Hi all.
We have a 1975 Cessna 172M with Lycoming O-320-E2D engine. In this engine we have AeroShell W100 Plus oil filled to the 6 QT mark.
The other day while flying straight and level at 3,000' MSL, 69*F OAT, full rich mixture, CHTs were in the 350-375 range, and 2500 RPM, the oil temps rose...