Has anyone had any problems with Aspen Four Stroke fuel. Without going into a lot of detail at present, we have reports of an out of the box BS engine refusing to run at all on Aspen but then running fine on pump fuel , Also BS Sprint engines that have been running fine on pump fuel but refusing to run on Aspen after service - carb clean and new diaphragms etc. Also, apparent hardening of Sprint diaphragms when Aspen is used.
All seems rather strange, are there any reports of Aspen issues your side of the pond ?