69mpg from 1.6tdi surely not !!

[adamb87]

So I do the same drive every day and this morning I was being super careful and managed 69 mpg by the time I parked up at work. This was a steady 60 on the motorway. Roughly about a 25 mile journey being about 80 per cent motorway. This was on the no 1 screen. No 2 screen showing about 57 ish. So it is possible to get the mpg if trying stupidly hard lol also running a tank of vpower diesel this week so I dunno if this has had an impact on it ?

 

[grant 123]

i have found the onboard MPG is usually 5-10% out in some cases but either way that is mighty impressive... would still be 60+mpg

 

[markmeus]

Highest I've seen is 65mpg a couple of weeks ago.

 

[adamb87]

i have found the onboard MPG is usually 5-10% out in some cases but either way that is mighty impressive... would still be 60+mpg

I have worked the mpg out before and it is actually pretty acurate to my calculations so happy days

 

[craig247]

yeah i run vpower diesel and i manage 60+ mpg on a 28 mile run to work

 

[Beenz]

A trip to the midlands and back earlier this week I got 64mpg average on the way there and 62mpg average on the way home at night. Driving it pretty easily mostly with the odd overtake which would have knocked it down a tad. A cracking little car, great balance between economy and still having real world every day performance.

 

[farrar]

. A cracking little car, great balance between economy and still having real world every day performance.

One thing I've noticed is that the Seat specs say the top speed of the 1.6 CR TDI is 111 MPH. Mine was still pulling at 120MPH (GPS), must be a mistake on the website surely

 

[adamb87]

One thing I've noticed is that the Seat specs say the top speed of the 1.6 CR TDI is 111 MPH. Mine was still pulling at 120MPH (GPS), must be a mistake on the website surely

On a private road I take it ??

 

[rji]

Impressive adamb87. But compare that to 66 mpg in a Volvo S40 at around 50 mph and the S40 has an Extra Urban Cycle of only 58.9 mpg. On a continuous run you should be comparing your mpg to the Extra Urban Cycle figure and that's 78.5 mpg for the 1.6 TDi. You're about 10 mpg short of this figure and 16 mpg short if your trip computer is reading 10% high. I calculate my mpg from brim to brim and trip number 2 is only reset at fill ups and it reads 10% high.

Of course 60 mph is not the most economical speed. Try a run at a steady 50 mph. If the official figures are representative you should get close to or exceed the Extra Urban Cycle of 78.5 mpg. The S40 could exceed its Extra Urban Figure by 7 mpg on a run at 50 mph. This also applies to other diesels we have owned. Our average per tank for normal mixed use was always around the Combined Cycle figure for the car. The S40 Combined Cycle figure was 48.7 mpg and the last 10,000 miles it gave us an average of 47 mpg.

People don't want to travel at 50 mph they want travel at 70 mph on a continuous journey so they don't expect to get 78.5 mpg.

But one thing is for sure, yours is doing a lot better than mine. I can't manage 60 mpg at any speed. Rolling around town at a steady 30 mph in 4th appears to be reasonably economical but gear changes and acceleration knocks it flat. The small amount of extra power required to maintain a steady speed in 5th gear just seems to hit the consumption far too hard.

Overall my 1.6 TDi fuel consumption is total pants. I would like to be able to test a similar car that is getting good consumption for comparison but dealers don't seem to have any 1.6 TDi demonstrators available. So far mine is barely any better than other diesels we have owned and one of those was a 7 seater MPV. According to the official figures the Ibiza should be almost 20 mpg better than any of those.

If I drove like a loon and used the revs and the turbo and the 105 horses it would feel really sporty and I couldn't complain but we bought this VW diesel for its economy...

 

[adamb87]

What sort of mileage has your car done ? I was very dissapointed with mine but at around 14000 it has started to improve. It does still have bad weeks though when I am not being careful it takes a dive. It is hard work to get anything decent out of them. It really should be looked into at how they achieve the mpg figures in the tests. It simply shouldnt be allowed. They should take the car out on the roads and drive them in the real world.

 

[rji]

adamb87, Seat testing their mpg in the real world wouldn't do us any good because:
1. Regulations prevent them from quoting anything other than the official figures. Even if they could easily achieve 100mpg in the real world they would not be allowed to tell you.
2. The same regulations prevent them from telling you how BAD they really are. Which would be bad for business just like telling people about the DPF's would be bad for business.

It's beyond a joke when your dealer will be fined £3,000 for not displaying the economy/emissions figures next to each and every new car. But nothing can be done about the fact that those figures are virtually impossible to achieve.

If the official figures are impossible to achieve then they are getting the cars into the wrong taxation class. Isn't that defrauding the government of tax revenue? Of course the government won't care because they will get the fuel duty on all the extra diesel they use. But it's not doing much to save to save the planet and its resources.

Ours has about 4,500 miles. We haven't seen any additional improvement over the last 2,000 miles or so. Two previous new cars (both common rail) were already getting good economy by this mileage and a third car (not common rail) was bought with 6,000 miles and was excellent.

 

[Biker]

If the official figures are impossible to achieve

I think the official figures are achievable! Last weekend I achieved 73.4mpg on an urban drive that involved lots of road junctions and traffic, so lots of stop start driving. Had this drive been simply cruising on a motorway, I think 78mpg would have been within reach.

 

[adamb87]

I think the official figures are achievable! Last weekend I achieved 73.4mpg on an urban drive that involved lots of road junctions and traffic, so lots of stop start driving. Had this drive been simply cruising on a motorway, I think 78mpg would have been within reach.

What is the mileage on yours and what fuel do you run it on ??

 

[chris285]

they are possible however i am dubious about the newer diesel engines in terms of their returns on the bigger cars

pre remap on my leon i could hit the average 54mpg combined which are the book figures and on longer journeys get a bit more, following my remap i have seen nearly 63mpg at times which is granted driving like your nan impressive for something which has 190bhp

 

[Biker]

What is the mileage on yours and what fuel do you run it on ??

Mine has done 11600 miles and I normally buy my fuel from our local garage, which is a Jet retailer and it is just the standard diesel.

 

[rji]

Biker, I assume you are quoting for an Ibiza 1.6 TDi (your profile says you drive a Leon Cupra R). If I was getting 73.4 mpg, even allowing for the overly optimistic trip computer, I would not be complaining.

Getting somewhere in the region of the combined cycle figure (65.7 mpg) on

an urban drive that involved lots of road junctions and traffic, so lots of stop start driving

is all I ask.

It makes me think mine has a problem. There's that noise the engine makes when under load (even a very light load) that I still think is a fault. I think I'll make them look at it again.

 

[adamb87]

Biker, I assume you are quoting for an Ibiza 1.6 TDi (your profile says you drive a Leon Cupra R). If I was getting 73.4 mpg, even allowing for the overly optimistic trip computer, I would not be complaining.

Getting somewhere in the region of the combined cycle figure (65.7 mpg) on
is all I ask.

It makes me think mine has a problem. There's that noise the engine makes when under load (even a very light load) that I still think is a fault. I think I'll make them look at it again.

What figures are you actually getting and what type of driving do you do?

 

[Biker]

Definitely is the Ibiza 1.6TDI, the Leon was my last car and that struggled to get 20mpg never mind 70mpg.

I think the 73.4mpg was helped by the mild weather we had last weekend, the temperature is down to about 2 degrees again now and the consumption has dropped off a little. That said the 6.5 mile journey to work this morning still returned an indicated 65mpg.

I am very happy with the consumption of my car, when I bought it I thought if I could get an average of 50mpg I would be pleased. In reality from day one it has returned 60ish and does appear to be getting better.

I do sympathise with you rji, your car does appear to be under performing. Let’s hope you can get something done with it.

 

[rji]

adamb87,
Average over a tank is about 47mpg (41 mpg when new) on our usual mix of town and continuous driving that on previous cars returned around the combined cycle figure. And I'm trying harder in the Ibiza than I did in the others.

The trip computer shows a reasonable figure for town driving if I'm really careful and I don't do too many stops and starts and don't get held up by traffic. It's not the official urban cycle mpg but I don't really expect get that. At a steady 30mph in 4th the mpg is reasonable because the car is rolling along with the engine hardly doing any work.

The real problem seems to be getting any good economy on a continuous steady run. At a constant speed in 5th where you would expect the car to return its best mpg it just can't deliver. The most economical I have managed is around 65mpg on the trip computer (less than 60mpg actual) and that's measuring only the 5th gear steady run part of the journey without the acceleration required to get it there. Doing this I would expect to get at least the extra urban figure of 78.5mpg. I've tried various speeds in 5th, the best seems to be around 45 to 50, any higher and the mpg falls off, as I would expect.

It would be nice to think that it will just get better all on its own but unfortunately I have lost faith in that happening, especially when there seems to be so many others, even some ecomotives, in the same position.

 

[adamb87]

When we got ours at 5k that is all I could pretty much manage. Then I got to roughly 10k and it did show an imorovement. It is only recently I have started getting these figures out of it. So maybe just be a bit more patient with it and see what you can get. I rang seat about my consumption and all I got told was wait until my second service and see what the crack is then. All SEAT will say is wait until your engine is run in if you ring them about yours.