Back when this post first started I mentioned I had used the Rustoleum gloss enamel on my Jeep CJ and a Bonco II. I just went out to check the type of Rustoleum I used and it was the standard gloss oil based Regal Red. I thinned it with mineral spirits but sprayed it on. That is hard paint. I tried to scratch it with a fingernail-no way-and then I keyed it. The key left a scratch but not all the way thru the paint-it will buff out. I didn't throw a rock at the Jeep-my neighbors might think I'd lost lost my mind but that stuff is hard. It touches up easily, that's why I used it on my off road CJ. I did spot primer the Jeep and used an HVLP sprayer in the interest of time, but it shouldn't make a difference, I put 3 coats on it and it took 1 1/2 quarts to paint the CJ. Some was lost to spraying. Just my experience in painting a vehicle with Rustoleum. By the way, the paint's been on the Jeep since last May and it sits outside in all weather.