I never experiment with fuel.....
I just buy it, and use it.
I did hear about people adding Serpent premium lube (20ml) to a 5 liter can of Tornado, just to give your engine a bit more lube, and "afterrun"....
Last time I spoke to a guy at the track, who is sponsored by Putoline oil, they are developing lubricant especially for our type of engines.... lets wait and see.....