One of the things that holds diesel back here in the US is the residual smell of the burnt fuel. Granted the raw fuel ether smell is strong but that flashes off quick and when running burns. The residual oil left on the ship is what is hard to get rid of. This seems to be from the kero used. The kero has aromatics that linger. Some have tried to cover it up with various scents added to the fuel but now you have foo-foo smell and aromatic, kinda like throwing cologne on after working up strong BO, smells twice as bad.
I have tried to do a kero less fuel using high ether starter fluids. With out the kero you need something that calms the ether from detonation. Mineral oil (straight wt 35 SAE) does this and provides very good lubrication. This mix is not the most powerful but for stunt and sport flying is OK. In these starter fluids like Johnsen's Premium Starting Fluid 50% you get 50% ether and the balance is heptane which has similar heat value to kero but no aromatic smell. To do the mix you need to set up a jar with mix levels marked on the side for the ether and oil. Put the oil in first then have the lid in place with a small hole to insert the tube from the starter fluid straw, spray in the SF, mix, fuel ship fly. I like to have all the components in a small cooler with a few ice packs to cool them. Don't let the ship sit in the sun after fueling, the ether can evaporate and change the mix.
Attached is a Excel spreadsheet with Starter Fluid brands, chemical info and various diesel fuel mixes.
Best, DennisT