GeeJayDoubleYou

as above, if i were to buy a jap import from 1994-99 (cos im not having much luck with the uk's i been looking at) does anything need doing with the ecu so that it runs ok on our cheaper uk fuel?
i seem to here of new engines etc being fitted to wrx's and not so much to the uk models, and some say this is because "jap cars are bad and cant run on our petrol"!.......are they right or wrong?????

prince_of_tokyo

fuel in japan is of a much higher octane than uk fuel as standard...over 100ron me thinks...therefor atleast while its not remapped use the highest octane available (tesco 99, v-power etc) preferably with some octane booster

if you carry on using crap grade fuel, u cause what is known as engine detonation/pinking/knock and that will screw your engine up

best bet...re-map

good-luck

StickyMicky

100 ron fuel was not available in japan until a certain date

prince_of_tokyo

lol, thanks for that...but i do that in comparison to the uk and the time, japs do have higher octane fuel