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

[mfl]

Wow seriously.
Don't know how all of use are getting so much out of full tank.
Something must be really wrong with my car.
I've got a 6 speed manual mk6 gti.
Just ticked 3000ks.
Always fill up with 98 bp ultimate.
Never seem to get over 400ks out of full tank.
Mfd is always reading 12-14L/100km.
Im always doing short trips.
City driving.
Always keep revs low.
Now and then I let it breathe a bit.
Use 6th gear more as I hear some Guys say that may improve fuel economy but nothing is working.
Have it booked it at vw this Friday.
Need to get this checked up.
Sick of filling up twice a week.
Any ideas anyone?
Should I be changing fuel?
What fuel are most of use finding you get more kms out of.

My GTI now has almost 20,000kms and driven in similar conditions get around 420 - 440km per tank. The fuel economy has improved slightly as the car has covered more kilometres and country driving sees the consumption drop to around 7.0 l/100kn. The inner city driving starts off at about 18.0l/100km and ends at about 11.0l/100km by the time I am home.

I use 98oct BP and rarely use 6th gear and might occasionally use 5th gear above 60km/h. I don't short shift or drive it for economy.

The GTI give around 10-15% better economy than I used to get from my 2.5l Liberty in the same driving conditions, with about twice the performance.

[Converted]

So your saying the 95Ron is better for our car?
Feels better?[/QUOTE]

Sorry I wasn't clear, in conclusion...
The 95 is definately more economical/fuel efficient and feels more 'solid' between the two.
The 98 has more ummmphhh to it at startup, pick-up and when revving.
So for daily driving, I've opted to stick with 95. On occasions when I feel like some spirited driving, I put some 98 in.

Ahhh Corey_R actually understood me.

[Corey_R]

Sounds to me like he is saying 98 is better, but 95 has given more fuel economy.
Do a search on the forum and you'll find lots of 95 vs 98 information.

[rageR]

Between the two, the 98 makes the engine more responsive and parts running inside it 'feels' lighter, whereas the 95 makes the engine feel more solid like heavier/more mass.
Not sure if I'm making sense here in layman's terms.

So your saying the 95Ron is better for our car?
Feels better?

[Converted]

Just ticked 3000ks.
Never seem to get over 400ks out of full tank.
City driving.
Always keep revs low.
Now and then I let it breathe a bit.

I'm with you here but with DSG, city driving most of the time, between 400-450kms per tank on premium unleaded (95).
Once, I managed 550-600kms driving long distance (freeway).
I used to think 98 octane is more efficient (cost wise) but on both my previous Integra Type-R and this GTI, this doesn't seem to be the case. I personally feel that the 98 burns a lot easier thus quicker (no surprises there actually) than the 95. And I know the 98 is meant to be cleaner so better for your engine. Between the two, the 98 makes the engine more responsive and parts running inside it 'feels' lighter, whereas the 95 makes the engine feel more solid like heavier/more mass.
Not sure if I'm making sense here in layman's terms.

[Transporter]

I got a new record out of the MFD on the weekend, 4.8L/100km.

Sorry mate, that doesn't count!

[hooba]

Wow seriously.
Don't know how all of use are getting so much out of full tank.
Something must be really wrong with my car.
I've got a 6 speed manual mk6 gti.
Just ticked 3000ks.
Always fill up with 98 bp ultimate.
Never seem to get over 400ks out of full tank.
Mfd is always reading 12-14L/100km.
Im always doing short trips.
City driving.
Always keep revs low.
Now and then I let it breathe a bit.
Use 6th gear more as I hear some Guys say that may improve fuel economy but nothing is working.
Have it booked it at vw this Friday.
Need to get this checked up.
Sick of filling up twice a week.
Any ideas anyone?
Should I be changing fuel?
What fuel are most of use finding you get more kms out of.

The majority of my trips are less than 5 minutes, heavy traffic, inner city work and I get similar consumption to you. I've found that the economy drops quite a lot on longer runs, and come the conclusion that it runs very rich when cold in order to quickly get things up to operating temp as none of my previous cars have had such big difference between short / long trips.

That said, I'm still blown away at how efficient this engine is once warmed up.

[Corey_R]

Im always doing short trips.
City driving.

Answered your own questions right there

[rageR]

Wow seriously.
Don't know how all of use are getting so much out of full tank.
Something must be really wrong with my car.
I've got a 6 speed manual mk6 gti.
Just ticked 3000ks.
Always fill up with 98 bp ultimate.
Never seem to get over 400ks out of full tank.
Mfd is always reading 12-14L/100km.
Im always doing short trips.
City driving.
Always keep revs low.
Now and then I let it breathe a bit.
Use 6th gear more as I hear some Guys say that may improve fuel economy but nothing is working.
Have it booked it at vw this Friday.
Need to get this checked up.
Sick of filling up twice a week.
Any ideas anyone?
Should I be changing fuel?
What fuel are most of use finding you get more kms out of.

[hooba]

I got a new record out of the MFD on the weekend, 4.8L/100km.

[Transporter]

Once I hit 0 km and the bottom of the gauge is it pretty much game over or is there a 20km or so idiots margin???

Not planing on a regular thing but its nice to know exactly what you can do if you get caught out in the country.

Most likely it's not going to be the same amount that will be remaining in your tank at every time when the needle hits "0" and you could be stranded without the fuel.

I always fill up when I have a 1/4 of the tank remaining and I monitor the km's I do before the needle hits 1/2 and 1/4 and it is always within 50-70km

[MSR]

How low can you go before it starts to splutter???

I always like to know just what I can get away with if I really have to so ran the first tank out of the GTI till the trip meter was saying 5 km to go and got nearly 52 litres in till the first cut off on fast fill. Managed to get 54 in it on half flow without overflowing it. Yes I know I'm not supposed to go past the fast fill cut off.

Would I be correct in assuming when VW says its a 55 litre tank I can actually use 55 litres? The STi claimed 60 litres but by 54 you were walking.

Once I hit 0 km and the bottom of the gauge is it pretty much game over or is there a 20km or so idiots margin???

Not planing on a regular thing but its nice to know exactly what you can do if you get caught out in the country.

[prise]

This probably sounds stupid but I get the best economy if the ambient temp is around 22-28 degrees. I have no idea why.

I have a theory that there is an optimum temperature for fuel economy which changes depending on the speed.

- If the temperature is high then the air-con will start to hurt the fuel consumption.
- If the temperature is low then the car takes longer to warm up, colder bearings, tyres, etc give more rolling resistance and the denser air creates more aerodynamic drag.

So the optimum temperature will depend on your trip length and the type of driving.

[MurphyTheElf]

After almost 15,000kms (will be booking my service tomorrow), my long-term average is 8.3l/100kms. I do mainly short trips, but with quite a bit of freeway driving as well. Around town I have a fairly heavy foot, but I don't exactly test the ESP at every green light. I primarily use manual-mode, down-shifting when slowing and up-shifting well past where the DSG would in standard auto mode.

A couple of long rural trips have been thrown in for good measure, usually averaging around 6.5 - 7.0 over the course of a 700km round trip. I still get that economy despite the fact that I overtake fairly often, and when I do, it's foot to the floor to reduce the time I'm on the wrong side of the road.

[hooba]

In my GTI the best I've seen on the MFD is 5.8L/100km (!), and tonight I did around 65kms of mainly freeway driving and got 6.7L/100km despite not driving for economy.