OE 10W-40 Synthetic Motor Oil

   OE 10W-40 Synthetic Motor Oil

Benefits

Excellent Wear Protection
AMSOIL OE Synthetic Motor Oil provides outstanding wear protection and helps prevent damage to critical engine components such as pistons and camshafts. This added protection is especially important in harsh environments and for vehicles with small engines that require low-viscosity oils, which can increase crankshaft wear and impair valve timing—ultimately leading to costly repairs.
In the Peugeot TU3M Wear Test (CEC L-38-A-94), a requirement under the GM dexos1® Gen 2 specification, AMSOIL OE demonstrated 47% better protection than the minimum threshold during a 100-hour test on a 4-cylinder engine under severe wear conditions.

Prevention of LSPI (Low-Speed Pre-Ignition)
OE Synthetic Motor Oil features a unique chemical formulation that protects your engine from LSPI, a phenomenon where ignition occurs earlier than intended. LSPI is most commonly found in modern turbocharged, direct-injection engines and can cause serious damage to pistons and cylinders.
AMSOIL’s improved formula for OE oil significantly reduces LSPI events. It passed the GM dexos1 Gen 2 test 100%—with zero occurrences of LSPI across five consecutive tests.

Cleaner Engine
AMSOIL OE is made with 100% pure synthetic chemical structure, specifically formulated to eliminate harmful contaminants. It includes additives that clean the engine and disperse soot, helping remove sludge and deposits effectively. Its high resistance to chemical breakdown helps keep the engine clean and efficient.

Superior Protection
The synthetic base oils and advanced additives in AMSOIL OE provide excellent high-temperature performance and resist oil loss over time. The uniform molecular structure ensures that the oil remains fluid at low temperatures, making cold starts easier and delivering fast lubrication to reduce start-up wear.

Fuel Efficiency and Lower Emissions
OE Synthetic Motor Oil meets API SN PLUS specifications, which are designed to reduce emissions, improve fuel efficiency, and ensure compatibility with modern vehicle emission control systems. It also helps extend the life of catalytic converters.

Application

AMSOIL OE 5W-40 (OEB) is ideal for automatic transmissions and other applications requiring the following oil specifications:

• API SP, SN PLUS, SN

10W-40 OE (OEH)

API SP, SN PLUS, SN

Service Life

AMSOIL OE Synthetic Motor Oil is recommended for oil change intervals specified by the vehicle manufacturer. The oil filter should be replaced at every oil change.