I am changing the color of my KTM from orange to gray. I have an MX/C so that milky tank will have to be changed. With the gray plastic, I want a black tank, but my tank is perfect right now so I just want to paint it and not buy a new one (plus I would leave a little strip milky so I know how much gas there is). Is there any special paint I should use so that the occasional gas splash won't affect it or will just regular spray paint work?