You need to change your oil every 3,000 miles
Once upon a time, this was the case, and many oil companies and lube shops still push this idea. Now, most cars made within the last decade or so require oil changes every 5,000 to 7,500 miles depending on the manufacturer. The better chemical composition and extensive use of synthetic oils, as well as superior engine design, have improved enough to allow for longer intervals between oil changes. Schedule your oil changes based on your owner’s manual recommendations. Otherwise, you’re pouring money down the drain.