AMSOIL OE 10W-30 100% SYNTHETIC MOTOR OIL

AMSOIL OE 10W-30 100% Synthetic Motor Oil delivers full-synthetic engine protection engineered specifically for the longer drain intervals recommended by vehicle manufacturers. It is a direct, high-performance replacement for OEM-branded oils in gasoline engines that call for a 10W-30 viscosity, including popular GM, Ford, and Chrysler trucks, SUVs, and sedans.

Modern gasoline engines are under more stress than ever. Smaller displacements, direct injection, and turbocharging push operating temperatures higher while relying on thinner oil films to do the same job heavier oils once handled. At the same time, OEMs are extending oil change intervals, meaning the oil has to hold up longer against heat, oxidation, soot, and combustion byproducts. A conventional or low-quality synthetic oil that breaks down mid-interval leaves critical parts like camshafts, pistons, and bearings exposed.

47% MORE WEAR PROTECTION THAN THE GM DEXOS1 GEN 2 STANDARD REQUIRES
The Peugeot TU3M Wear Test (CEC L-38-A-94) is one of the key benchmarks a motor oil must pass to earn GM dexos1 Gen 2 approval. It subjects a four-cylinder engine to 100 hours of extreme, wear-inducing conditions and then measures cam lobe wear. AMSOIL OE Synthetic Motor Oil delivered 47% more wear protection than the maximum allowable limit set by that specification. For engines like the GM 5.3L V8, Ford 5.0L Coyote, or Chrysler 5.7L Hemi running a 10W-30, that margin translates to better long-term protection of camshafts, piston rings, and bearings across the full OEM drain interval.

100% PROTECTION AGAINST LOW-SPEED PRE-IGNITION
LSPI is the spontaneous ignition of the fuel-air mixture before spark-triggered combustion. It produces violent pressure spikes that can crack piston ring lands and damage connecting rods. Turbocharged GDI engines, which are now standard across most new vehicle lineups from GM, Ford, and Hyundai/Kia, are especially susceptible. AMSOIL OE recorded zero LSPI events across five consecutive runs of the engine test required by the GM dexos1 Gen 2 specification. That result reflects a deliberate additive chemistry designed to minimize the oil-droplet interactions in the combustion chamber that trigger pre-ignition events.

FIGHTS SLUDGE AND DEPOSITS IN HOTTER-RUNNING ENGINES
Smaller displacement turbocharged engines like the GM 2.7L Turbo, Ford 2.3L EcoBoost, and Chrysler 2.0L Turbo run significantly hotter than their naturally aspirated predecessors. That heat accelerates oil oxidation, which leads to sludge, varnish, and piston deposits. OE 10W-30 uses 100% synthetic base oils with a uniform molecular structure that resists chemical breakdown far more effectively than conventional base stocks. Detergent and dispersant additives suspend contaminants and prevent them from settling on engine surfaces, keeping oil passages and ring grooves clean throughout the service interval.

PROTECTS ACROSS THE FULL TEMPERATURE RANGE
At high temperatures, OE 10W-30 resists thinning and thermal breakdown to control oil consumption and maintain a protective film on bearing surfaces. At cold temperatures, its synthetic base oils flow readily for easier cold starts and rapid lubrication of upper-engine components. The CCS viscosity of 4636 cP at -25°C confirms its cold-cranking capability, and a pour point of -44°C (-47°F) means it stays fluid in extreme winter conditions. That combination reduces dry-start wear in northern climates and provides stable protection during sustained highway driving in summer heat.

FUEL ECONOMY AND EMISSIONS SYSTEM COMPATIBILITY
OE 10W-30 is API-licensed and carries the Resource Conserving designation, meaning it has passed fuel-economy testing required by the API. It is formulated to be compatible with modern emissions-control hardware, including catalytic converters and oxygen sensors, promoting proper function and long service life of those components.

Specifications and Approvals
AMSOIL OE 10W-30 (OET) meets the following specifications: API SP (Resource Conserving), SN PLUS, SM; ACEA A1/B1, A5/B5; GM 6094M, 4718M; Chrysler MS-6395; Ford WSS-M2C205-A; ILSAC GF-6A, GF-5, GF-4. It is compatible with other synthetic and conventional motor oils, though mixing will shorten the life expectancy and reduce the performance benefits of AMSOIL motor oil. Aftermarket oil additives are not recommended.

Service Life
In gasoline-fueled vehicles, AMSOIL OE 10W-30 is recommended for the oil change intervals stated by the vehicle manufacturer or as indicated by the vehicle's oil life monitoring system. Change the oil filter at every oil change.