UK fuel

[Gerry M]

Hi all

When my RX arrives would I be best fitting a Apexi or similar ecu so the car cam be mapped to run UK super unleaded or similar, It has a RE Amemiya ECU at the moment, or is it ok to use fuel & an octane booster??

Thanks

[Robertio]

You\'ll be OK with SUL/Optimax and an octane booster.  If you can afford it an Apexi or similar will (once mapped) obviously remove the hassle of carrying OB with you at all times.

[MintyFresh]

is octaine booster a nessesity?  will using Super Unleaded/Optimax alone be sufficient?

Something i never really thought about.

[Robertio]

Depends on your car, mods, and how lucky you feel  Lots of people run their cars on just SUL/Optimax and don\'t have problems.

Personally I wouldn\'t - the car was mapped for Japan\'s 100RON fuel, so while there may be enough tolerance in the map to cope with only 97, what happens if you get a bad tank of fuel?  Maybe it will be OK, maybe it wont.  For the sake of an extra 2-3 quid a tank I think it\'s worth it for the peace of mind.  Unfortunately it\'s not a question with a straight yes or no answer.