"On the insurance front I doubt any airfield has insurance in place that covers the sale or fuelling of motor unleaded for aircraft purposes. Be interesting to see the policy though!"
Why would an airfield have any responsibility for what is done by pilots/owners/maintainance? I operate out of a HIAL airport, and HIAL are not responsible for our aircraft meeting CAA requirements.
I'll continue to visit Oban, and put avgas in the tank there. Occasional avgas is recomended. I'll use auto petrol at my HIAL base.
This Oban problem affects the Oban based aircraft. Nothing seems to have changed for visitors.
I'm sorry for David Howett if he is being replaced. During the times when the Mull Fly-in was getting about 100 aircraft, large volumes of petrol were brought in, as well as an official avgas towed tanker from the then local supplier.