AMSOIL EXTENDED-LIFE 5W-30 100% SYNTHETIC MOTOR OIL

AMSOIL Extended-Life 5W-30 100% Synthetic Motor Oil delivers 20,000-mile drain intervals and 37% more cleaning power than AMSOIL OE Synthetic Motor Oil, making it a strong upgrade for drivers who want fewer oil changes without compromising engine protection.

Modern gasoline engines, especially turbocharged GDI designs found in vehicles like the Ford F-150 EcoBoost, Chevy Silverado 5.3L, Toyota Camry, Honda CR-V, and Jeep Grand Cherokee, generate extreme heat and combustion pressures that break down conventional and lower-tier synthetic oils well before an extended drain interval is reached. Oil that thickens or thins under stress leads to increased oil consumption, carbon deposits on pistons and valves, and accelerated bearing wear. The lubricant you choose has to hold up across the full service interval, not just the first few thousand miles.

RESISTS OIL BREAKDOWN OVER EXTENDED DRAIN INTERVALS
Some oils break down and significantly increase in viscosity after extended periods of high-temperature operation. That viscosity change drives up oil consumption, makes cold starts harder, and deposits sludge throughout the engine. AMSOIL Extended-Life 5W-30 maintains its fluidity under extreme conditions, with a viscosity index of 166 (ASTM D2270) that reflects a stable base oil formulation resistant to thermal degradation. The NOACK volatility result of 9.0% weight loss (ASTM D5800) confirms low evaporative loss at high temperatures, which directly reduces oil consumption between changes.

PROTECTS AGAINST LOW-SPEED PRE-IGNITION IN TURBOCHARGED GDI ENGINES
Low-speed pre-ignition (LSPI) is the spontaneous ignition of the fuel/air mixture before the spark plug fires. It occurs most frequently in turbocharged gasoline direct-injection engines under low-speed, high-load conditions, and it can destroy pistons and connecting rods in a matter of seconds. Most new engines from Ford, GM, Hyundai, and Stellantis use GDI and turbocharging together, which heightens the risk. AMSOIL Extended-Life 5W-30 uses a chemistry specifically formulated to guard against LSPI events, protecting critical internal components in engines like the Ford 2.7L and 3.5L EcoBoost, GM 2.0T and 2.7L Turbo, and Hyundai 2.5T.

37% MORE ENGINE CLEANING POWER
Carbon deposits and sludge accumulate faster when oil change intervals are stretched. An oil running 15,000 or 20,000 miles needs detergent and dispersant additives that stay active across the entire drain, not just the first half. AMSOIL Extended-Life 5W-30 delivers 37% more cleaning power compared to AMSOIL OE Synthetic Motor Oil, thanks to a boosted additive package that neutralizes acids and suspends contaminants to prevent them from forming sludge, varnish, and carbon deposits on critical engine surfaces.

COLD-WEATHER PROTECTION AND FAST OIL FLOW AT STARTUP
Cold starts account for a significant share of total engine wear because oil needs time to circulate after sitting overnight. AMSOIL Extended-Life 5W-30 has a pour point of -41°C (-42°F) per ASTM D97 and a cold-cranking simulator (CCS) viscosity of 5,329 cP at -30°C (ASTM D5293). That means it flows quickly through oil galleries and reaches bearings, cam lobes, and the valvetrain faster during sub-zero mornings, reducing dry-start wear in cold climates.

REDUCES MAINTENANCE FOR DAILY DRIVERS AND FLEETS
For fleet managers running service vans, delivery trucks, or company cars, fewer oil changes translate directly to less vehicle downtime and lower maintenance costs. For personal vehicles, it means less time spent at the shop and less waste oil generated. The 20,000-mile normal-service drain interval and the 12,000-mile severe-service interval give you flexibility to change oil on your schedule rather than the oil's.

Specifications and Compatibility
AMSOIL Extended-Life 5W-30 (XLF) meets the following specifications: API SQ (Resource Conserving), SP, SN Plus; ILSAC GF-7A, GF-6A, GF-5; GM dexos1 Gen 3 (supersedes dexos1 Gen 2, 4718M, 6094M, LL-A-025); ACEA A1/B1, A5/B5; Chrysler MS-6395; Ford WSS-M2C929-A, WSS-M2C946-A, WSS-M2C946-B1, WSS-M2C961-A1, WSS-M2C971-A1; Honda HTO-06.

This product is compatible with conventional and other synthetic motor oils. Mixing other oils with AMSOIL motor oils will shorten the oil's life expectancy and reduce its performance benefits. Aftermarket oil additives are not recommended.

Service Life
Normal Service: Up to 20,000 miles (32,000 km) or one year, whichever comes first, in personal vehicles not operating under severe service.

Severe Service: Up to 12,000 miles (20,000 km) or one year, whichever comes first. Severe service conditions include commercial or fleet vehicles, excessive idling, frequent towing, hauling, plowing, or driving in dusty conditions. Modified engines (non-stock), racing vehicles, and vehicles using alternative fuels (E85, CNG, propane, etc.) are excluded from extended drain interval recommendations.

For best performance, use AMSOIL Oil Filters. Do not exceed 12,000 miles (20,000 km) or one year with other brand filters unless longer intervals are recommended by the vehicle manufacturer. Always change the filter when changing oil. Check oil regularly to maintain proper fill levels.