Re: Testing fuel for Ethanol
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The chemistry of ethanol is the same wherever you live. It actually boosts the octane level of petrol fuel by 3 or 4 points, thus is an effective anti knock agent (reducing the chance of detonation). ?The downside is that it absorbs water, bringing corrosion issues. It also leaches out the softeners in rubber components, like older fuel pipes. Components made after about 2012 are usually made from compounds which are not affected . ?There are numerous videos on YouTube showing how to remove the ethanol from petrol . What you have to remember is that, if you do this, you reduce the octane rating of your residue and you also remove some of the many other good additives ! So you need to add an octane booster at least ! ?I'm not clear why one would need to test for ethanol, the percentage is shown on the pumps in UK . Regular petrol is E10 ( 10%) and premium is E5 (5%) . It is worth adding a preserver to fuel which is going to be standing, all fuels degrade when exposed to air. Store it in sealed cans .
?Main thing is the degradation of rubber components, beware of brittle old pipes , replace them with modern ones . Same with old diaphragms and seals.
?Hope that helps somebody.
Huw
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