Mobil 1 Extended Performance High Mileage Full Synthetic Oil 5W-30 — 6 Pack, 25,000‑Mile Protection

Mobil 1 Extended Performance High Mileage 5W-30 is a full synthetic motor oil formulated to protect older, high-mileage engines and maintain engine cleanliness for up to 25,000 miles between oil changes.

Mobil 1 Extended Performance High Mileage uses the brand’s Triple Action Formula and specialty synthetic additives to reduce deposits, control oxidation, and protect critical engine components in vehicles with higher mileage. This 6-pack delivers the performance benefits expected from Mobil 1—improved cold-start flow, enhanced protection against timing chain wear and pre-ignition, and compatibility with the latest ILSAC GF-7 specifications—packaged for convenient long-term maintenance.

How does this oil help high-mileage engines perform better?

The formula targets common wear and buildup issues found in engines with 75,000 miles or more. It includes detergents and dispersants that help remove sludge and prevent fresh deposits, while synthetic base stocks preserve viscosity under heat and stress.

• Designed for engines 75,000+ miles to address wear and leak potential
• Specialty additives reduce sludge and deposits in one oil change
• Synthetic base stocks maintain stable viscosity at high temperatures

What protection and service interval can I expect?

Mobil states this product protects for up to 25,000 miles or one year, whichever comes first, under appropriate use and proper oil monitoring. The oil provides superior oxidation control and resistance to viscosity breakdown that helps extend the interval between changes compared with conventional oils.

• Protection claim up to 25,000 miles or 1 year (per manufacturer guidance)
• Improved oxidation and thermal stability for extended drain intervals
• Formulated to meet ILSAC GF-7 performance and engine cleanliness targets

Will this oil improve fuel economy and cold starts?

The low-viscosity 5W-30 grade offers improved low-temperature flow for faster oil pickup at start-up, which reduces engine wear on cold mornings. Formulation improvements also help meet modern fuel-economy requirements compared to older-generation oils.

• 5W-30 viscosity gives better cold-start flow and quicker protection
• Engine cleanliness and lower friction can support improved fuel economy
• Meets modern fuel economy expectations versus baseline GF-7 requirement

How does this 6-pack make maintenance easier?

Buying a multi-pack supplies several oil changes at once, reducing trips to the store and ensuring you have the correct specification on hand. It’s a practical choice for DIYers, fleet owners, or anyone who prefers to stock up for seasonal or long-interval service.

• Six quarts per purchase for multiple oil changes or multiple vehicles
• Convenient supply for scheduled long-interval maintenance
• Consistent brand and specification across each bottle for reliability

Who is this for: Mobil 1 Extended Performance High Mileage 5W-30 (6 pack) is intended for drivers and technicians who maintain older or higher-mileage cars and light trucks, want the convenience of a bulk purchase, and prefer a full synthetic oil that targets deposit control, extended protection intervals, and modern low-temperature performance. Always follow your vehicle manufacturer’s oil specification and service recommendations when selecting motor oil.