Official Fuel Economy Thread (formerly Highway economy).

[jimbomort]

My consumption is about as bad as you are going to get in a Tiguan, considering I drive it as hard as is legally possible..... all the time. Average since taking delivery is 12.3l/100km (MFD) Thought it would be good to get the opposite extreme out there .....

thanks Sharkie, based on Clips comments that looks to be about the opposite end. Think I got only 10.5 once, and that was when I first took the APR staged 1 Tig and sole purpose of that trip being go hard. Other than that I was around 8-9 in Sydney driving recently, even with putting the boot in a bit, noting there wasn't a lot of traffic and I was driving reasonably economically when I wasn't putting the boot in.

Be interested to here what other Tig owners are getting in city driving?????
Since most of this economy thread to date has been on hwy economy.

[Dilusi]

thanks Sharkie, based on Clips comments that looks to be about the opposite end. Think I got only 10.5 once, and that was when I first took the APR staged 1 Tig and sole purpose of that trip being go hard. Other than that I was around 8-9 in Sydney driving recently, even with putting the boot in a bit, noting there wasn't a lot of traffic and I was driving reasonably economically when I wasn't putting the boot in.

Be interested to here what other Tig owners are getting in city driving?????
Since most of this economy thread to date has been on hwy economy.

My averages would be similar to Sharkie's. As I mentioned in earlier post, most of my driving is inner city (within 5kms of the CBD, lots of lights and stop start, and waiting multiple light changes before crossing). 147TSI Auto, always running AC and driven vigorously within the speed limits. In this type of running I have been averaging in the 15s, most other suburban I get in the 11s and once I hit the the highway, average around 8s. Love driving it!

[Arctra]

Here are some TDI figures for you (stick TDI Auto) where I use aircon about 40% of the time:

City driving (fairly hilly drive to work and reasonable traffic. I am not shy about drag racing away from the traffic lights):

• Best figures - 8.75 l/100km
• Worst figures - 10.24 l/100km

Open road driving:

• Best figures - 6.68 l/100km
• Worst figures - 9.58 l/100km

In the 18500km odd I've done in the Tig so far, I'm averaging 8.48 l/100km overall.

All of those figures are calculated based on quantity measured at the pump divided by odometer reading since last refill. I have not done a proper comparison of the actual compared with what the MFD says, but my gut feel is that the MFD is a little optimistic in it's readings.

[Ricardo]

Thats interesting. Does anyone know how accurate the MFD is?

So far I am averaging 6.7 l/100kms since new and I have done 1500km. There is only one set of lights in town so there is not much stop starting and as I have been running the engine in I have been accelerating gently.

[DieselTig]

I am currently filling a log book for business use on the 103Tdi and I have to say after 6 fills with some open road driving the average is 9.5l/100km. better than my xtrail ~13-15 average.
I have to admit I am not gentle with it, I like the torque and the the little turbo starts winding and cant help pushing the throttle. The best I had on a tank was 8 and most of it was open road. See how we go!

[jimbomort]

Thats interesting. Does anyone know how accurate the MFD is?

see post 57 in this thread, but in short, I have found the MFD in our Tig (125 TSI with the APR stage 1 upgrade) about 0.2-0.3 under actual, so close, but a little optimistic. This based on fuel actually refilled over 3 tanks and 2200 klms, compared with the long term MFD fig reset at the start of the 3 tanks. Not sure if the diesel MFD's or those in unmodified TSI's are any different, though I suspect not greatly.

[147Tig]

Must have program for these who record and keep eye on car’s fuel economy and other car expenses. It’s free and it is good, it could also be used as the logbook.You can also use it for more than one car.

Car Organizer Software from LiquiMoly Oil Company

http://www.liqui-moly.de/liquimoly/w...organizer.html
Program is over 20Mb file and it is slow download too.
Make sure you download English version. After you install it, use currency converter in it first and set it up to work in AUD.

wow, that's handy. Thanks

[smipx013]

Hi,

I have a 2.0 TDi Auto

Here in the UK I do a round 30 mile trip to the office every day and on average i get between 36Mpg (UK) this equates to about 7.85l/100Km (mixed driving in traffic up to 80mph with a 3 mile secion of the motorway at 50mph and a bit of stop/start at either end. The best I ever got was 42Mpg (6.9l/100km) (this is when I drive at a fixed 50-55mph all the way and either stroke the accelerator or put crusie control on -the latter definately improves things).

On a longer drive on the motorway I can cruise at a constant 90mph for 50 miles on cruise control and only get 31mpg (9.11l/100km)!!!!! In my old petrol 2.6 v6 merc it was the other way around. When I crusied in this I got 31mpg all the way but in stop/start traffic and short runs I only got 22mpg.

The consumption is better in slow and stop start traffic than it is at 90mph when the consumption really suffers at anyting above 70mph).

Paul

[jimbomort]

Hi,

I have a 2.0 TDi Auto.......The consumption is better in slow and stop start traffic than it is at 90mph when the consumption really suffers at anyting above 70mph). Paul

it is true for almost all cars that at speeds well in excess of 60mph, fuel consumption can increase quite substantially, wind resistance plays a big part and penalises less slippery vehicles such as small 4wds more so than others.

The difference in fuel consumption b/w 90 and 110klm hr alone can easily be 20%, though the most efficient cruise speed for different cars does vary a fair bit.

I'd sugegst the releative diff b/w your old merc and the tig on hwy versus stop start, doesn't suggest any issues with high speed driving in the Tig. Your quoted consumption at 90mph is quite reasonable.

[DBBL]

Hi guys,

I've had my Tig now for a couple of months now and cannot tell you how much I love it. It's exceeded expectations and both my partner and I love driving it.

There's only one MAJOR problem. Fuel consumption.

Admittedly we've come from a very fuel efficient Mini Cooper but I'm getting between 375km to 420km per tank and each tank is costing me between $80 to $95 dollars (depending on when I fill it up and that's for 98 octane).

Before we looked at the Tig, we were interested in an XC60 but quickly crossed that off our list once we saw the fuel consumption (16.something for highways and about 13l/100km combined).

We were then sold on an Audi Q5 and placed an order for a 3.0D which as a combined fuel consumption around the 6's l/100km.

THEN... we discovered the Tig and although the wait was almost as long as the Q5 we just loved the quality and bang for buck. I didn't look at the fuel consumption on the 147TSI (my fault) before we purchased it. I made a number of assumptions which turned out to be wrong. I've now discovered that the 147TSI has a city consumption of 13.7l/100km!!!!!!! and a combined of 10.1.

I know I've brought this up before in this forum and people told me to give it a while average out, but we're now seriously considering selling the Tig for an X1. Plain and simple, we don't want to and we both really like the Tig better but the X1 has a combined fuel consumption of between 5.3 and 6.8 l/100km and is also pretty good value for money (not as good). I know they'll be a change over figure but when you consider the cost of petrol and the fact that we'd be saving almost half in fuel costs, it certainly makes out a convincing case.

So... my question is whether there anything we can do to improve fuel consumption? I mean, am I missing something or is the fuel consumption on the 147 a bit ridiculous when compared with the competition? Can anyone point anything else out that I'm missing?

Thanks all.