Pennzoil High Mileage Full Synthetic 5W-20 Motor Oil is specifically created for engines with 75,000 miles or more. It is designed with seal swell technology to reduce oil consumption in high-mileage vehicles. Seal conditioners help rejuvenate old, dry seals. Formulated to provide all the same benefits as our Pennzoil Full Synthetic motor oil, it offers better engine protection and is backed by a 10,000-mile protection guarantee to help you go farther between oil changes.