Grey horses/ponies with black mane/tail - do they keep it?

[Fools Motto]

Or will the manes/tails turn grey eventually too?

My grey pony has a dark mane, which hasn't changed colour , unlike her dark tail which now is clearly grey

Ever hopeful that she will stay the way she is, but somehow I think I'm wishful thinking as she is already 'greyer' now than she has ever been. (She is 3 BTW).

 

[rowan666]

My dapple grey luso is 9 and she still has a dark mane tail is grey though