i have a classic wrx my94 import, and i run it on optimax which is about 98 ron. do i really need an octane booster? surely 98 ron is enough to run my car on without causing any problems! ive heard so many people say you do and lots saying you dont. im very confused! please help!

 

Well ive had MY94 WRX for a while now and always run it on optimax..The other day i started using Millers booster which i got in bulk and reset the ECU so it reset itself to run back on 100 ron whci is basically what the optimax and millers is.

It runs soooo much smoother and boosts a whole lot nicer

 

I would use Octane booster in every tank of fuel on a 94 import. I normally use like 1/2 a bottle per tank and the drive is always smooth.

A good word of advice is also to chuck some *GOOD* injector cleaner in evey now and then to get all the gung outa the injectors that the fuel filter has not picked up..

 

i just got a 93 import so Im right in thinking that i have to use
optimax and use a booster [ were do i get this from ]

do i need to also reset the ecu or should this be left

thx alot

 

Probably one of the best Octane boosters available is NF Race available from distributors shown HERE
Resetting the ECU when you are using octane booster will help as it will 're-learn' with the higher octane fuel allowing more ignition advance as it will have a higher knock threshold
ECU reset is shown HERE

Cheers