I did a search and read a lot on this subject, but I couldn't seem to figure out what the consensus was since there was a lot of disagreement.

I just bought a DZ. I have 55 gallons of Wildcat 30% heli fuel. Fuel has 18% oil, higher viscosity. I've been feeding this fuel to my YS engines for a few years now without problems, but some of the threads on the DZ have me a bit concerned.

Will this fuel work in the DZ?

If the answer is not known, is there something I can easily check after a few tanks to verify the lower end is getting properly lubed, like visible oil in the lower engine?

ALSO, is there anything I need to be aware of when running this engine inverted.

Thanks

Since no one is answering your question i will .You have to use low viscosity fuels like Cool Power Heli 30% Power master and Magnum DZ blend. Cool Power is my favorite. The thicker viscosity oils just dont flow in the bottom end correctily on the DZ. Hopes this helps, in all other ys motors i love the wildcat fuel.

I have run mine in the Taylor craft inverted with no fuel related problems i have had some other issues but not inverted related or fuel related.