Good evening, gentlemen,
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Is there any chance of an additive to counteract it?
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In April, 2012 the Federation of British Historic Vehicle Clubs published the results of their testing programme on the efficacy of corrosion inhibition additives for petrol containing ethanol. At that time, additives were available from Miller's Oils, Flexolite and Frosts. Although Miller's offered three varieties of additives, two of them were mated with lead replacement, which makes them NO, NOs as far as our cars are concerned. All three were expensive, adding 3.3p(Flexolite) to 17.5p (Miller's) to the cost of one litre of fuel! Unfortunately, those additives did nothing to protect elastomers, polymers or plastics. Currently, I believe Viton is the only reliable replacement material for rubber-based items, such as O-rings and pipes. The whole background info can be found here:
www.fbhvc.co.uk/fuels
Derek.