The Rig

iTrader: (13)

as title really, if they have standard ecu etc, or is optimax/octane booster a must, forget bhp figures, im on about general running of car.
and,if an uprated ecu is fitted, can it be used ?

cheers.....

gravelexpress

what is it a wrx or a wrx sti?? etc

1st car 96 wrx - ran on regular ul - no probs

2nd car 99 str - strictly super

but if you can go for super/ optimax why not?

The Rig

iTrader: (13)

its just a wrx, my99
i wanna use normal unleaded, i begrudge paying rip off prices making fat cats rich etc so dont want to pay more if i dont need to,as i said, stock bhp is enuff for me

gravelexpress

should be ok - others may disagree - dont cane her though!!!

i mean the safest bet is a higher knock level especially for a performance car - but if your thrashing it - why not opt for 1 out of 4 tanks on super?

The Rig

iTrader: (13)

is that waht the knock sensor is for, the digi dash thing, never understood that, it registers the octane level of fuel, or am i way off the mark ?!?!

cheers.

TonyBurns

iTrader: (3)

A bit out
It registers the noise levels coming from the cylinder(sp), the more noise the greater the chances of det, det=very bad as it normally kills your piston.
I was once given a great bit of advice by a well known mapper on here and that is it if was designed to run 100 ron fuel then run it on 100 ron.

Tony

The Rig

iTrader: (13)

are they meant to run on 100 ron tho ?
i mean,before optimax, super unleaded was all there was, or did every fill up require hughe amounts of that expensive octane boost stuff, made by the Nos doctor or summut LOL ?!?!

cheer for info

James Neill

iTrader: (1)

Remember though that your car is a Jap import (not a UK car) and in Japan they have 100 RON petrol.

TonyBurns

iTrader: (3)

Yes they are mapped for 100 ron fuel, not 95 or 97 ron.

Tony

CRX-Ownage

Tesco's are doing 99 octane atm