Civic 06 fuel efficient problem

[yeehou]

Your car is designed for 91 octane. You'll get better response from 91, but if it was my car, I'd still use Optimax

Huh? I'm confused, I thought I get higher response and performance with 98 ron? Can you explain it to me?

[channon]

Huh? I'm confused, I thought I get higher response and performance with 98 ron? Can you explain it to me?

91 ron has less bursting power than 98 which means if u put 98 the car accelerates faster however there is less torque which means if u always have alot of ppl in ur car its better off with 91

thats my exp of putting different petrol