This is a great recipe I got off a recipe list 11 years ago. We love pork chops in this, but can use fish, beef and chicken, too. Don't marinate it in a Tupperware container, with all the carbonation, you will have to clean your refrigerator.....ask me how I know this! Use a Ziploc bag.
1 can Pepsi or Coke
1/2 c Soy sauce
3 cloves garlic, minced
Put meat in the marinade for at least 4 hours or overnight. Take out and grill!