Autocar fuel tanks

[delta99]

I'm building the autocar dc dump as a logger. I want to weather the fuel tanks and steps. Does anyone know if they are steel or aluminum? Not sure whether to make them a little rusty, or just some chipped paint exposing aluminum

[delta99]

Well, I decided to use my artistic license. The tanks felt aluminum to me, and the steps steel

[Warren D]

I'd say you guessed right, I figure the round ones are aluminum and the rect ones are steel, especially with the diamond plate.