Do Gatwick have Avgas?
No. I was working at LGW when the AVGAS bowser was withdrawn in 1991 by the refuelling company. It had sat for 6 months with 2,000lit in it and only dispensed about 150lit. It was costing many more times the value of the AVGAS sales to keep it and the necessary staff training etc going so it had to go. Arrangements were made for the bowser at Redhill to be available should the need arise; this may have lapsed by now. If you go into LGW in a piston, make sure you've got enough to get out again. Redhill is only 5 mins flying time away.
The OddOne
ps the bowser would probably be refused entry to airside at Gatwick as it is not a clear plastic container of 100ml or less...
