What is the oil grade specified for the Cessna 152?

The correct answer is that the specified oil grade for the Cessna 152 is AeroShell 15W-50. This oil grade is a multiviscosity oil that provides excellent protection and performance across a wide range of temperatures, which is essential for aircraft operating in varying environmental conditions. AeroShell 15W-50 is designed for use in piston engines, offering good lubricity and thermal stability, necessary for the performance of the Lycoming engine commonly found in the Cessna 152.

MIL-L-6082, while related to military specifications for lubricating oils, is not the specific recommendation for the Cessna 152. This aircraft typically relies on the more specialized performance features of AeroShell 15W-50.

SAE 30 is a single-grade oil that is less commonly used in modern aircraft engines like those in the Cessna 152, as it lacks the viscosity range that multigrade options provide, which can be crucial for ensuring proper lubrication during different stages of engine operation.

Lastly, MIL-L-1234 is not applicable for the Cessna 152, as it pertains to different specifications than those required for the aircraft’s oil system.

Understanding the importance of using the right oil grade is