maybe i should test out the last two hot plugs i own again. the fuel doesn't seem to be bad at all. Jus another question if ur hobbyshop doesn't sell its fuel and it passes say about 8 months would they just toss the fuel? Sometimes ppl say that u could be buying 3 yr old fuel . If i had bad fuel would any other signs be noticible. Like the engine would die while u run it? Or something else