Official Fuel Economy Thread (formerly Highway economy).

[WannaTig]

I just love my Tig more and more!

Picked her up 2 months ago yesterday, and have put 2070k on the clock. I've only just had to fill her up for the second time this morning (had a full tank when picked up).

Pretty impressed, over 2000km on two tanks.

[Transporter]

That's great; can you give us more details?
Do you do a lot of hwy driving?
And what is it in L/100km? If you keep record, of course.

[NZTiguan]

That's great, the best I've got out of my Tig on a run is 6.6l/100k or 43 mpg (imp) but that won't get you quite 1000 km a tank (tank is 64 litres so you'd have to average 6.4l/100k (over 44 mpg (imp)). Mind you mine was on some pretty windy and hilly roads including crossing the "backbone" of the South Island twice so I guess on flat going it would be readily achievable. Great work though, would be interested to know what your driving conditions were.

Cheers

[Sanman]

I assume that's diesel figures you're all quoting.
My 103 TDI does about 7.5l/100km on the run to work in medium traffic but 6.5l/100km on the run home, Consistently. I can't explain the difference, the traffic conditions are a little worse if anything on the return run. It maybe that it uses a lot more fuel when its cold in the morning. Summer's coming, I can check the theory then!

[NZTiguan]

There's no doubt that "accessories" suck up fuel. I saw an interesting doco on sky a while back using a BMW 5 series and comparing fuel usage vs air-con, wipers, heater, headlights, air temp etc etc and when they were running at night in the cold and wet with everything operating it used something like 15% more fuel, the figures were quite a shock. I don't go out of my way to drive economically and so the figures I've got out of the Tiguan have really impressed me.

Cheers

[Torn]

Did a 450km round trip on the weekend 2 days after i picked it up almost half highwway and half city driving and averaged 8.3l/100km

thats in a TSI147

few more tanks and will have a better idea

[WannaTig]

Yep, in a diesel.
Has done a bit of highway driving, trips to the border and back. Also some short runs around the burbs. I'm kind of a nanna driver so maybe that helps go through less juice.
Now I've done the sums: over 2000kms on about 120L of fuel means less than 6L/100km which seems extremely conservative. When I've kept an eye on the consumption bizzo in the MDI it's usually around 6.5-6.8.
Not that I'm complaining!!!

[Sanman]

There are two average fuel meters -
ø1 which records the fuel consumption on that run ( reset if the vehicle stops more than 2 hours) and
ø2 which records the fuel consumption since last reset (or self resets over 9999 hours).
Its not clear in the manual, but ø2 can be reset by holding down the OK button for a few seconds. This means you can use it to record the average over a tank of fuel, or reset it after you've run in the car to get a better idea of the long term economy average (I tend to reset it when I go on longer trips)

[Arctra]

I have an admittedly very heavy foot and at the time of this post am averaging 8.5L/100km's over 10,311km's of driving. God only know's how it'd be with the more powerful petrol... I know the theory goes that because it has more power I might actually be more efficient, but I am honest enough to say that if you give me more power I'll use it anyway, and so am unlikely to be any more efficient.

[coastie]

There are two average fuel meters -
ø1 which records the fuel consumption on that run ( reset if the vehicle stops more than 2 hours) and
ø2 which records the fuel consumption since last reset (or self resets over 9999 hours).

On both our VW it resets after 99 driving hours, would be great if you could get over a year of driving hours logged.