Hi Andy,
I sympathise with your family health problems at this time. I wondered why you had "vanished" for a while.

I came across a reference, online somewhere, about bio-lubrication. It had been found that a very small amount of copper in the lube made a fantasic difference to the lubes performance and lack of engine wear.

Now for a challenge.... being as how it was so good then make another batch of that "unusual" fuel mix. I bet you wish you had details of what went into that can and in what amounts []

Reg