Plan B, I am going to fill a container with E10 petrol and insert cut off fuel hose different types of rubber hose some brass fittings and some soldered tin plus assorted "O" rings, put a lid on the container and leave it in my shed , I will keep checking to see if anything deteriorates.
David Byrne
That's not a particularly good way to test the hoses, E10 resistant hoses may have a fluoro-polymer lining but the rest may be normal nitrile rubber- which will of course be attacked over time. Most petrol hoses aren't designed for full immersion
