MY07-09 2.5i Fuel Consumption

[Chilliman]

Well I decided to go down to Margaret River on the weekend - averaged 6.8L/100km on the way down, then managed a brief spell at 6.6L/100km on the way back up. The read out went no higher than 7.2L/100km during relaxed driving through the vineyards.Filled up with BP Ultimate and still have about 150km on the distance-to-empty read out after nearly 700km of driving.

[Nipple06]

If you do 90km/h i have seen avg of 16km/l on my way from Sydney to Bowral note the m2 and m7 where used and i might have had the pod filter on then to

[chris12]

I'm getting around 10.4L/10km - 11.4L/100km depending on where and how I drive. Inner suburbs Melbourne generally.

[arrow224]

Conservative driving style. Around town 8.6L-9.0L depending on how many lights/heavy traffic I get to and from work. On highway/open roads, I can get down to 7.6L. Tyre pressures set to 38psi with standard wheel/tyre combo.

Long term average over last 6,000km (~5,000 of which is mine, rest is previous owner) is currently at 9.4L. It was up at 10L when I got the car ~7 months ago.

[<GB>]

how big are the tanks? my cars heavily modified and the trip thin is saying on the freeway 7-8lper 100 km but it lies lol im getting 400-500 out of a tank on the free way, around town im not sure it drinks it

[sjm69]

i'm getting around 9-9.4l per 100
around 600km to a tank

[chuckp]

7.6 - 7.8 per 100km, predominately highway driving. No mods as of yet

[dag92]

in 10,000k's since I've had the car I've averaged 8.2L/100km mixed driving, freeways, highways and around town

[AlpineRaven]

Average 8lit per 100 city 25% and highway 75%
Cheers
AP

[HyRax]

My personal best consumption has been 758.4 kilometres on one tank of BP Ultimate on a 1,200 kilometre round trip from Sydney to Temora (60.5 litres on the next refill with a new estimated distance-to-empty reported as 860K's).

The car reported consumption of between 8.4 litres and 9.0 litres per 100 kilometres at 110kph and 100kph respectively. No air-con (vents on "fresh" mode), windows closed, a recent 10w40 oil change, a recent Subaru Fuel Additive addition, cruise control all the way. Tyres at 38psi all round. Ambient temperature ranged from 12 to 19 degrees from dawn to dusk on the day in question.

My average consumption in city travel is about 10-11 litres per 100 kilometres thanks to a bit of lead foot, with a personal best of about 9.6 litres per 100 kilometres in a passive week.

Aside from an XRT tune, the car has no mods.

[Bezzza]

Quick question for you all if anyone can help.

I recently had an Injector clean done and changed my air filter to a K&N high flow and have been getting 500km easily from normal driving around town. Also a couple of weeks ago mid tank I removed my resonator, noticed no real drop in km in the next half tank of driving.

Now my problem. I Filled up the car a week ago and have noticed I've been chewing through A LOT of fuel since (250km with about quarter tank left). My driving has not change drastically in the week since filling up.

I'm thinking maybe it is because of removing the resonator but surely it wouldn't make such a huge difference? Also used 95 not 98 octane, once again surely it wouldn't change the fuel Usage that much?

Anyone able to possible shed some light on my predicament?

[HyRax]

Put the resonator back in and see if your consumption improves again.

[Bezzza]

I think I will after this full tank runs out, then fill with same fuel and do a mini experiment about the consumptions haha!

[brennrod]

hey guys im pretty new to this forum and subaru's in general. I drive a 2008 liberty auto 2.5i, from what ive been reading i should be getting around 10L/100Km the first time ive checked it last night im sitting on 8Km/1L which is pretty average. so im curious as to what im doing wrong. And no it wasnt harsh driving.

[rooby]

My personal best consumption has been 758.4 kilometres on one tank of BP Ultimate on a 1,200 kilometre round trip from Sydney to Temora (60.5 litres on the next refill with a new estimated distance-to-empty reported as 860K's).

You're going the wrong way if that's 1200kms guessing theres some additional non highway driving in there too, which makes it an even better effort.

60.5l , you're a braver man than I. I put 57.5 in the other day and by that time there was a gap between the needle and the empty line and the trip computer had been reading zero for a while.