Running out of propane gas, just as hungry friends gather around your grill, is a hassle. To keep tempers from flaring some gas grills come with a fuel gauge but if yours didn't, you can buy one.

It's finally summer, which means it's time to break out the grill, give it a thorough cleaning, slap some patties on it, and have your first backyard cookout of the year. But how do you know how much ...