1045425 - Phillips 66 Type A Aviation Oil 120AD

1045425 – Phillips 66® Type A Aviation Oil 120AD

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Overview

The Phillips 66® Type A 120AD is a premium, single-grade, Ashless Dispersant (AD) engine oil, engineered for the demanding environment of aviation piston engines. This is a heavy-duty, SAE 60 mineral-based oil specifically formulated to provide exceptional protection for large, high-output radial and opposed engines, particularly those operating in high ambient temperatures or under severe load conditions. It is the definitive choice for many of the world's most iconic vintage, aerobatic, and agricultural aircraft.

The core of this oil's performance is its advanced ashless dispersant additive package. This formulation is designed to keep engines exceptionally clean by holding combustion byproducts, such as carbon, soot, and sludge, in suspension within the oil. This prevents the formation of harmful deposits on critical components like pistons, rings, and valve guides. The additive package also provides superior anti-wear protection for cams and lifters, as well as rust and corrosion protection for internal engine parts during operation and periods of inactivity. As a product from one of the most trusted names in aviation lubrication, the Type A 120AD is the benchmark for engine protection in the most demanding conditions.

Key Features

• Genuine Phillips 66® Product: The industry standard for quality and reliability, approved by the FAA and major engine manufacturers.

• Ashless Dispersant (AD) Technology: A state-of-the-art additive package that minimizes deposits, neutralizes acids, and keeps engines clean for maximum performance and TBO.

• Superior Wear & Scuff Protection: High film strength and anti-wear additives provide a robust lubricating barrier, protecting highly loaded parts like cams, lifters, and bearings from metal-to-metal contact.

• Excellent Deposit Control: The dispersant action prevents the formation of sludge, varnish, and carbon deposits, ensuring free piston ring movement and optimal heat transfer.

• High-Temperature Performance: The SAE 60 (Aviation Grade 120) viscosity is specifically for operation in high ambient temperatures and under the severe loads of large radial engines.

• Corrosion & Rust Protection: Additives protect internal steel components from rust and corrosion, a critical feature for engines that may sit idle for periods.

Technical Specifications

• Part Number: 1045425

• Product Name: Type A Aviation Oil 120AD

• OEM Manufacturer: Phillips 66®

• Oil Type: Single-Grade Ashless Dispersant Mineral Oil

• Aviation Grade: 120

• SAE Viscosity Grade: 60

• Governing Specifications: Fully approved against SAE Standard J1899. Formerly qualified under U.S. Military Specification MIL-L-22851D. Approved by Lycoming and Continental Motors.

Aircraft Compatibility

The 120AD grade is primarily intended for use in large, high-output radial engines, and in some opposed engines operating in very hot climates.

• Engine Families:

  • Pratt & Whitney (R-985, R-1340, R-1830, R-2000, R-2800)

  • Wright Aeronautical (R-1820, R-2600, R-3350)

  • Large displacement Continental and Lycoming opposed engines (in very high ambient temperatures).

• Common Aircraft Applications:

  • Vintage & Warbird Aircraft (e.g., North American T-6/SNJ, T-28; Vought F4U Corsair; Grumman F6F Hellcat; Boeing B-17)

  • Agricultural Aircraft (e.g., Air Tractor, Thrush)

  • Classic Transport Aircraft (e.g., Douglas DC-3, de Havilland Canada DHC-2 Beaver)

Note: This is a flight-critical fluid. The specific engine or airframe maintenance manual is the final and absolute authority for determining the correct oil type and grade for a given engine and operating condition.

Why Choose Type A 120AD?

For large, air-cooled piston engines, oil is not just a lubricant—it is a primary cooling and cleaning fluid. The Phillips 66 Type A 120AD is engineered for this threefold mission. Its robust AD formulation is the key to engine longevity, preventing the ring-sticking and deposit formation that robs an engine of power and leads to premature overhaul. Its high film strength and SAE 60 viscosity provide the thick, protective barrier needed to prevent metal-to-metal wear under the immense combustion pressures of a high-horsepower radial engine. When it comes to protecting a priceless and irreplaceable powerplant, there is no substitute for the proven, certified performance of Phillips 66.

The "Ashless Dispersant" (AD) designation is a critical engineering feature. "Ashless" means the detergent and dispersant additives are non-metallic. They do not contain compounds like calcium or magnesium that, when burned in the combustion chamber, can form a hard, abrasive "ash" deposit. These ash deposits can foul spark plugs, cause valve guttering, and lead to destructive pre-ignition. "Dispersant" refers to the long-chain organic polymers in the additive package. These molecules have a polar "head" that attaches to contaminant particles (soot, sludge) and a non-polar "tail" that keeps them soluble in the bulk oil. This process, called peptization, effectively wraps each contaminant particle in a molecular envelope, preventing them from agglomerating and plating out as sludge on engine surfaces. The contaminants are then safely carried in suspension to the oil filter for removal.

Note: This is a chemical product. Always consult the product's Safety Data Sheet (SDS) for complete handling, storage, and personal protective equipment (PPE) information before use. Ensure you are using the correct oil grade for your engine and anticipated ambient temperatures as specified by the engine manufacturer.

Documentation

• Technical Data Sheet (TDS): Available for download from the official Phillips 66 Aviation website.

• Safety Data Sheet (SDS): Available for download from the official Phillips 66 Aviation website.