i dont know if mitsu changed this but only touchup paint they have available is the pen type, and they suck.

 

So what is the best touch up paint?

 

you can go to a parts house and get them to mix a lil bit of paint or you can use the pen type, mitsu also has the brush type but only in certain paint codes, the pen type you have to fill the chip or scratch with paint then let it dry, and then apply the clear coat and let that dry and you are good to go