Schedule an oil and filter change once the oil change light comes on. If you prefer to change the oil yourself, drain all the old oil, remove the old filter, then put in a fresh filter and new oil.

Dear Tom and Ray: I have an '07 Chevy Cobalt. I like the car, especially because it's red and has a spoiler. But it has an annoying feature. It has a computer that tells you various things, like your ...