E10 petrol

[Seeker]

Originally Posted by johnnyrod

http://www.biofuelsdigest.com/bdiges...ration-occurs/

So phase separation does occur and the water/ethanol mix will form a layer with the petrol on top.

The article says: " it often took more than three months for phase separation to occur, meaning the fuel had already weathered to a point it was unusable".

I don't know how much climate affects the time for petrol to go stale - but most of the US has long, hot Summers.

I've left vehicles for much longer than three months and expected them to run but if phase separation had occurred that would not have been the case. My Kawasaki H1 (had it worked out) would have been a Summer only bike which would have meant removing and draining the carbs, draining the tank and storing it somewhere dry over the winter months.

I bought this:https://www.frost.co.uk/ethomix-corr...ol-protection/
but never got the chance to evaluate it.

[johnnyrod]

Apparently so but at E15 it doesn't separate

[Seeker]

Originally Posted by johnnyrod

Apparently so but at E15 it doesn't separate

do you have a link for that because all the info I find indicates that any ethanol formulation will phase separate.

The next gen bio fuel will probably be butanol which does not separate.
https://www.washingtonexaminer.com/o...biofuel-option

[johnnyrod]

No link, something I read yesterday. With enough of a cosolvent i.e. the alcohol you won't get any separation. Butanol (either of them) or IPA are more lyophilic than ethanol, so will not want to separate. I wouldn't place any bets on what the next thing will be, it's an industry riddled with BS about energy balances and economics to support whatever your chosen point of view is.

[redtrummy]

Thanks J an interesting read. I do have some reservations about E petrol. My Cub on a couple of occasions, after winter, has failed to start. I Change the fuel and away it goes. I then put the fuel in the lawnmower and no problem. Petrol left in the Suzy carbs does appear to clog much more easily than it did. I will own up to being an 'occasional' rider - only when its dry as well!

[SV650rules]

Originally Posted by redtrummy

I will own up to being an 'occasional' rider - only when its dry as well!

A good many bikers are like you, 'fair weather riders' - which makes Ethanol more of a problem than in other vehicles as the fuel can be left for longish periods.. Don't know how picky a basic lawnmower engine is about fuel, i used to leave a bit of redex in the fuel over winter and it seemed to cure the 'spring starting problem' but that was pre-ethanol, so not sure any more, do I drain the tank and run carb dry or what ? I did have a diaphragm in the Briggs and Stratton carb on our mower go bad towards end of last year ( which is about when the big 'E' started appearing in fuel by us, the mower had been fine for previous 7 years, turned out quicker and pretty cheap ( about £25 ) to buy a whole new carb and fit it, but may well get a repair kit for the old one and maybe keep it as a spare . USA has much more experience of Ethanol than we do, and some proper horror stories from there.

[Sir Trev]

Hugh has been in hibernation since the end of October. I did add some stabiliser to his tank which is pretty full so fingers crossed when he gets wheeled out of the garage in another few weeks (hopefully).

[SV650rules]

Originally Posted by Sir Trev

Hugh has been in hibernation since the end of October. I did add some stabiliser to his tank which is pretty full so fingers crossed when he gets wheeled out of the garage in another few weeks (hopefully).

Maybe a marmalade sandwich will tempt Hugh to start .......

[Sir Trev]

The bear is not allowed in my garage.

[Kenzie]

So by trying to reduce emissions they add more ethanol which increases fuel consumption which then means you burn more fuel to get the same distance so the net effect is emissions remain the same? Why bother?