Minimum Fuel Octane

[macrafic]

I have an Aerosport IO-360, standard compression, and am looking to have my fuel caps engraved with the minimum octane fuel. Anybody know what the minimum is, or where I can find out?

 

[BobTurner]

IIRC the info is on the engine data pate (?).
For someone to answer they'll need the full designation, the letters and numbers after 360.

 

[N941WR]

Here you go:
http://www.vansairforce.com/community/showthread.php?t=35765