To paint fuel tanks or not.

[rs74]

Getting ready to order a few tanks so that I can put them on before mounting the cab. I am thinking about coating them with something but I don't know what. The frame and underneath cab and bed are all getting treated with SEM Rust Shield. I would use this on the tanks but it is black and I didn't think that it would be good due to the summer heat.

I know these are galvanize coated but I think it will rub off pretty easy with all the vibration on the straps. I just thought I would give it another layer of protection. Any suggestions?