93 Octane?
 

In the marketing materials, it says fuel requirement is 93 octane. Does this mean it will make less hp on 91 octane? :(

91 would be the lowest i'd go. i believe 91 is the lowest 'premium' in the US.

you could fill it with 87 and the car would still drive. you just risk the engine detonating.

http://en.wikipedia.org/wiki/Engine_knocking

Yeah, California only gets 91 octane as the highest available at the pumps. Sucks.

What about 89 octane?

use what the manufacturer recommends, which is 91 or above.

i don't know what the long term effects are if you use anything below, but the engine was tuned with a specific octane rating.

They are all california spec, so 91 is the actual requirement. The marketing materials also say it has a 15" rear rotor.. it doesn't.. unless you live in Japan and use their weird method of measuring rotors..

Curious... what weird method of measuring of rotors?

The smallest wheel size that fits the rotor and caliper assembly = the brake size. So any rotor and caliper that won't fit under a 14" wheel but will fit under a 15" wheel is a 15" rotor..

Weird but interesting, thanks.

Isn't there a difference in octane rating; RON vs. AKI?

Yes but one would assume any US materials would be AKI :)

I was thinking if they forgot to convert it over to the US system of AKI and left it in RON measurements. :D You know, kinda like the rear brake size?

I'd guess the college intern in the marketing department saw the world "premium fuel required" and converted that to "93 octane required" :)

91 AKI is 95 RON anyways I think, so the 93 doesn't make sense for that mistake.

i take it its okay to run racing fuel in these...110 octane?