Diesel in Omni-fuel stove.
I've used an Omnifuel for 8 years, and found petrol to be best. Never bothered with gas.When using diesel, kerosine or domestic heating fuel you need to pre-heat the burner with methylated spirits.The diesel doesn'nt always light first time and can be sooty,but gives plenty of heat and is cheap.
You can use the petrol to pre-heat the burner ,so no carrying meths bottles , and it fires up first time. The fuel bottle also doubles as an extra litre for the bike. It has been a reliable and (fairly) easy to use bit of kit. Everything comes to pieces for cleaning using the special tool. When filling the bottle leave about 20% empty , to allow the pressure to build when pumping it up.If it's too full you get too much fuel going through which doesn't vaporise . Oh yeah, you also need to change the jet (supplied)in the burner when going from heavier fuel to petrol , a 2 minute job. I had an kerosine Optimus primus stove for 20 years ,before I got the Omnifuel and would certainly buy another.
So ... if your vehicle runs on diesel and you don't want the bother of seperate fuel , O.K. , otherwise use petrol and have an easy life.