, E15..

while people prepare for the E10 fox,
the E15 wolf slips thru the back door..

one, factor in introducing E10 is to condition
fuel users to, accepting ethanol..
E10 is the sighting shot..

american motorcyclist should
consider supporting AMA..

AMA Fuel for Thought
 

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I'm still wondering, how they handle this in Brasil.
Aside of other, E85-engines, I mean ;-)
A vehicle with a motor and fuel system designed to run on E85 will run just fine on it. Just look at the alcohol burning dragsters. Problems arise when ethanol is used on systems designed to run on 100% gasoline. Ethanol corrodes brass. Brass is used in many of the old carbs. The jets in my Amal carbs are made of brass.
 

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Sorry, I did not read the entire thread, but to answer the original question, I can't imagine that a motorcycle built in the 2010's would have a problem with 10% ethanol fuel. The engine was designed to run on 87 octane if I'm not mistaken, and all 87 octane fuel I've seen since around 2007 it a 90/10 blend. E10 fuel became almost ubiquitous in the U.S. since then, except for some premium fuels.
 

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email reply from Honda Australia Motorcycle
and Power Equipment Pty Ltd, on ethanol;

'Alternatives, such as E10 Ethanol fuel or higher grade
Unleaded RON fuel [Premium Unleaded] may be
used safely with Honda Motorcycles, although
it is not recommended by Honda.'

'Do not use fuel that contains MORE than 10% ethanol.'

'Fuel System damage or engine performance problems
resulting from the use of fuels that contain ethanol
is not covered under the Honda warranty.'

'Depending on weather, and the condition of the engine,
usability [when running Ethanol fuel] may be adversely
affected'

'if you notice any undesirable operating symptoms while
using a fuel that contains ethanol, switch to a fuel that
you know does not contain ethanol.'

'Rubber Fuel System parts may become degraded
more quickly.'

In all cases use of higher than 10% ethanol grade fuels
may cause running and/or performance issues.
If an engine failure occurs and it has been
determined that it is a result of poor quality or
unsuitable fuels then repairs will not be covered
by the Honda limited warranty.'

also; 'fuel can be contaminated upon purchase
within 30 days. using contaminated fuel can
seriously damage the engine. Such damage
due to spoiled fuel is disallowed from
coverage by the Honda warranty.
To help avoid this please follow
these recommendations:'
- Use only specified fuel.
- Use fresh and clean fuel.

other advices such as using petrol within 30 days,
ethanol blend damaging tank etc paintwork, etc

this changes nothing for me..
honda does not recommend ethanol fuel..
specifically warning about 'MORE than 10% ethanol'
in context of engine/performance damage
[in all cases] and negation of honda warranty..

if your area/state has fallen to ethanol corruption
of process and there is only, ethanol polluted petrol,
then obviously there is no easy alternative..
make sure its not more than 10% [good luck there]
make sure its under 30days old [after which honda
recommends emptying and cleaning the tank],
and dont spill it on your paintwork..

stiff 5hit if you own a ducati which has
[as some other engine manufacturers]
banned ethanol in their engines..
 

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email reply from Honda Australia Motorcycle
and Power Equipment Pty Ltd, on ethanol;

'Alternatives, such as E10 Ethanol fuel or higher grade
Unleaded RON fuel [Premium Unleaded] may be
used safely with Honda Motorcycles, although
it is not recommended by Honda.'

'Do not use fuel that contains MORE than 10% ethanol.'

'Fuel System damage or engine performance problems
resulting from the use of fuels that contain ethanol
is not covered under the Honda warranty.'
You are knowing, that this answer was in a postings from 2010, right?
And not a question about to the CBR250R.
But the manual is also from 2010, so that Year may not be of concern.

http://www.hondampe.com.au/docs/owning_a_honda/owners_manuals/motorcycles/CBR250R-RA 32KYJE000.pdf

Only in the manual is already written, up to 10% Ethanol is ok, but only up to 5% methanol in the gas!

I make it easy:

Petrol Containing Alcohol
If you decide to use a petrol containing
alcohol (gasohol), be sure it’s octane rating
is at least as high as that recommended by
Honda. There are two types of ‘‘gasohol’’:
one containing ethanol, and the other
containing methanol. Do not use petrol that
contains more than 10 % ethanol. Do not use
petrol containing methanol (methyl or wood
alcohol) that does not also contain
cosolvents and corrosion inhibitors for
methanol. Never use petrol containing more
than 5 % methanol, even if it has cosolvents
and corrosion inhibitors.
The use of petrol containing more than 10 %
ethanol (or more than 5 % methanol) may:
Damage the painting of the fuel tank.
Damage the rubber tubes of the fuel line.
Cause corrosion of the fuel tank.
Cause poor drivability.
Before buying fuel from an unfamiliar
station, try to find out if the fuel contains
alcohol. If it does, confirm the type and
percentage of alcohol used. If you notice
any undesirable operating symptoms while
using a petrol that contains alcohol, or one
that you think contains alcohol, switch to a
petrol that you know does not contain
alcohol.

I have no problem with you only wanna use Gasoline.
Up2you. If I had the choice regulary, I probably would, minimum every now and then, too.
But it's simply wrong, to tell that the CBR250R can't take Gasohol (E10)

The bike is build for E10 use!
 

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A vehicle with a motor and fuel system designed to run on E85 will run just fine on it. Just look at the alcohol burning dragsters.
My 2014 Chevrolet Silverado (with the 4.3L Ecotec V-6) can use E85, although I haven't tried it for several reasons... 1) GM recommends the tank be nearly empty when making the switch to E85 from regular unleaded/E10 blended fuel, or vis-versa. I refuel the truck at no less than 1/2 tank remaining and more often than not at 3/4 full, as this truck is not a daily driver. 2) While E85 costs less per gallon, fuel economy is also much lower on E85... fuel cost per mile is likely to be a wash anyway, so I'm left wondering what's the point? 3) Very few stations in my area that even carry E85.

Problems arise when ethanol is used on systems designed to run on 100% gasoline. Ethanol corrodes brass. Brass is used in many of the old carbs. The jets in my Amal carbs are made of brass.
My Honda '94 & '00 XR's have Keihin carbs with brass jets, and have been running E10 gas without issue, same for my '99 Ski-Doo sled with Mikuni carbs. I do use Sta-Bil regularly in the gas, as these engines don't see regular use.

At the same time, I can remember disassembling carbs in bikes and sleds years ago (long before E10 was in wide use), where the carb bowls & brass jets were badly fouled with the "green goddess" crud due to old, straight unleaded gas being left in them during storage. Back in the old days (before Big Brother was constantly "protecting us" from all the perceived "bad things in life"), it was the lead in gasoline which gave it it's shelf life. Whereas today, even straight unleaded gasoline (without ethanol) starts to go bad in as little as 4 weeks, and after 2 months starts to smell less like gas and more like varnish. So while E10 blended gas has it's own issues (attracting moisture, particularly in high humidity areas), straight unleaded gas too has it's issues when used in engines that don't see frequent use.
 

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didnt say: "CBR250Rcant take Gasahol (R10)"

quoted Honda direct email response to my recent,
enquiry on use of ethanol in CBR250/300R engines..

ie, that while E10 may be used,
honda does not recommend it..

throw as much text at the reality
as you like..
 

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didnt say: "CBR250Rcant take Gasahol (R10)"

quoted Honda direct email response to my recent,
enquiry on use of ethanol in CBR250/300R engines..
You did't say it, using the excact words, mate.
But all you wrote is saying it.
:D

Maybe you should ask Honda AU, why they use a FAQ -answer to your question.
Because it's the same, a SH-300i owner got in 2010.
E10 petrol - Scooter Community, Everything about Scooters, Join the Scooter Community

"Alternatives, such as E10 Ethanol fuel or higher grade
Unleaded RON fuel [Premium Unleaded]"

Never wondered, why aside of E10 also normal gas with higher RON is in the not so good 'Alternatives', too?

But the point, to your "my recent,
enquiry on use of ethanol in CBR250/300R engines" -answer:

In many places all over the world, E10, E5, is not an alternative. It's one of the regular options, you have.

And anyway, Car and motorcycle companies have to deal with it.
And won't build products, which can't stand it.

It's a multi billion dollar business, to convert food into gas. Which makes food more expensive. And with slash and burn, the jungle becomes a Palmoil plantation. Which let's also the benefit of greenhouse gas reduction look doubtful. On top of this is the waterusage for petrol reasons creating a steppisation process.
We all can only hope, that Ethanol 2.0/3.0, will pop up soon.

But anyway, politicians decided, that it's good (business)
They won't take it back.
In a couple of years, there is only one alternative, in the fuel market:
And that will be pure gasoline.

And you still think, that Honda (and others) produces products, that can't deal with this s¿it?
And are refusing warranty?:eek:
On brand new products?
And would get away with it?
A company, which has developed a E85-E10 engine for the brasil motorcycle market?

You are trully entitled to your opinion!

But before you throw text somewhere, look out for the reality, first. :cool:
 

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I for one am very happy that my part of North Carolina has no ethanol fuel readily available. None of my toys get ethanol of any percentage. We have the US 87/89/91 here, all on my way to work. I run the 89 in the 250 which would be about 92.5 RON, only because the station with the 87 is a bit dodgy to go to at night.

I've got a number of two stroke motorcycles and personal watercraft, they all get the no eth as well. Plastic tanks in the PWCs, and all are premix which eth sucks at.

Corn is for food not internal combustion engines :(.
 

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Here in DFW Texas, we don't have a choice. All our fuel grades are 10% ethanol blend or less. But I haven't had an issue with it so far, 2.8 years and 7,250 miles. But I only get 57-70 mpg, with a 64-65 mpg average.
In my 2 stoke carbureted GoPed, I used fuel stabilizing 2 stroke oil. After not being run for nearly 2 years, I pulled it out, it wouldn't start. A little shot of starting fluid in the carb and it cranked right up. Rode it all afternoon, turned it off 6 or 7 times and it started right up 1st or 2nd pull.
If one is that worried about ethanol, one can add some fuel stabilizer to the gas.
 

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The cbr250 is sold in a lot of places like India, Malaysia, etc. Ethanol isn't 'good' for any vehicle, but it's an engine that can stand up to a great deal of abuse. I wouldn't be too concerned.
 

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I was really cautious to NOT put E10 (fuel with 10% ethanol) into my Baby Blade.
My Wife took one of our older boys to another town for football on the weekend. Noticed that the BP bowser (usually is green for 91, yellow for 95 and a green/blue for ultimate 98), this one had 2 green ones with the normal "unleaded 91" written, but the second one had in real fine print "contains up to 10% ethanol".



That is what the bowser looked like, normal green 91RON, but with ethanol.

Now if you were in a rush, you could potentially grab the "E10" one, because it looks identical.

Never wondered, why aside of E10 also normal gas with higher RON is in the not so good 'Alternatives', too?
There's no point running a higher octane due to the fact that it is a waste of money. I wrote a post about that here detailing premium fuel myths.
 
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