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 (see Warranty Information below). Pennzoil High Mileage Full Synthetic is formulated for longer drain intervals than conventional and synthetic blend motor oils, provides enhanced wear protection in high and low temperatures, excellent resistance to oil breakdown in severe environments, and helps prevent sludge and deposit build-up. (*Compared to Pennzoil motor oil. **Pennzoil Full Synthetic Lubrication Limited Warranty: Protection for up to 10,000 miles or one year, whichever comes first. Use an oil filter designed for longer oil change intervals and follow OEM manual and vehicle's oil life sensor to maintain OEM warranty. Excludes severe driving conditions, including racing and commercial use. Your engine must have fewer than 125,000 miles and have been manufactured in the past 72 months. Enrollment required. Other conditions apply. See pennzoil.com/warranty to enroll and for full details and terms.)