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Discussion Starter · #1 ·
Gents, I've got my Outback going for almost a week now. I filled up the tank the other day, but after 226km the needle of the gauge was already pointing below half.
Just filled it up again, 28 liters went in.
That's 8 km on a liter of petrol, isn't that a bit much? This was mostly highway driving on the CC.

What is the fuel consumption of your H6?

Thanks
 

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2008 OB Limited 2.5i, Portland OR USA
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[For those in the USA, 8 km/litre is about 18.8 MPG]

Although I don't have a number to offer to you (I have the Gen 3 2.5i H4 NA), this is not an unusual number for the H6 EZ3.0R, especially if you have your foot in it a lot.

Note also that many of us in the US live in urban areas where there is a winter time ethanol-content fuel mandate, and that tends to cut our efficiency a bit, perhaps 10%. At the moment, my mileage is about 25 MPG (11 km/litre) highway, and low 20s MPG (9 km/litre) around town with a lot of start / stop.
 

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Outback 2011 3.6R Premium (sold Jan 22)
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3,179 Posts
If driven conservatively you should be using around 10 to 11 litres per 100 kilometres.

if driven aggressively you will be using two to three times that.

I can repeatedly get 10.8 litres per 100 kilometres from my 2011 3.6 litre in suburban city driving which is 9.3 kilometres per litre, US 22MPG or UK 26MPG.

Hope this helps

Seagrass
 
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2002 Subaru Outback H6 VDC
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90 Posts
I can get up near US 27MPG pure highway driving (highest I’ve ever had is 28.4 for a tank) and anywhere between 16.5-21mpg mixed city driving, but usually close to 19-20 mpg.
 

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2008 OB Limited 2.5i, Portland OR USA
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This thread has now grown to include two systems of units (SI and US), along with expressing things as both an efficiency and as a consumption within the SI units (no idea that Australia and New Zealand did this differently!). And at times, Canadian members have also expressed efficiency in imperial gallon based units. Since we're an international forum, here's a table I made up to aid conversions, so we all have a sense of the numbers that are being quoted:

MPG (US)MPG (Imp)litres/100km (SI)km/litre (SI)
11.20231.20.432
22.40115.60.865
33.6077.11.30
44.8057.81.73
56.0046.22.16
67.2138.52.59
78.4133.03.03
89.6128.93.46
910.825.73.89
1012.023.14.32
1113.221.04.76
1214.419.35.19
1315.617.85.62
1416.816.56.05
1518.015.46.49
1619.214.56.92
1720.413.67.35
1821.612.87.78
1922.812.28.22
2024.011.68.65
2125.211.09.08
2226.410.59.51
2327.610.19.95
2428.89.6310.4
2530.09.2510.8
2631.28.8911.2
2732.48.5611.7
2833.68.2612.1
2934.87.9712.5
3036.07.7113.0
3137.27.4613.4
3238.47.2313.8
3339.67.0114.3
3440.86.8014.7
3542.06.6115.1
3643.26.4215.6
3744.46.2516.0
3845.66.0816.4
3946.85.9316.9
4048.05.7817.3
4149.25.6417.7
4250.45.5118.2
4351.65.3818.6
4452.85.2519.0
4554.05.1419.5
4655.25.0319.9
4756.44.9220.3
4857.64.8220.8
4958.84.7221.2
5060.04.6221.6

And finally - note there's an SI units crossover point that you can memorize as a means to check your math, if you're ust doing it in your head:

MPG (US)MPG (Imp)litres/100km (SI)km/litre (SI)
23.1214527.771010
 

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Discussion Starter · #6 ·
Thanks guys!
So it's not too much out of the ordinairy..
I have given it to her a couple of times, so that might explain a bit.

I see if I can control myself, and see what the milage is then.

10 liters on 100km's is pretty reasonable for a 6 cylinder with this weight.
 

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2011 Outback 3.6 Camellia Red Metallic, 2002 H6 Outback wagon VDC + 2001 2.5 VDC
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447 Posts
10L/100km, 28mpg UK, 24mpg US.. is entirely possible driven sensibly and cruising at 70-75mph/110-120kph..
Do check all the brakes are free and quality tyres with the correct pressures in helps a lot.. perhaps even run to a full fluids change, diffs and gearbox..
 

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2003 Subaru Outback 2.5
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301 Posts
I'm getting ~19-20mpg in my 4 cylinder. It's also all city driving to and from work about 3 miles away. Freeway I've gotten to about 30mpg.
 

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‘03 3.0R LL Bean Outback + ‘14 Forester Premium
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That’s what I’ve seen on our 3.0, 19 MPG City, 26 MPG highway. Best I’ve seen is 30 MPG driving 100 miles round trip at 40 MPH on a dirt road.
 
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