My car is mapped to run on E5 plus 100mm NF per fill which makes approx 101ron, which is roughly the same as jap spec fuel,
So it would probibly be grand in any JDM car with the origional factory ecu map,
However, I'm sure there is more to petrol than ron rating, so a remap for peice of mind and to optimise your cars potential on whatever fuel you decide to use full time,
But if not mapping, Get as close to 102ron as possible,
They reckon half a bottle of Lucas gains 2ron per fill, NF is proven that 100mm boosts 35 litres (45) petrol by 2 ron,
Alot of lads on here use lucas and are very happy with it!
Best of luck
Dan