Mobil 1 Extended Performance synthetic motor oil provides guaranteed engine protection up to 15,000 miles, according to the manufacturer. Other Mobil 1 products do not promise the same life, but meet or exceed the requirements for recommended changes of Japanese, European and U.S. automobiles.
The Mobil 1 brand includes synthetic oils designed for specific purposes such as high mileage vehicles, racing engines and turbo diesel trucks.
The majority of auto manufacturers call for oil changes at intervals of 7,500 or 10,000 miles on new passenger vehicles. The longer intervals are often found in vehicles where the owner's manual specifies synthetic oil or a synthetic blend. Jaguars using synthetic oil have a 15,000 mile change schedule.