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Mobil 1 Extended Performance High Mileage 0W-20 is a full synthetic motor oil built for older engines, with seal conditioners and extra detergents to fight leaks, deposits and sludge. Mobil 1 rates it for up to 25,000 miles or one year between changes and says it meets ILSAC GF-7, with strong oxidation control and cold-start flow. It suits high-mileage cars and trucks that want a long-drain synthetic and are willing to follow the severe-service interval in their manual. Against conventional high-mileage oils it offers a longer claimed drain and better cold performance; against Mobil 1's standard Extended Performance it adds the high-mileage seal and cleaning package. Owners rate it highly, and the main cautions are the long interval claim and the three-bottle pack size.
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Lowest price we've seen: $69.80 on Nov 12 at Willy Goodprice. Tracked across 1 store since Nov 12.
Owners rate this oil very highly, praising smooth running, quiet cold starts and long change intervals in higher-mileage engines. Complaints are few and mostly about the long interval claim and pack size.
Mobil 1 Extended Performance High Mileage is a full synthetic 0W-20 motor oil. It uses Mobil 1's Triple Action Formula and is made for vehicles of all ages. Specialty components in the synthetic oil reduce deposits and sludge buildup to help keep critical engine parts clean and protected.
The oil protects for up to 25,000 miles or 1 year between oil changes, whichever comes first. It meets ILSAC GF-7 standards and offers oxidation control, protection against pre-ignition and timing chain wear, and cold-start and low-temperature performance.
This listing is a 3 pack of 5-quart containers.







