in us our countries.....we have's the 93 octanes and we uses thems to fuels the vehicle for the driving.
yeah, i think it is the metric rating. i.e. mph<kmph yard<meter
my truck runs 200 on the freeway in europe! kmph

2007 Sierra, 370 C.I. , Custom CompCam, ProEdge 3600 converter, 4.11's with eaton LSD, Foose 20's, DynoTune Nitrous, Patriot CNC'd heads