If your 8-cylinder Chevrolet Camaro has 3 5/8 gallons of gas left and you have 1 1/2 gallons of spare gas in the trunk, you can figure out how many miles that will take you with the calculator on your ...

Home Screen: First, it will come as a preloaded app on your iPhone, and will be on your home screen. You may need to swipe through a page or two to find it. Control Center: Open the Control Center and ...