The MK6 Fuel Consumption (Most / Least per Tank) Thread

[Ryan_R]

On Melbourne Cup day - I did this journey on one tank of fuel (was a spirited drive as well on the way up):

Google Maps

The drive up was actually abit quicker than the drive back too

[prise]

My 118 TSI with DSG has averaged 6.3 l/100km over 13,000 km since new so I normally get over 800km on each tank.

Driving on wet roads seems to add up to 0.3 l/100km - anyone else notice this? I suppose it makes sense given the amount of water the tyres have to clear at highway speeds.

[breezerboy]

I recently drove 960km from Mt. Waverley in Melbourne's south-east to Bilgola Plateau on Sydney's northern beaches in a 2009 MK6 118TSI (DSG) Golf with 2 adults, 2 kids and luggage and not only did I do it with one tank of (9 fuel, the trip computer said I had another 170km left to go! I averaged 5.5 litres per 100 km, travelling at the 100 / 110km/h speed limits along the Hume. Not bad I reckon - I did fill it up a lot (maybe too much?) prior, but still, I've done that drive many times in other cars and have never been close to making it in one fill. I thought I would need the TDI for that!

[Gonad]

Just done over 3700 kms in my new Golf R and the fuel consumption is reading 9.5 l/100km. This is off the back of a trip from Canberra to Gold Coast and back and the consumption was reading around the 11.5 mark prior to the trip.

In terms of km per tank, around Canberra with around 1000km on the clock I was struggling to get to 500km before refuelling, however during the road trip, I got 603 kms for the last stretch (Taree to Canberra) and filled the tank up with 55 L of BP 98 RON at the end.

FWIW - I've done this same trip in my old car (98 VT Yobbodore 3.6l V6 running 91 RON - 70 litre tank) many times, and although I stopped at the same servo in both cars, the Commodore would avg 550 kms per tank in town, but approx 800 km per tank when on this trip.

[Idle]

My 09 DSG TDI is starting to loosen up a bit now.

Last fill was 51.12 litres for exactly 930K of which about 300K was highway/twisty country road, rest give-and-take suburban.

I neither baby it (bad for diesels) nor thrash it (bad for any machine — although the rest of the traffic usually seems to drop back a long way when I'm first off from lights...) and rarely turn the AC off.

I fill to as much as the tank will take (not just to cutoff) — trickle the last few litres in to settle the foam and always at the same pump unless too far away (so far that has meant always at the same pump — fuel has been Caltex Vortex after the first tank.)

60+ years ago I couldn't get that out of 1920's Austin Chummies, of which I had several — nor a Triumph TR2.

However, I expect the other overheads will cancel out most savings on fuel (that wasn't why I bought a diesel — just wanted to see what they could do before I become too old to drive, which won't be long now (some less charitable rellies say it's already past time...))

[markwid]

I fill to as much as the tank will take (not just to cutoff) ; trickle the last few litres in

Hmnnn, I thought overfill is not a good thing?

Smart Car User : Don't Overfill your car Fuel Tank

[prise]

Hmnnn, I thought overfill is not a good thing?

Smart Car User : Don't Overfill your car Fuel Tank

I don't think this article is as relevant to diesel fuel as it doesn't have the same problem with expansion of vapour that petrol does. Diesel tanks can be brimmed provided there is enough space to allow for expansion of the fuel as it heats up. Assuming diesel comes out of the underground tanks at 15 deg and heats up to 45 deg in the vehicle fuel tank, the expansion of the fuel will be around 2.5% or just over a liter for a typical fill so it's not really a problem, expecially if the car is driven immediately afterwards.

Point 1) in the article doesn't apply in Australia as our servos don't use vapour recovery systems like are required in the US and many other countries (IMO they should in built up areas) so the excess will end up on your shoes

[Ryan_R]

Hehe - I know of one pump in particular at a Shell servo that didn't auto-stop when the tank was full - would always spill out

[Zoza]

So I picked up the car exactly 1 week ago. I've done ~500km both urban and freeway driving (M4/M5).

My fuel consumption is 15L/100km. I've noticed that if I leave it in D, this will go down to around 11-12L, however in S I'm looking at 15L.

Coming from a 6L V8, 15L/100km is quite efficient , however just wanted to know what everyone else is getting.

[DreamensioN]

Your car should also use less fuel as the engine loosen's up. Someone correct me if I'm wrong.