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Removing ethanol from petrol
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09-07-2021, 03:07 PM
In an idle moment I stumbled on this, on Youtube. Chap who is clearly a classic car owner seems to know what he is talking about.
Not at all sure I would want to do it but with the E10 rubbish about to be foisted on us, maybe I just might... https://youtu.be/b9mLbuUSt-0
09-07-2021, 05:04 PM
I should have posted this thread with a different title - Tool Porn.
09-07-2021, 05:12 PM
A flash toolbox is not necessarily a qualification but he seems to make sense and I’m persuaded that he is making a very good point and the result looks good. I’ll have to get a drum with tap and give it a try.
09-07-2021, 05:14 PM
Buggering about with large quantities of very flammable petrol is tempting providence. I'm not sure, even if it is proven to work that I could really be arsed. By all accounts there is very little in an Austin Seven that is likely to be affected by the change from E5 to E10, providing the car is used regularly. Leaving it standing over long periods due to the hygroscopic nature of ethanol is likely to be more detrimental. I have been using E10 in my RP for quite a while and all seems well. I guess time will tell.
09-07-2021, 05:23 PM
My thoughts entirely, RR. I don't like the idea of sloshing 10L of petrol around in a plastic drum. There is likely to be a small amount of petrol above the coloured water/ethanol that you drain off. Does this go down the sink, toilet or drain?
Those of us who are slightly accident prone don't need any encouragement to do something stupid! As my friend Steve would say 'what could possibly go wrong?'
09-07-2021, 06:14 PM
On the subject of ethanol, does all fuel available contain ethanol? Here in the US farm stores...co-ops, sell the real stuff, no ethanol. Not easy if you live far away from one of these stores, but I'm only a few miles distant.
Erich in Mukilteo
09-07-2021, 06:30 PM
(This post was last modified: 09-07-2021, 06:34 PM by Reckless Rat.)
Certainly in Western Europe, even cooking unleaded contains up to 5% ethanol, and has for some time. The problem is that the powers that be intend to phase out both low octane 95 and high octane 98 unleaded fuels (E5) and only make E10 fuels available (10% ethanol). This is where the worry comes as many pre-2002 cars are not E10 compliant, including classics.
However, some of the evidence is anecdotal. I know of a number of non-compliant vehicles, classic and modern, that have been running for years on E10 fuel without problems. Whether that will apply in the longer term is unknown. On the matter of the video in the original post, the claim about the dyed water extracting the ethanol has not (at least for me) been proven quantitatively. The only way to be sure is to properly analyse the fuel before treatment to determine the ethanol content and then repeat the analysis afterwards. Otherwise it is just snake-oil. 
09-07-2021, 06:41 PM
I see no reason why E10 should affect Austin Sevens. Certainly Cleveland Discol was no problem in the 60s.
It is very easy to attribute all one's woes to the latest change as happened when unleaded was introduced. The only case I am aware of is with Citroen SMs in hot climates. It was reported to me by probably the most knowledgeable man on the marque. He is also an outstanding mechanic/engineer. It only arises because of the very high underbonnet temperatures that the cars have. The bonnet is effectively sealed for aerodynamic reasons. Driving down into the South of France his car was fine running on UK 5% petrol. After filling up with 10% it ran badly, uneven and not pulling well. Even in this country there are problems with starting the car when hot. After a fast run of 200 miles up the A1 in very hot (for UK) weather the car wouldn't start after we had been into services. Opening the bonnet for a few minutes cured the problem
Jim
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