I have just got of the phone to the machine expert.
I asked the question can I use the new e10 fuel in my Honda mowers their are 4 at work and a large ride on with many other machines billy goats scarification machines + all the stihl equipment I mentioned earlier.
He answered no I have read up largely on this over long periods of time this shall rot the seals out in the engine and fuel lines , his advice is use the current time ultimate fuels that shall still exist it?s not worth risking it with good machines to save a few pence . Especially for home use where you might only use 20L in a hole year ! His actual words was tell the boss to stop being a tight ar*e tw*t but that?s another story .
He said he also recommends the last use of the year to use aspen fuel and store it with this Inside over the winter .
I am not recommending using the aspen as I think it?s over priced , all my machines will go on the bp ultimate and be stored run dry and empty as they always have been
Hope this is of some help pitlamp