Since we're talking about C-150's........
I have a question for you 150 pilots out there;
How do you manage your O-200's fuel mixture on cross-countrys?
Do you run it full rich?
Do you lean it till it begins to run rough, then enrichen it slightly?
Do you lean it with the EGT gauge?
Do you run it Rich of Peak?
Do you run it Lean of Peak? (Is that even possible?)
And;
What is the optimum RPM setting, in reference to engine longevity, NOT speed...NOT economy, but to get her to her TBO?
I await your wisdom.