You work out the maths..............MY97 Jap spec STI in a Liberty.
511kilometers  for 53.7 litres around town with a fair bit of hammering.
450 kilometers for 40 litres on a country run with a bit of hammering.
I can only use BP98 as its the only high octane fuel available in W.A. & I should be using 100 octane....... but I never get less than 530 K's to a tank, even after a long cruise hammering the crap out of it.

From a servo just out of Gosford, to Canberra, then a bit of in & out of canberra (maybeh 250 km highway, 150 city) Heritage averaged 9.2L/100km on 91 octane.

XXB4XX, thats not alot. Might need to get it checked unless its all city driving.

K&N Panel Filter and Resonectomy

11.4L / 100km (480km per full tank which i assume is 55) on BP Ultimate. Similar results with Mobile.

This is half freewa driving and peak hr taffic.

I think the b4 Tanks are 64L

For the guys that are only getting 380km a tank in a B4 or thats about 13.7L / 100Km you must be pushing it hard!! 

I think the car was rated at 10.8L /100Km round the town and 8.9L/100Km on the open road.

For thoes who dont know how to do the math ( (L / KM)) * 100) eg if you travelled 380KM and used 52L it would be 52 / 380 = .137  * 100 = 13.7 L/100km

Just remember guys keep your posts standard when listing your fuel results

Car:
Brand of Fuel:
Ron:
L/100Km:

Hi Guys,
             I've got a 93 Liberty RS Turbo,pod filter,3 inch turbo back exhaust,std engine IHI turbs.Best consumption so far is 330km/31 litres all h'way driving. With other EJ20 extractors and TD05h 330km/34 litres on h'way.This is how far I drive  from home to start work each week so it gives me a good idea on consumption.The worst I've ever done is 50km/15 litres or about a quater of a tank for the 50km trip but I was showing the workmates just how (bad it could be/hard it goes). So if I get roughly 10km/ litre on the highway I'm happy,around town well  :Dntknw: Cheers,Craig.

much to my suprise here are my results from caltex fuel

11.9L/100km


not that much differant from using shell

MY03 Sportshift

No mod

Only use BP Ultimate, car pings with Shell.

12.5-13L/100KM

WOW

Much to my suprise here are my last results

Car: 2001 B4

Fuel: BP Ultimate 98
1) 13.5l /100Km

Just to recap on my previous results

Fuel: Shell Optimax 98

1) 11.8L / 100km
2) 12.5L / 100km

Fuel: Caltex Vortex 98

1) 11.9L/100km

Witht the way alot of guys bag out shell and rave about BP / Caltex i would have thought that I would have gotten better fuel fuel economy out of  BP / Caltex rather then Shell.

It would be great if you guys keep posting your results each time you can remember when you fill up to get a better picture of which fuel is better to use.

yesterday i filled up 33.1L shell premium 95 for 328km.

just now i filled up with 7-11 premium 31.40L for 313.4km. 600 metres off a perfect 10.0L/100km

having regular @ 139.9c - 144.9c/litre is so gay. and mobil is blaming the summer in USA. pfft. wasn't it around $1.09/litre in january? so 35c increase in three months. doesn't help that the government has their hand in our pockets for everything else either.

HI my most recent fill was

Car: Liberty B4
Fuel: Caltex
RON: 98
10.7L / 100Km

not to bad and yes the price of petrol is out of controll considering most of it is TAX!!!

i get 11L per 100

approimately 51-52 litres gets me 440-450 if pushing it

light comes on at 420 pretty consistently

i believe the tank is 55 litres in the b4

ssjmark wrote:

but would i be better off using premium??

what is your opinion on this matter?
what would you use in my situation...?