4G15 Mitsubishi Lancer Motor Compression Factor

Hello everyone. I just bought a Mitsubishi Lancer of 2006 Motor 4G15 SOHC (1500cc) No GDI. I am interested in knowing what the compression factor is, since this information is vital to know exactly what level of octane must have the gasoline that survey. I am currently beating 90 octane gasoline, ensuring that it is spring or another of good quality. The car works in the most good (not dull) and has a good power, but this could be due to the fact that as is full inject, the ECU, efficiently regulates the ignition process. It would be good if any of you, has a table of compression factors vs. Octane. Thank you!!

I do not have table but that engine with 95 octans is super and is what the manufacturer is recommended. without lead logically

Thanks, I'm going to take it into account.

Hello, I would tell you that you use fuel 95 or 97 octane the motor cup relationship 4G15 12 electronic injection valves is 10 to 1. greetings