our KING RANCH has dyed mocha colored seats front two rows are all leather...
i gently wash them with a dab of leather cleaner from lexol and a warm soft sponge.
let them dry and condition with lexol, put it on midly heavy and let it soak in, over night if i can
then buff with a soft cloth the next day. it smells like a saddle shop and seems to be keeping the leather soft and subtle..i do however have a place that i wore the dye down in a spot about the size 1/4" round from my pants belt loop, but its hard to notice unless your are looking for it.
rear row get mothers vinyl leather conditioner to keep the tops from drying out.
NOW when i sold the 2013 KR F150...i saw it a few days after we traded it in. the seats were liberally coated with something that really brought out the grain and and reddish brown in the leather, looked brand new...it was FORD leather conditioner??? my book recommends lexol as well
i have no idea who makes fords leather stuff, but it looked fantastic