What oil does ATP recommend using?

AeroShell 15W-50 is recommended by ATP because it offers a good balance between viscosity, temperature tolerance, and operational performance, particularly in aviation applications. The 15W-50 formulation provides excellent lubrication under varying temperature conditions, which is crucial given the diverse environments in which aircraft operate. This oil helps to maintain optimal engine performance and longevity by ensuring effective protection against wear, deposits, and thermal breakdown, even in high-stress situations commonly faced during flight.

This recommendation aligns with industry standards for piston engine oils in aviation, focusing on providing pilots and maintenance personnel with reliable options that comply with performance specifications needed for safe and effective aircraft operation.