Hi All

Have recently bought a 2004 plate STi, the car was remapped by Andy Forest so has the switchable map via the demister button, I have always run the car on V Power... what other fuels and octane rating can I use ?

Thx

 

you can use methanol with v power but the car has to be mapped for it and race fuel, but very expensive and again car has to be mapped for it.

nothing better than v power for day to day fuel

 

Tesco 99 or Shell V-Power ONLY !!!

 

i`ve only ever used v power but now the shell garage near me has moved so tesco momentum 99 is the next closest, is this as good as v power then?

 

The general consensus on here is yes.

 

https://www.scoobynet.com/scoobynet-...co-99-ron.html

There you have.

 

Is it okay to use super unleaded from Waitrose? I used to go Tescos up the road, but my splitter catches when I leave the garage so I've had to go elsewhere...

 

from what Ive read on here either is good. The one to avoid is BP ultimate.

 

Again only from reading too many threads on here, most supermarket fuels are poor quality. The 'super' bit means that they just add a higher octane. Tesco Momentum is supposedly better than most other supermarket fuels and comparable to V power, just dont ask me how or why.

 

You dont have a switchable map for fuel, all you have is a switchable boost level (high + low boost.). You should really stick with the fuel that its mapped for. If you have to use a lesser fuel than v-power,(all other fuels) you should take your time and not thrash it.

 

if you cant get the fuel it was mapped for, run it off boost, until you can get to back to AF with your fuel of choice in the car. imo

 

slightly off topic but why is BP ultima fuel so bad for imprezas?

 

Wouldn't NF octane booster be a reasonable addition which needn't be mapped in immediately?

 

I see no real reason why not, so long as the car is mapped for it

Andy remapped my last car (05STI) on Sainsburys SUL.
Was approx 335bhp.

 

How would I find this out? It has the PPP which includes mapping doesn't it?

 

As i would have put it as well lol, tesco is on its day as good a vpower but it does get let down by quality variation. sometimes its better than others but its always good

 

Surely the best thing to do would be to give Andy a quick ring or drop him an email with the details of the car and he'll be able to tell you exactly what fuel you can safely use

 

Regarding Tesco, what if it is a Tesco/Esso petrol station? Will it still have the higher Tesco fuel?

 

andy is on holiday just now i think