AMSOIL 0W-20 100% SYNTHETIC HIGH-MILEAGE MOTOR OIL

AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil delivers targeted cleaning, seal conditioning, and wear protection for engines with over 75,000 miles. It is a purpose-built formula designed to address the specific problems that develop as engines age, backed by a 12,000-mile/1-year drain interval.

Older engines accumulate sludge, lose seal integrity, and burn more oil. These aren't hypothetical issues. They show up as oil spots on the driveway, rising oil consumption between changes, and sluggish performance that gets worse over time. A standard motor oil wasn't formulated to reverse that kind of buildup or protect aging seals. That's where a high-mileage-specific synthetic oil earns its place.

67% SLUDGE REDUCTION IN INDEPENDENT TESTING
Sludge chokes oil passages and starves critical engine components of lubrication. AMSOIL 0W-20 High-Mileage Motor Oil was tested using a modified Sequence VH test (ASTM D8256) that first allowed sludge to accumulate in the engine, then switched to AMSOIL to measure cleanup performance. The result was a 67% reduction in total engine sludge during the cleanup phase. This matters for vehicles like the Toyota Camry 2.5L, Honda CR-V, or Subaru Outback with 100,000-plus miles where years of conventional oil changes may have left deposits behind.

UP TO 62% BETTER DEPOSIT PREVENTION THAN VALVOLINE AND MOBIL 1
In the industry-standard TEOST 33C test (ASTM D6335), required by the ILSAC GF-6 specification, AMSOIL 0W-20 High-Mileage Motor Oil produced just 15.4 mg of total deposits. Valvoline Full Synthetic High Mileage with MaxLife Technology 0W-20 produced 39.3 mg, and Mobil 1 High Mileage 0W-20 produced 40.5 mg. That's up to 62% fewer deposits compared to two of the most widely sold high-mileage 0W-20 motor oils on the market. Fewer deposits mean cleaner pistons, better ring seal, and more efficient combustion in engines like the Ford 2.0L EcoBoost, GM 2.5L Ecotec, or Nissan 2.5L QR25DE.

DURABLE VISCOSITY UNDER EXTREME CONDITIONS
As cylinders and piston rings wear, engines lose compression. A motor oil that shears down or thins out under stress compounds the problem. AMSOIL 0W-20 High-Mileage Motor Oil maintains its viscosity even during high-temperature, high-shear operation, with an HTHS viscosity of 2.76 cP (ASTM D5481) and a viscosity index of 173 (ASTM D2270). That combination of shear stability and cold-flow performance helps maintain proper film thickness across a wide operating range, from cold winter starts to sustained highway driving in summer heat.

OIL-CONSUMPTION CONTROL
High-mileage engines frequently burn oil between changes. Volatility is a major factor. When lighter oil molecules evaporate off under heat, oil level drops and emissions increase. AMSOIL 0W-20 High-Mileage Motor Oil records a NOACK volatility of 10.1% weight loss (ASTM D5800), helping resist thermal breakdown and reduce oil consumption in engines with over 75,000 miles. If your Hyundai Tucson, Kia Sorento, or Chevrolet Equinox is going through a quart between changes, this formula is built to address that.

SEAL CONDITIONING TO HELP PREVENT LEAKS
Hardened or shrunken seals are one of the most common sources of oil leaks in aging engines. AMSOIL 0W-20 High-Mileage Motor Oil includes a boosted dose of seal conditioners that help restore flexibility to aging gaskets and seals. This helps reduce the slow drips and seepage that develop around valve covers, oil pans, and rear main seals over time.

SPECIFICATIONS AND COMPATIBILITY
AMSOIL 0W-20 High-Mileage Motor Oil is API licensed and meets or exceeds the following specifications: API SQ, SP, SN Plus and earlier; ILSAC GF-7A, GF-6A, GF-5 and earlier; GM dexos1 Gen 3 (supersedes dexos1 Gen 2 and 6094M); Chrysler MS-6395; Ford WSS-M2C947-A, WSS-M2C947-B1, WSS-M2C962-A1, WSS-M2C972-A1. It is compatible with other conventional and synthetic motor oils, though mixing will reduce the performance benefits and shorten the oil's service life. Aftermarket oil additives are not recommended.

SERVICE LIFE
Normal service: up to 12,000 miles or one year, whichever comes first, in personal vehicles not operating under severe service. For severe service conditions, follow the severe-service drain interval prescribed by your vehicle manufacturer in the owner's manual.