Shell Piston oil – Aeroshell W120

AeroShell Oil W120 SAE Grade 60 Ashless Dispersant Aircraft Oil

Every aircraft piston engine loves AeroShell Oil, whether it's just a baby or has been flying since the time of the Wright Brothers. Once it gets its first taste of this high-performance AeroShell W120 SAE grade ashless dispersant aircraft oil, there's no going back. It's like enjoying a steady diet of T-bone steak and then being given a greasy hamburger. No way, right? This specially formulated piston engine oil comes highly recommended, because it effectively lubricates and protects your engine's parts through long, hard use.

AeroShell W-120 oil does not contain any metallic fibers that can combust, and it holds dirt for the filter to catch. This keeps engine parts clean as they're efficiently lubricated. Is AeroShell W120 the correct viscosity for your plane? It's ideal if you're flying in ambient temperatures between approximately 5 to 79 degrees Fahrenheit.

Hard engine use doesn't just thin oil. It also takes its properties to the limit. Therefore, change the oil frequently and use AeroShell for the best performance.


AeroShell W Oils are intended for use in four-stroke cycle certified reciprocating piston engines, including fuel-injected and turbocharged engines. AeroShell W Oils are not recommended for use in automotive engines. For automotive engines converted for use in aircraft, the specific engine manufacturer or the conversion agency should be consulted for proper oil recommendation.

Most radial engine operators use AeroShell Oil W120 in warm weather operations, with AeroShell Oil W100 or AeroShell Oil W 15W-50 being used in cooler ambient temperatures.

AeroShell Oil W100 or AeroShell Oil W 15W-50 are the common choices for most operators of Lycoming and Continental flat engines but, during colder parts of the year, AeroShell Oil W80 in place of AeroShell Oil W100 would be an excellent choice.

Although some engine manufacturers and overhaulers suggest in their service bulletins the use of a straight mineral oil in new or recently overhauled engines for break-in, other rebuilders and manufacturers, especially for engines such as the Lycoming O-320H, recommend use of an AeroShell W Oil for break-in. Operators should therefore check with engine rebuilders or manufacturers for the correct recommendations for the specific engine.