He is not grey, and he will not ever grey out. He is registered as "Castaņo" which roughly translates to Brown, Auburn or Chestnut.
He has a black mane and tail that are not faded despite being outside 24/7, he has black points (legs, muzzle, etc..) and his body is almost golden at some spots, but he is mostly a brown color where he isn't black or gold. So you, like me, are thinking that he's bay. The kicker is that he has a dorsal stripe down his back, wth?
His dam is far darker than him, very dark brown or bay, I am unsure if she also has the dorsal stripe. His sire was white grey (like most of them lol), no baby pictures.
Would the presence of the dorsal stripe make him not bay? I have noticed that a lot of the non-grey PREs have a dorsal stripe.. What do you think is it a breed thing, or is he some weird color?
I can get some pictures today if my description is not good enough.