I have a different brand of glow fuel which is 15/17 (nitro/oil) that I use for my glow engines. I think I'll mix a small batch of gas/glow fuel using this with the nitro cut down to 10% using the straight methanol. This should take one component out of the equation. I may try to get a fresh gallon of methanol as well. I live in South Carolina and the weather here is very humid. As for the needle settings, I think they are fine because this engine used to run well on gas/glow and I haven't touched the needles from their good setting. I have, however changed the brand of glow fuel.