Why do all fast food Cokes taste different?

Anyone notice that Wendy's Coke tastes like absolute crap? It has a horrible after taste and seriously takes like shit. Why did they not stick with Pepsi?


McDonalds Coke is good, but it tastes like they add 3x as much sugar to the mix as any others

Subways coke tastes like normal bottled coke.

Coke is disgusting when you buy it from fast food joints. It's that bad and fucks with your body. Cans/bottles are guarenteed pure once it leaves the factory. And cans have more carbonation and guarenteed fresh anytime.