What to Do If You Fill Your Car Up With the Wrong Gas?
by Lifehacker Staff from Lifehacker on (#1RMX3)
Have you ever filled your car with fuel only to realize you accidentally hit regular" instead premium" or vice versa? If this has happened to you, there's no need to panic. You probably haven't destroyed your engine, and it probably won't do any harm. But it's not a mistake you should make very often.