So E10 is being forced into the pumps here in Ireland at the end of the year and E5 is being discontinued thereafter (Ethanol free petrol cant be bought as it is). This will likely have a detrimental effect on NSR's and other classic 2 strokes. My wife has got a doctorate in Chemistry and she said that taking ethanol out of petrol is easy. Just pour DIW (de-Ionized Water) into the petrol and shake well. The water will bond to the ethanol, as ethanol is water soluble, and the ethanol will separate from the petrol. Then drain the ethanol that is separated at the bottom and boom, apparently you have ethanol free petrol. Has anyone tried this???

I assume 2 problems.

1. The octane is now massively reduced and detonation will likely occur.

2: Detergents and other additives may be pulled out of the petrol along with the ethanol, making it even more undesirable than the original E10.

Or perhaps I'm wrong and this is a great way for us to go back to using Ethanol free petrol in our bikes.

Disclaimer: DO NOT REMOVE ETHANOL FROM YOUR PETROL AND RUN IT IN YOUR BIKE AS IT WILL LIKELY END IN DISASTER.

I’ve seen this done on various YouTube videos for classic four stroke cars and bikes and some people add additives afterwards. They also add a dye to the water to make it easier to see the separation.
I have thought about it but at the moment I’m still using Esso supreme or whatever their super unleaded is called!

well you're pretty lucky to be able to buy esso super. We cant get anything less than 5% here and after 2022 we wont be able to get anything less than 10% ethanol. I might have to look at some youtube vids like you mentioned. I fear 10% ethanol will destroy the centre seal on the NSR cranks

So I was thinking maybe you could take the ethanol out of the fuel and add some of this to it to boost the octane back up:
https://www.murraymotorsport.com/vp-racing-fuels-octanium-unleaded-fuel-madditive---0-95l-vpr29505?currency=EUR&incl_vat=1&gclid=Cj0KCQjw-pCVBhCFARIsAGMxhAea1oV7TkNs1q0PJuK6qmkE33LSjw8U_yO9zBrQQmBWa32l8XNUa3IaAoneEALw_wcB

or if you have an infinite bank account just run this: https://www.murraymotorsport.com/motorsport-109-ms109-unleaded-race-fuel

I clicked on that, and quickly clicked off again, and i thought Avgas was expensive !!!
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Proud Father of , 05 ktm 400exc supermoto 2018 honda crf rx supermoto

is hard to jet for avgas? There are practically zero ethanol free options here in Ireland, and soon to be a minimum of 10% ethanol. I was told by a classic car friend of mine that most people use these https://millersoilsireland.ie/product/tetra-boost-e-guard-15/. So the only options i have now are
https://millersoilsireland.ie/product/vspe-power-plus-treats-500ltrs/

1: VP Race fuels
2: Avgas
3: Standard pump petrol with that Tetra Boost.

How it turns the fuel into leaded fuel I don't know. sounds like snake oil tbh but I'm gonna do a little research on them now.

I use Motorex ethanol fuel stabaliser. I researched a few products when the E10 was pushed out. Motorex seemed to be the best option. You can get it in one shot sachets to treat a tank, or a more economical bottle.

I might have to look into the additives because it seems that I will have no other choice but to use the E10 unfortunately. thanks