I've got everything taken care of on the firewall and am starting to work on the frame. I will be painting the frame the same color as the body of the car and need it degreased as good as possible so I've decided to go with easy off oven cleaner since simple green was not working. Is this stuff safe for the frame? I got 2 cans of the blue stuff which is the fume free cleaner. Any opinions on if this will work or not?