Gotta love Tdi economy

[transporterq]

Just completed the trip to Melbourne and back for the VW show, was a great show. Used just over half a tank of diesel there and about the same to get back. Did not record anything on the way over, but just filled up, taken 40 litres and covered 727.1 Km's, that’s around 5.5 L per 100 Km's, if my sums are correct. It has taken a few more days to gat back, but I will post that reason in the "103kW/125kw TDI PD Piezo Siemens injector failure thread" soon.

[kaanage]

Lost my nerve at 1201km today coming home from the Melbourne monthly cruise and poured in the 10 litre carry can of diesel I was carrying. Then filled up at a servo at 1277km with a total of 60.74 litres of fuel.

Based on the 4.76 / 100km average mileage (about 75% suburban, 25% cruising), the car had used 57.1 litres of fuel when I chickened out - pretty good for a car with a 45 litre fuel tank!!

[gldgti]

holy cow.... assuming you can squeeze about 48-49 L in there, your looking at 4l/100km... thats incredible for the real world.

Hang on now I'm really confused.... you put in 10l from your jerry can, and you put in 60.74 at the pump.....minus about 4l for your 77km.... so your fuel tank is holding 66 odd litres?

Somethings gone astray (perhaps in my head)

[ian]

I'm just happy that i can fill in Sydney and drive to Brisbane and still have enought fuel to drive around before i have to fill up .in my GT sports

---------- Post added at 08:03 PM ---------- Previous post was at 07:59 PM ----------

holy cow.... assuming you can squeeze about 48-49 L in there, your looking at 4l/100km... thats incredible for the real world.

Hang on now I'm really confused.... you put in 10l from your jerry can, and you put in 60.74 at the pump.....minus about 4l for your 77km.... so your fuel tank is holding 66 odd litres?

Somethings gone astray (perhaps in my head)

The tank holds 55 litres but you can squeze in a couple of extra litres/

[gldgti]

pretty good for a car with a 45 litre fuel tank!!

^^^this is whats confused me^^^

my octavia is supposed to be 55l but I can often put in 55-57l.... assuming theres some fuel left, it must hold a little more.

[kaanage]

Hang on now I'm really confused.... you put in 10l from your jerry can, and you put in 60.74 at the pump.....minus about 4l for your 77km.... so your fuel tank is holding 66 odd litres?

Somethings gone astray (perhaps in my head)

Sorry, the 60.74 litres includes the 10 that I added from the can at 1201km. At the servo when I was at 1277 km, I put in 50.74 litres.
From the average mileage (60.74 / 1277 * 100 = 4.76 l / 100km), I reckon that I had used 57.1 litres at the 1201 km point (60.74 / 1277 * 1201).

Still pretty happy with the mileage, given it's real world use - I do work it hard for economy so it's nice to see it work.

^^^this is whats confused me^^^

my octavia is supposed to be 55l but I can often put in 55-57l.... assuming theres some fuel left, it must hold a little more.

The Polo is supposed to hold 45 litres in the tank but if I vent it (you can do this in the MkIV Golf and 9N Polo while filling up) then you can put in about 10 extra litres. Obviously the Polo holds a bit more than 45 litres even when filled normally

[ohammond]

Hey all,

Picking up my Mk VI 103TDI DSG tomorrow hopefully - so it will be interesting to see how it compares to my Mk V 103TDI 6sp Manual - especially given that the VI has the sports pack fitted.

Having rattled off 380K+ in less than 6 years in the MkV i've had the chance to see a lot of 1000km+ tanks (adjusted for GPS) with a best run of 6 consecutive tanks with the last one being 1112km. Regularly saw it into the low 4's/high 3' per 100km over 100+km distances (Coffs to Newcastle @4.0 at the bowser)- with a best of display value 2.6L/100 from Moss Vale to the start of the F3.

[gldgti]

wow, those are great numbers.

almost makes me consider trying to sell my octy 1.9 to get a 2.0l..... nah.

[jazd]

All I can say is that you must drive extremely slow...

[jamie88]

My lowest was 3.9. Newcastle to Sydney. With mum in the car lol

[ohammond]

You don't have to drive slow to get good economy - Lake Macquarie to Wahroonga returns 4.5-4.7L/100km and averaging 100-105.
That 2.6 figure was averaging 100 and was done seeing how low i could get it - that said its quite easy to get into the 4's and high 3's on the open road sitting on 100kph just by driving smooth and pre-emptively.

[gt_pumbz]

I average 5.3 to 6/L country/freeway about 70% of the time.
I juss got my gt sport recently so im still enjoying it have to drive at least 22km to catch up with friends.
But for some reason i can squeeze 365k from full to 3/4 then the fuel gauge goes on a binge session...
But still happy with the economy for now


---
I am here: http://maps.google.com/maps?ll=-37.492986,145.070386

[sparkie]

Way back in 2008, I started this thread about Tdi economy, and I've been keeping a tab on things ever since. Today I finished the best run I ever did, 1070 kms in one tank, and I still had not run out, although it was getting hard to start for some reason. My journeys are all on the Sunny Coast Hinterland so a fair few hills and not many long highway runs, and after the first few days I wasn't even trying to get an economy run; so air con was used and little coasting to junctions, etc. I filled the tank to the brim again and put in 42.1 litres into a 40 litre tank, that makes 25.41 kms to a litre or less than 4 litres to 100kms! This is a 1996 Tdi with 240,000 kms on the clock!!! Modern diesels are only now getting that kind of economy, with all the bells and whistles they have in terms of fancy electronics (although I must admit my engine has an electronic EMS. Gotta Love Tdi Economy

[kaanage]

Modern diesels are only now getting that kind of economy, with all the bells and whistles they have in terms of fancy electronics

Also add in all the çrap that modern cars have to lug around for safety, emissions, comfort... There is a study that points out cars in general haven't improved in average economy over the last 30 years (I guess the big '70s V8/inline 6 family cars get balanced out by the SUVs)

[Gigitt]

You have been robbed!!!

Mk3 have 55lt fuel tanks. with 7lt being reserve.