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

[alphabeatsco]

yeah i think im getting around 500-600km too.
but i heard somewhere in this forum, someone got like 700-850km every tank!????
is that just the TSI!?

[Christopher]

800km ballpark sounds like a 118tsi. Any tsi guys able to confirm?
700km is doable in a GTI - probably more on the upper extreme though and involves a even split between freeway & city (if not more freeway than city).

[STV4SYT]

I do 400km a week onthe freeway to and from work and a few shoirt trips to the shops etc around home. most i got out of a tank of 98 was 520 and best i got from 95 was just short of 600.

Im not dring it har everywhere and the freeway bursts are generally with the cruise set on an indicated 111km/h which equates to around 104/105 actual

That is over the past 6000km and i have yet to see the magic 700 number so many talk about.

Maybe i just enjoy the car too much getting to and from the freeway

[alphabeatsco]

do u get more fuel when u accelerate hard or drive like a grandma...i got a feeling i need to push it harder.
im changing at 2.5rpm.
the car seems so slow

[cameronp]

I do 400km a week onthe freeway to and from work and a few shoirt trips to the shops etc around home. most i got out of a tank of 98 was 520 and best i got from 95 was just short of 600.

Im not dring it har everywhere and the freeway bursts are generally with the cruise set on an indicated 111km/h which equates to around 104/105 actual

That is over the past 6000km and i have yet to see the magic 700 number so many talk about.

Maybe i just enjoy the car too much getting to and from the freeway

Cruise at a lower speed and you'll use a lot less fuel. On my TSI (which according to VW's figures is 10-20% more fuel-efficient that a GTI), I get not much more than 6L/100km cruising with 80-90km/h on the speedo on suburban highways around Perth. That would give 800-900km per tank. But hardly any of my driving is at that speed. On mildly hilly country roads with 110km/h speed limits, cruising with 118 on the speedo (112 actual speed), I was seeing more like 7.8L/100km, which would give you 600-700km per tank. These numbers are from the trip computer, which is pretty much spot on with what I get from calculating odometer distance and litres filled at the servo.

With any turbo-petrol car, fuel consumption will vary massively with the weight of your right foot and the traffic conditions. If you're the kind of person who buys a GTI rather than a Prius, you're probably not the kind of person who gets the best possible fuel consumption in any car

In my experience, the ADR "extra-urban" cycle is completely irrelevant to any real-world driving situation, while the "urban" figures are about what you'd expect from driving like a grandpa in moderate traffic.

[Corey_R]

do u get more fuel when u accelerate hard or drive like a grandma...i got a feeling i need to push it harder.
im changing at 2.5rpm.
the car seems so slow

I think that there is a balance to be had. If you accelerate too slowly then you're accelerating for a long period of time before you get to the 'speed limit' and start coasting. Coasting in the DSG and in a manual uses NO FUEL at all (as long as the revs are high enough). Conversely, put your foot flat to the floor and you'll use an excessive amount of fuel, but only for a short period of time. It's very hard to tell which one is better in a scientific manner when our "test environment" is driving 500km+ and refilling the tank - but I'm sure that there is a balance somewhere in the middle between slow and flat out, since the real trick is the coasting

[STV4SYT]

Cruise at a lower speed and you'll use a lot less fuel.

Really?

why would i want to cruise in rush hour traffic at under the speed limit by 20km/h or more?

Thats just dangerous in melbourne

[elisiX]

450 first
500 second

mix of bumper to bumper, highway and giving it stick.

[mfl]

In the mainly heavy peak hour CBD traffic I get stuck in, the computer usually shows in the low 10l/100km and with lighter traffic drops to about 9.6l/100. The Subaru Liberty I previously owned used about 12.8 - 13.5l/100km in the same conditions (and went a lot slower), Compared to the 18-20l/100km of my old Commodore V8s

I recent trip to Nowra fuel consumption got down to around 6.5l/100km, the Subaru (2.5 heritage) would get about 8.8l/100kmon the same trip. I certainly don't drive for economy, so I am impressed with the consumption.

[cameronp]

I think that there is a balance to be had. If you accelerate too slowly then you're accelerating for a long period of time before you get to the 'speed limit' and start coasting. Coasting in the DSG and in a manual uses NO FUEL at all (as long as the revs are high enough). Conversely, put your foot flat to the floor and you'll use an excessive amount of fuel, but only for a short period of time. It's very hard to tell which one is better in a scientific manner when our "test environment" is driving 500km+ and refilling the tank - but I'm sure that there is a balance somewhere in the middle between slow and flat out, since the real trick is the coasting

Unless you're going down a steep hill (or in physics experiment land where everything is frictionless and drag-less), you'll still need to have your foot on the accelerator slightly to maintain your "at the speed limit" speed (until you approach the next red light and have to slow down again) - so you'll still be using a little bit of fuel. You'll also be cruising at that maximum speed for a greater distance, resulting in more total air resistance and rolling resistance. But I think you're basically right, accelerating too slowly will be bad for economy just like accelerating too quickly will be. Actually calculating or measuring this gets pretty tricky fast, though it might be possible to get some idea using the telemetry you can get from VAG-COM.

I just had a quick look on the internet and found an article on wikipedia claiming that naturally aspirated engines are at their most efficient near their peak torque. This sounds counterintuitive to me, because it would mean that you're actually better off accelerating much faster than just about anyone does when driving normally. Perhaps I'm missing something obvious.

Really?

why would i want to cruise in rush hour traffic at under the speed limit by 20km/h or more?

Thats just dangerous in melbourne

Oh, I worded that badly. I wasn't actually suggesting that you travel slower, just pointing out that you use a lot more fuel when travelling at higher speeds, so long stints on the freeway won't necessarily result in amazing mileage.