Pennzoil High Mileage Full Synthetic 5W-30 motor oil is specifically created for engines with over 75,000 miles. It is designed with seal swell technology to help rejuvenate old, dry seals and is suitable for use in new and old engines. Providing all the same benefits as our Pennzoil Full Synthetic motor oil, it offers better engine protection (compared to Pennzoil motor oil) and is backed by both our 10,000-mile protection guarantee* and 10-year, 300,000-mile warranty* to help you go farther between oil changes. Pennzoil High Mileage Full Synthetic is formulated for longer drain intervals than conventional and synthetic blend motor oils, protects your engine against extreme temperatures, and helps prevent sludge and deposit build-up. (*Limited Lubrication Warranty of engine protection up to 10 years or 300,000 miles, whichever comes first, and oil drain interval protection of 10,000 miles or one year, whichever comes first, if you (1) switch to and exclusively use Pennzoil motor oils; and (2) follow all oil change recommendations in your owner's manual. For oil drain interval protection, you must use an oil filter designed for longer oil change intervals and follow OEM manual and vehicle's oil life sensor to maintain OEM warranty. Your engine must have fewer than 125,000 miles and have been manufactured in the past 72 months. Other conditions apply, including enrollment and receipt requirements. See full details and enroll at pennzoil.com/warranty.)