Streamlined Bulk Buying: AeroShell Piston Oils on GSA Advantage
Piston aircraft engines are one of the hardest-working components in modern machinery, and the remarkable thing about them is that they have changed very little over the past six or seven decades. Yes, their ignition systems have undergone significant improvements, and fuel injection is now the standard on new engines; however, the overall design and operation remain remarkably unchanged since the 1930s and 1940s.
There have been many attempts to retrofit engines from automobiles to aircraft. Still, they usually fail because aircraft piston engines are purpose-built for the rigors of flight, which means operating at full-power settings for long stretches at a time, and being exclusively cooled by air.
Piston engine oils are the first line of defense in protecting piston engines, such as the Lycoming line of aircraft engines. Using AeroShell oil in your piston aircraft engines is a key ingredient for a long lifecycle and high reliability. Greenwood Aerospace is your preferred procurement specialist for bulk AeroShell oil purchases, serving federal and military customers. Let’s take a look!
About Piston Engine Oils
Piston aircraft engines are held to much higher standards than any other types of reciprocating engines in the world, and the reason is simple: the stakes are a lot higher. Engine components in a piston aircraft undergo considerable wear, and oil serves as a protective barrier that keeps them running at a high standard and reduces premature failures.
AeroShell piston engine oils are designed to protect and improve performance in aviation piston engines. They are formulated with high viscosity index base oils and non-metallic additives for stability, anti-foaming, and rust protection.
Greenwood Aerospace helps you maintain a stockpile of oils on hand to protect engine components and keep you airborne. For any questions, expedited delivery requests, large order inquiries, or to confirm product availability, reach out to Greenwood Aerospace at gsasales@greenwood.aero or give us a call at 580-865-6000 or 833-GSA-EBUY (833-472-3289)
Benefits of High-Performance AeroShell Oils
- Wear protection that minimizes damage to lifters, camshafts, and other engine components.
- A balanced additive package that keeps deposits from forming, reducing the risk of harmful combustion chamber deposits.
- Inherently stable oils, resisting breakdown under high shear conditions.
- Effective rust prevention is crucial when an aircraft remains idle during prolonged storage.
- Oils designed to reduce premature damage, helping operators reach TBO with fewer interruptions.
There is a simple rule in aviation maintenance: better oil equals longer service life. It really is that simple. Cutting corners with oil is a surefire way to increase wear and tear on critical parts over time.
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AeroShell Product Line for Piston Engines
All the AeroShell piston engine oils we carry are available in case quantities and are tied to a manufacturer’s part number (MPN) for easy, direct ordering from GSA Advantage via Greenwood Aerospace.

AeroShell Piston Engine Oil Lineup
Each AeroShell piston engine oil is available in case quantities and tied to a manufacturer part number (MPN) for direct ordering through GSA Advantage.
AeroShell W80 (SAE 40 Equivalent)
- MPN: 550041162 (80WQT-CASE)
- Case of 6 quarts
- A conventional single-grade ashless dispersant oil for cooler climates.
- Anti-wear protection and anti-foaming performance for normal operation.
AeroShell W100 (SAE 50 Equivalent)
- MPN: 550041164 (100WQT-CASE)
- Case of 6 quarts
- This is one of the most popular ashless dispersant oils for aviation piston engines.
- Fully approved by engine manufacturers for stability and long-term wear protection.
AeroShell W100 Plus (SAE 50 With Additives)
- MPN: 550041174 (100WPLUSQT-CASE)
- Case of 6 quarts
- W100 formula with extra anti-wear additive package for better rust prevention.
- For fleets where aircraft may be stored for extended periods or lifters must stay coated to prevent premature damage.
AeroShell 100 Straight Mineral Oil (SAE 50 Mineral)
- MPN: 550041171 (100QT-CASE)
- Case of 6 quarts
- Single-grade oil with no dispersant additives.
- Used for engine break-in and overhauls where non-ash-forming properties are required.
AeroShell 15W50 Multi-Grade Oil
- MPN: 550041165 (15W50QT-CASE)
- Case of 6 quarts
- Premium oil W 15W-50 semi-synthetic with polymeric additive package.
- For hot and cold climates, this oil reduces the need to switch between conventional single grades.
- Anti-wear, anti-rust, and anti-foaming performance.
AeroShell 5W30 Diesel Ultra (Jet A/Jet A-1 Fueled Diesel Piston Engines)*
- MPN: 550041177 (5W30LT-CASE)
- Case of 12 quarts
- Fully synthetic oil for aviation diesel piston engines running on Jet A or Jet A-1.
- Exceptional stability, anti-wear protection and reduces combustion chamber deposits.
- As more operators adopt new aircraft with diesel engines.
Procurement Through GSA Advantage

For government buyers, there is no easier or faster way to procure than through GSA Advantage. We are on the GSA Schedule for that specific purpose: to help you get past the red tape and buy bulk piston engine oils, along with other greases and lubricants.
GSA Advantage gives you streamlined access to all listed AeroShell piston oils, with no doubt about the final cost, delivery windows, or any of the other lingering issues that are so common with federal procurement.
We offer options for palletized shipments, bulk delivery, or case-by-case fulfillment, so make sure to contact us through our designated channels for GSA Advantage products, and we will work with you on your order.
Make sure to read up on how GSA Advantage benefits government buyers!
Final Thoughts on AeroShell Piston Oils and Additional Resources
AeroShell piston engine oils offer excellent protection from wear and tear for your fleet of piston engines, whether Lycoming or other brands. They are formulated to provide the best coverage for your fleet, from AeroShell oil W100 to Oil W 15W 50, and beyond. Thousands of satisfied customers across the world can’t be wrong.
Greenwood Aerospace provides direct access via GSA Advantage for streamlined ordering, and we always work with federal and military buyers on bulk orders to get the best prices around. You can contact us at gsasales@greenwood.aero | 580-865-6000 | 833-GSA-EBUY. These are dedicated contacts for GSA Advantage sales and support. Please give us a call or email, and we'll be happy to help you out!





