How Often Should You Really Change Your Car's Oil?
If you are currently following the old oil change interval of every 3,000 miles, then it is likely that you are actually replacing your engine's oil far too often and costing yourself money. How do you determine an appropriate oil change interval for your vehicle?

Your car's owner's manual is usually a good place to start. Based on your car and your driving habits, your owner's manual will provide two different recommendations that you can choose from. Getting under the hood and doing things the old-fashioned way is a little more accurate.