Ok so we used White Fuel aka Coleman camping fuel as in your photo and mixed it with Klotz at 36:1.
I never saw any problems with the engine, in all respects it ran clean and reliable. We tested several boats with Zenoah, CYCC, and clone engines up to 4.5 hp little 26cc engines.
Watch the engine temps and tune. This fuel has a much lower octane than pump gas, about 55, and can cause detonation although I never saw any issues and I didn't need to adjust timing. Strange considering they claim 10:1 compression on these DLE engines. You can add Octane Boost to the batch which will help increase the octane to normal pump gas levels if you see the need.
Use a new NGK CM6 plug not the clone junk spark plugs too.
You might like this combo for your health reasons.