I've tried liquids from local shops and also brands like: hangsen, el toro, liqua, best e-cigs, Mrs b's etc Tankwise, I've used the vision ce4 & ce5's. Aspire bdc, aspire single coil, kanger evod, kanger t3s, smok aro, anyvape Davide plus many more I can't remember!! . I normally run all the tanks at 4-4.2volt with 1.8ohm coils My favourite tanks are the anyvape Davide & the smok aro, both these tanks are bottom coil & take the kangerkanger type coils and I only buy genuine kanger coils II have noticed that the liquid does discolour after 1-2 days use but i don't get a burnt taste during that period. Surely I shouldn't have to be changing the coil that often though?