So I bought some methanol a few years ago at the dragstrip tu use to mix fuel. It has been stored in plastic fuel jugs . I have tried using it by mixing it with fuel that is higher intro than I want and my engine would not run on it at all. I just made Avery small amount to test. I also tried running it with no nitro and just some oil and the engine would not run either. Does methanol go bad stored in plastic fuel jugs? The hugs are Morgan fuel jugs. They have been stored in a cooland dry environment.