Valvoline High Mileage with MaxLife Technology Synthetic Blend Motor Oil is specially formulated to protect engines with over 75,000 miles. The proprietary formula protects against the four major causes of high mileage engine breakdown: wear, friction, heat and deposits. It also features premium seal conditioners that rejuvenate aging seals to help treat and prevent leaks. Valvoline High Mileage with MaxLife Technology is proven to maximize engine life.