she's coming soon,the new arrival of an 09' c.t.--l'm like a kid waiting for xmas morning!!

wanting to know if you gents think there is benefit in running her on 99 octane instead of 95.

in my soon to go rr sport s/c ( which has been a brilliant motor for me) l tried 95,97 and 99 ron and did not really detect any difference.

thanks for your views.

i don't really think there is a performance effect, the only thing is when you run on higher octane, your fuel consumption goes lower.

i find it more responsive with higher octane

choice - always the issue - we only have 91 so good luck