Well it's nice to be made welcome, thank you Rainboe, I appreciate your rapid reply.
You obviously have all the answers, and please be aware that you have no need to label me as suspicious. Most of my days have been spent in the airline industry....
I understand from your reaction that fuel waxing is not an issue? Maybe you could direct me to the latest studies on the properties of jet fuel at low temperatures.. I would be delighted to find my own answers as you have suggested I do!!!!!!