btwellz

Hi guys , quick question ? picking my sti up tomorrow and have a 200 mile trip home. What fuel is recomended and why , can I rub normal unlead just to chill getting me home, or should I be running super unleaded all the time? Does it matter what fuel I use ?

Ben

sti-chris

i only ever run shell v-power nothing less.
you could try a few different fuels and see what suits the car best , i would recommend sticking to sul fuel.

Mr-Confused

Running my WRX waggon happily on Tescos Super Unleaded. 99RON

To be honest, couldn't notice the difference between regular and super but then a waggon blob eye is only running 225bhp!

krisclarkuk

iTrader: (1)

QFT

bluenosewrx

iTrader: (2)

Depends what car and what mods it has mate, if its JDM then super unleaded, if it has been mapped,what fuel is it mapped for???

If its a UK car then its possible to run on Normal unleaded i think,what car did you get after all????

Let the modding begin,lol

Mac

btwellz

standard sti 2004 265bhp

Lady T

Super unleaded Tesco (99 ron) or shell V-power all the way mate

legacytt

i run mine on tesco super with it being an import, i did once put in bp ultima as they were an option if you couldnt get v power and i did notice a difference slight drop in power plus i didnt realise that bp is only 97 ron so have stuck with tescos much better fuel economy too.

btwellz

Is it a turbo thing then ? I used to run my vrs octavia on it , so much smoother and pulled better?

s70rjw

iTrader: (2)

A UK STI will run fine on 95 RON.
It will run better on V Power or Tesco 99. The higher octane fuel will increase your MPG by around 30miles per tank, offsetting the additional cost at the pump.

jonny_boi

i was using shell-v power and one day like the fool i am i was running on vapours, so i had to dart to sainsburys. i was getting 170 miles to a tank on the shell stuff. i put the same ammount of fuel in at sainburys ( brimmed the tank like you have to every other day haha ) and i ended up getting 200 miles from the sainsburys stuff. and it was cheaper.

Mr-Confused

Not really relevant but my mechanic mate runs his mk2 golf gti on the contents of fuel tanks when renault owners put derv in their petrol cars!

Not sure the mpg goes up for amount of diesel in it though!

Pretty sure it won't work for our imprezas though!

allsop83

iTrader: (9)

You will get away with normal unleaded but it will run more efficiently on Super Unleaded.

Better runing engine= more mpg/more power/happier engine

SUL actually works out cheaper thru the extra mpg even tho regular is cheaper at the pump

scooby-tc

iTrader: (2)

Tesco 99 mainly but V-power if im near a shell garage

my94wrx

iTrader: (4)

only ever run mine on v-power, have tried bp ultimate and the car didn't like it at all, haven't tried tesco 99 as there are no local stations.

DannyP78

So it seems that shell v-power or tesco 99 are good for foreign or modified imprezas. I have a UK 1998 turbo with no mods - would I still benefit from using these fuels?

Smudge46

iTrader: (1)

I alway's use V Power if i can get to a shell garage. it's got cleaning agents in it which help to remove harmful deposit build ups in your engine which can only be better in the long run.
The higher ron in the super unleaded is better for power and responsiveness from your engine as well.
The biggest seller of V Power for me is that it's keeping my engine clean. The extra power that you get from the high ron doesn't really bother me as i've had to fill my car up recently with normal unleaded because there wasn't any super on the pumps but my car still moved like s*** off a shovel.
I f*****g love my car!

austinwrx

cheapest possible normal unleaded.

I find it doesn't really marr my performance, sat in traffic


if on a track day- maybe there is some point. can't see point of slinging yr money about to be honest. maybe I'm wrong.

allsop83

iTrader: (9)

No offence but you are wrong....lol

Cheapest fuel possible will not have your engine running as efficiently as the Super Unleaded will and it is this engine efficiency that brings up the mpg.

It has been researched and tested many times that mpg is improved to an extent that the cost per mile is cheaper when using super unleaded. (IIRC Tesco 99 always seems to outperform V-Power....)

More expensive at the pumps but gives more mpg so overall is cheaper per mile.

And yes, 1998 Turbo will respond better to the Super Unleaded. All cars will really but you will notice the benefits more in higher- performance engines.

ryan_fong

Sorry to hijack the thread.
My car is MY04 JDM STi and it has been remapped to Shell V-Power.
I know it's better to stick with V-Power but the question is, can I use Tesco 99 occationally?

allsop83

iTrader: (9)

You can use Tesco99 whenever you want bud- will make no difference :-D
They have the same 99RON rating so are much and such the same as far as your engine map is concerned. If anything, going by recent studies, TEsco 99 is actually a better quality ;-)

ryan_fong

Cheers mate, now I know I have 2 choices..

DannyP78

OK cheers allsop83, I will make the change.

Smudge46 - good on ya, I f*****g love my car too.

TonyBurns

iTrader: (3)

UK STI's will NOT run fine on 95 ron fuel, they NEED super unleaded, the higher the octane the better (hence you see blown engines on them )

Tony

radius

tesco 99 for me mate....think of all those clubcard points u accumulate...lol...

shaggy6

iTrader: (2)

Im with you on that one.. im at tesco every other day, credit card in one hand and clubcard in the other.. all them points!!!

Mr-Confused

bollocks... forgot about the clubcard points...

shaggy6

iTrader: (2)

GRAVE mistake!!

Mr-Confused

Had the car for 5 or 6 weeks now and putting in at least £80 a week.

Major point loss...

Marx Mcrae

iTrader: (4)

Tesco 99 for my scoob.
Tried Vpower a couple of times but the car runs like a bag of sh*t