Paint was bought about 4 years ago. Opened this week. Plastic lock ring was still intact. Stirred until mixed good and thin. Paint is gloss black and not engine green as labeled.
Maybe some chemical reaction or something happened. It has happened to me numerous times over the years when letting paint, particularly cans, sit for a while. Usually happens when it is not 100 percent sealed.
I imagine MACs will send you a new can of correct paint free of charge. Reference a link to your comment here documenting your issue in your Email/claim to them.
And be sure to give them credit for solving a supplier issue at their cost here afterwards.
Not a surprise, dont blame the supplier, i bought a pint of engine paint from two other dealers both cifferent one was almost black te other had a blue tint to it.
so i sprayed the color i liked from the spray can and took it to a auto parts store they scanned it and mixed me a quart of paint that matched what i was using in the spray can,
I have also just sprayed from the spray can into its lid and used a brush for toouch up.
I'm not blaming Mac's but the the spray can of Antique Ford Engine Green Engine Enamel, RSP6, I bought from them also sprayed black when I first used it in 2017. However, the printed expiration date is 05-16-2013 !!!
However, it looks nice on my shelf.
I would surely suspect that age is the 'culprit'.