AeroShell Oil 120 Break-In is an SAE 60 straight mineral aviation piston engine oil developed for use during the break-in of newly rebuilt or overhauled engines. Supplied in a 55-gallon drum, it is an efficient choice for engine shops, maintenance facilities, and fleet operators needing bulk quantities.

This oil is blended without dispersant additives, allowing controlled wear of piston rings and cylinder walls. This controlled wear helps achieve proper ring seating, prevents glazing, and ensures strong compression once the break-in period is complete.

Features and Benefits

• SAE 60 straight mineral oil formulated for piston engine break-in

• Promotes correct ring seating and controlled wear

• Reduces glazing risk and supports stable compression

• Bulk 55-gallon drum packaging for high-volume operators

Applications

• Aviation piston engines after overhaul or rebuild

• Engine shops, maintenance facilities, and fleet operators

• Aircraft requiring dedicated break-in oil for initial conditioning

AeroShell 120 Break-In Oil in the 55-gallon drum provides dependable lubrication and effective engine conditioning, making it a reliable solution for large-scale engine maintenance operations.