I am restoring a 1951 Desoto. I have some rustoleum laying around and wanted to know peoples experience with it. I have heard both good and bad reviews of it. I personally found it slow drying and pretty weak. Is there any paint I can get for around $50 at somewhere like home depot or sherwin williams that would be better and last longer? I am going to be painting the engine bay and underside of the car. Any help, advice, tips, personal experience, etc. would be greatly appreciated.