I swear to god Coca-cola has lemon juice in it (yes, I spelled it with a hyphen because that’s how it’s spelled. Look on the can.) and Pepsi doesn’t. You can even smell it. If you can’t tell the difference you’re either crazy or you’ve been eating a lot of spicy food.
Also, Pepsi is at least 5% more thirst quenching per sip.
I have no idea if that’s due to the lemon juice or sodium, or what.
Pepsi vs. Coke: Pepsi.