What is the Mobil High Endurance Motor Oil line of motor oils and what does it consist of?

This line of high-endurance engine oils, designed to provide protection during today's longer oil change intervals, includes four products -- Mobil Clean 5000, Mobil Clean High Mileage , Mobil Clean 7500, and Mobil 1 Extended Performance.. Each product in this complete line of oils is guaranteed to provide protection from lubricant related engine failure for up to 5,000, 7,500 and 15,000 miles, respectively. Mobil Clean 7500 is a synthetic blend formulation with a boosted level of cleaning performance, 18 percent beyond the level of even our premium Mobil Clean 5000 conventional motor oil, to keep your engine cleaner longer. ... more