AeroShell W100 Plus Aviation Piston Oil, 6x1 qt Case — Single-Grade, Ashless-Dispersant for Rust Protection

This six-quart case of AeroShell Oil W100 Plus supplies pilots and maintenance teams with the benefits of an ashless-dispersant, single-grade formulation that resists heat and helps maintain engine cleanliness. Designed from high-viscosity-index base oils and a targeted additive package, it meets Lycoming requirements and is suitable for a wide range of certified piston engines. Note: shipping limited to the lower 48 U.S. states.

How does W100 Plus protect engines during storage and seasonal downtime?

AeroShell W100 Plus includes rust and corrosion inhibitors formulated to coat vulnerable components when the aircraft is parked for extended periods. While it gives significant protection against moisture and oxidation, long-term storage still benefits from additional preservation fluids when required.

• Advanced rust-inhibitor additives that reduce corrosion risk during inactivity
• Stable base oils that resist breakdown in hot-weather use and storage
• Recommended alternative (AeroShell Fluid 2F) for very long-term storage protection

Will this oil help reduce combustion chamber and spark plug deposits?

Yes—AeroShell W100 Plus uses a non-ash dispersant chemistry designed to minimize metallic ash deposits in combustion areas and on spark plugs. That cleaner-burning characteristic helps preserve ignition reliability and can reduce deposit-related maintenance intervals.

• Polymeric ashless dispersant reduces hard metallic ash formation
• Helps keep spark plugs cleaner under typical operating conditions
• Promotes combustion-chamber cleanliness without ash-forming additives

Is W100 Plus compatible with my engine and does it meet required additives?

AeroShell W100 Plus contains the Lycoming additive LW-16702 in the correct concentration and meets applicable Lycoming specifications and FAA airworthiness directive 80-04-03. It is compatible with other approved piston-engine oils, but mixing will dilute some of W100 Plus’s enhanced features.

• Includes LW-16702 additive for Lycoming-specified protection
• Meets FAA AD 80-04-03 requirements where applicable
• Compatible with other approved aviation piston oils; avoid routine mixing

What performance benefits can I expect at start-up and under heavy load?

Improved anti-wear additives in W100 Plus reduce start-up wear and protect bearings and valve train components under high shear stresses. The formulation’s higher viscosity index base stocks help the oil maintain protective film strength during prolonged high-power operations.

• Enhanced anti-wear chemistry protects critical parts at engine start
• High viscosity-index base oils resist shear and maintain film protection
• Formulation targets reduced metal-to-metal wear during heavy use

Who is this for? AeroShell Oil W100 Plus is aimed at general aviation owners, flight schools, and maintenance shops that want a reliable single-grade oil with modern ashless dispersant technology and added anti-wear/rust protection. It’s a good choice for pilots operating in warm climates or those seeking a trusted, Lycoming-compatible oil that helps reduce combustion deposits and protects engines during regular use and short-term storage. Shipments available to the contiguous United States only.