I would look for the synthetic ones. Valvoline used to or does make one. I think Prestone does to. A bit better at no corroding. The local import part store carries Castrol or some other brands for Euro cars. Suppose to be synthetic. If DOT 5 is the silicon stuff, I would not use it. Good hi temp performance, but I have heard some problems with very low temps. So for a summer car it might be good. Although, I do have it in my Bricklin, and can not remember any problems.