Mobil Mobil 1 Extended Performance High Mileage Full Synthetic Motor Oil 5W-30, 1 Qt (6-Pack) — up to 20,000‑mile protection, seal

Mobil 1 Extended Performance High Mileage 5W-30 is a full-synthetic engine oil formulated to give vehicles with over 75,000 miles enhanced protection, cleanliness, and up to 20,000 miles between oil changes.*

This advanced full-synthetic motor oil is engineered for older engines that need extra care to preserve performance and reduce wear. Mobil 1 combines its Triple Action+ Formula with high thermal stability and low-temperature flow to protect critical components, help control deposits, and support fuel efficiency in modern gasoline and diesel engines.

How does this oil protect high-mileage engines?

Mobil 1 Extended Performance High Mileage 5W-30 is designed to guard seals and internal parts common to vehicles with higher mileage. Its formulation helps reduce leaks, minimize sludge and varnish formation, and maintain oil pressure and lubrication under stress.

• Engineered for engines with over 75,000 miles to address age-related wear
• Helps prevent leaks by conditioning seals and gaskets
• Resists deposits and sludge for cleaner internals
• Maintains protection under high thermal stress up to 500°F

Can I go up to 20,000 miles between oil changes with this product?

Mobil advertises protection for up to 20,000 miles or one year, whichever comes first, when using this oil. Follow the vehicle manufacturer’s recommendations and consider driving conditions; extended drain intervals are supported by the formula but should align with service guidelines and monitoring.

• Formulated to sustain protection for extended drain intervals*
• Ideal for routine highway driving and typical operating conditions
• Check owner’s manual and warranty terms before extending service intervals
• Monitor oil condition and engine performance between services

Is this oil suitable for modern performance and turbocharged engines?

Yes — Mobil 1 Extended Performance High Mileage 5W-30 meets ILSAC GF-6 standards and is suitable for many modern gasoline and diesel multi-valve, turbocharged, and supercharged engines. It provides protection against low-speed pre-ignition (LSPI) and helps protect timing chains and other critical components.

• Meets ILSAC GF-6 for modern engine compatibility
• Helps reduce LSPI risk in forced-induction engines
• Designed for passenger cars, SUVs, light trucks, and vans
• Recommended by ExxonMobil for a broad range of modern vehicles

What temperature ranges and operating conditions does it cover?

This 5W-30 grade provides strong low-temperature flow down to -40°F and protects internal components at elevated temperatures. Its thermal resilience helps maintain film strength and lubrication under both cold starts and high-heat operation.

• Cold-weather pumpability to -40°F for reliable starts
• Heat protection up to approximately 500°F for hot-running engines
• Helps sustain fuel economy and engine power through cleanliness
• Formulated to reduce wear across a wide variety of driving conditions

Who is this for: Mobil 1 Extended Performance High Mileage 5W-30 is aimed at owners of cars, SUVs, light vans, and light trucks that have surpassed roughly 75,000 miles and need a robust synthetic oil to reduce leaks, control deposits, and support longer drain intervals. It is a strong choice for drivers who want OEM-level compatibility for modern turbocharged engines, those seeking improved oil-change spacing when appropriate, and vehicle owners who prefer a widely recommended, mechanic-trusted synthetic oil. Always verify viscosity and service recommendations in your owner’s manual before switching oils.

*Protects for up to 20,000 miles or 1 year, whichever comes first; see Mobil.US for Limited Warranty details.