Mobil High Mileage Full Synthetic Motor Oil 10W-30, 5 Quart — For engines over 75,000 miles, up to 10,000‑mile protection

Mobil 1 High Mileage Full Synthetic 10W-30 is a motor oil formulated to protect and clean engines with over 75,000 miles while allowing up to 10,000 miles between oil changes.*

If your car, SUV or light truck has high mileage, this Mobil 1 formulation is engineered to reduce wear, remove deposits and help control engine temperatures. It uses Mobil 1’s Triple Action Formula to address common age-related engine issues—friction, sludge and deposits—while meeting modern performance standards for both protection and fuel economy.

How does this oil protect older engines?

Mobil 1 High Mileage 10W-30 adds targeted additives to cushion worn components and minimize metal-to-metal contact. The formula helps prevent deposit buildup that can accelerate wear and impact performance.

• Viscosity 10W-30 for stable film strength under load
• Seal conditioners to reduce leaks in older gaskets and seals
• Anti-wear additives that lower friction between moving parts

Can it really extend oil change intervals?

This full-synthetic oil is designed to maintain protection and cleanliness for extended intervals—Mobil specifies protection for up to 10,000 miles or one year when used as directed. Performance will vary with driving conditions, vehicle type and maintenance history, so follow manufacturer recommendations.

• Formulated for up to 10,000 miles between changes under appropriate conditions*
• Controls oxidation to resist oil breakdown over longer service life
• Helps keep critical parts clean to sustain engine efficiency

What temperatures and engine types is 10W-30 suited for?

Mobil 1 High Mileage 10W-30 covers a wide operating range, offering low-temperature flow and robust high-temperature protection. It’s recommended for modern passenger cars, SUVs, light vans and trucks, including turbocharged and fuel-injected engines.

• Cold-crank protection to low temperatures improves start-up lubrication
• Heat protection up to high operating temperatures helps prevent thermal breakdown
• Approved for multi-valve, turbocharged and supercharged engines

What standards and benefits does it meet?

Mobil 1 High Mileage 10W-30 meets contemporary industry standards and carries performance benefits aimed at longevity and cleanliness. It also contributes to improved engine temperature control and fuel economy advantages compared with conventional oils.

• Meets ILSAC GF-6 performance standards for modern engines
• Helps reduce engine operating temperatures compared to conventional oils
• Formulated to help prevent low-speed pre-ignition (LSPI) and protect timing chains

Who is this for: Mobil 1 High Mileage Full Synthetic 10W-30 is intended for owners of higher-mileage cars, SUVs and light trucks who want stronger protection, deposit control and longer service intervals. It’s a practical choice for drivers looking to reduce engine wear, manage leaks and keep older engines running cleaner and cooler while meeting modern OEM performance expectations.

*Protects for up to 10,000 miles or 1 year, whichever comes first; results vary by vehicle and driving conditions. For details, see Mobil.US and vehicle manufacturer recommendations.