Here's a handy youtube site that I came across where the ethanol content of premium fuels is regularly tested.
Our member Luddite used to do his own tests but he hasn't posted anything for quite a while now.
Premium E5 fuels are allowed to contain UP TO 5% ethanol but Luddite's tests showed that Esso premium fuel contained zero ethanol.
I have used nothing else for many ears now and my carby 750 seems to survive winter lay-ups without the carbs gumming up and my steel tank appears to be rust free. For those that don't know, plastic tanks can swell due to water absorbtion by ethanol containing fuels.
Note that ethanol content can vary according to which part of the country you buy your fuel, but it seems from these test results that not only the Esso but also Shell premium E5 fuels (at least in the oxfordshire area) still contain no ethanol.
Worth making a note of the youtube site, I reckon.
It also shows how easy it is to conduct your own tests and towards the end he even describes how you don't even need a measuring cylinder if your only concern is to detect the presence of ethanol rather than to measure the actual % content. Though here I would add that (fairly obviously) a tall narrow container will give a more accurate result than a short fat one.
Our member Luddite used to do his own tests but he hasn't posted anything for quite a while now.
Premium E5 fuels are allowed to contain UP TO 5% ethanol but Luddite's tests showed that Esso premium fuel contained zero ethanol.
I have used nothing else for many ears now and my carby 750 seems to survive winter lay-ups without the carbs gumming up and my steel tank appears to be rust free. For those that don't know, plastic tanks can swell due to water absorbtion by ethanol containing fuels.
Note that ethanol content can vary according to which part of the country you buy your fuel, but it seems from these test results that not only the Esso but also Shell premium E5 fuels (at least in the oxfordshire area) still contain no ethanol.
Worth making a note of the youtube site, I reckon.
It also shows how easy it is to conduct your own tests and towards the end he even describes how you don't even need a measuring cylinder if your only concern is to detect the presence of ethanol rather than to measure the actual % content. Though here I would add that (fairly obviously) a tall narrow container will give a more accurate result than a short fat one.
