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Phillips 66 Type M 20W-50
Phillips 66 Type M 20W-50 is generally recommended and used as a break-in oil for newly overhauled aircraft engines and is often used by engine overhaul and repair shops for the initial run-in of aircraft piston engines. Type M 20W-50 is designed for owners and pilots who want the performance of multi-viscosity, mineral-based piston engine aviation oil without dispersant additives.
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