Is it ok to mix Jet A1 based fuel with 1-K Kerosene based fuel? The UAT in my roo is full of kero based fuel and now I am trying out Jet A1 based fuel. Should I empty the UAT, or just go ahead and let the fuels mix.

I asked the same question some time back, it seems it is fine to mix the two.

Mix it! Fly it! Don't crash it! Have fun with it!

No problems Anurag.....