Ricky81 STi

I have been running on normal unleaded for a while now and see seems to be going alrite on it but would I be better going back to Super Unleaded?

dhorwich

normal unleaded in an STi5...!!!!!!!!!!!!!!!!!!

make sure you put at the very least super unleaded in..!!

Dan

RoShamBo

iTrader: (1)

Unless you are going everywhere at 2000 rpm then dont use normal unleaded....& even then I would be worried !
Sti5's use the Phase 2 Boxer engine which requires good grade of fuel.
Bear in mind that these engines are tuned to run on Japanese 100 RON fuel.
I personally run Optimax plus Millers.

Ro.

[Edited by RoShamBo - 10/16/2002 3:29:59 PM]

Gez

Try Optimax(98+ Ron) & NF(upto 6Ron increase). Tried Optimax & Millers and still had knock at 6000rpm. When running on Optimax and Nf i have never experienced any knock correction whatsoever.
Whatever you do DO NOT RUN ON 95RON ITS LETAL TO YOUR PISTONS.
Cheers

Gez

TBMeech

Ricky,

I wouldnt use normal u/l in my sti-v, its asking for trouble if you do have to use it just put a tenner in and run off boost till you can put real fuel in there, use a min of super u/l and nf, I however use Optimax and NF as the combined octane rating is the highest....

Hong Kong Phooey

highest RON fuel in this country (N.Ireland) is 97 SUL. afaik.

uxg

Doesn anyone now where I can get the NF stuff. Can you mail order it from anywhere?

Gez

Try

http://www.scoobyscene.co.uk/octane.htm

I have been using the stuff since my car came from Japan. It has never suffered from any knock correction as a result.

Cheers

Gez

uxg

Cheers Gez. I have been using Silkolene Pro Boost but have heard from several people now that the NF stuff is better. I just went on the website. Is it true you get 6 tankfuls from 1 bottle?

5 Type R

Those using NF Race Formula....

What ratio of fuel have you been putting it in with.

It says between 1ml-5ml per litre of fuel