Today I refilled my fuel tank for the first time since initially filling the tank on the 3rd of January (I don't do a lot of miles). My calculated figure was 29.5 mpg which was a bit disappointing. My Jazz returned 55 mpg for the 62.5K I did with it. The only saving grace is that this figure was for the wettest and coldest months of the year. I got 275 miles out of the tankful and according to the MFD this was at an average speed of 14 mph. That is what driving in and around Edinburgh does. I would have been happier with the 32.6 mpg the optimistic MFD said I had managed.

I use BP Ultimate E5 97 RON. When you are filling up once every few months there is no point in skimping on fuel. The top up took 9.3 gallons. Lets see what the summer brings.

 

 

 

 

What the summer brings since around April is it is now Summer Formulation E10 & E5 until late October in Scotland and RoUK.

 

No point skimping, but daft overpaying. 

Might as well get Sainsbury's 97 ron (min) or Tesco Momentum 99 (99 ron min)

 

BP Ultimate 97 ron is nothing special. 

 

See the post yesterday by @Jim H& the video.

http://briskoda.net/forums/topic/501243-e10-petrol-ahhh

 

Edited 11 May, 20233 yr by toot

Its quite good economy for a tankfull used at an average speed of 14mph!

1 hour ago, toot said:

No point skimping, but daft overpaying. 

Might as well get Sainsbury's 97 ron (min) or Tesco Momentum 99 (99 ron min)

BP is the only one close to me and where I was going. For the others I would have to drive in towards the city or out to Bonnyrigg or Straiton.

30mpg does sound a little disappointing and as you've probably noticed I'm not particularly a fan of the VW 1.2 TSI engine (was never keen on the old VW 4-cylinders, sounded badger's-arse rough to me) or VW products and a VW (or Skoda) engine or car isn't a Honda engine or car - but - you're not doing a fair comparison.

 

At 275 miles per 4 months that'd be about 825 miles per year, so, 62.5k-miles would be nearly 76 years of Skoda current use. 😄  I'd not imagine your 62.5k-miles of Jazz use was at 14mph average and only over the cooler months.

 

IIRC your car Fabia had a "full" service history when you got it did you check the work had actually done and what that work actually involved. The Skoda Servicing & Maintenance sheet I have has 6-years/60k-miles(!) for engine air filter change, 4-years/40k-miles spark plugs (cambelt 5-years/50k-miles) and of course 1-year/10k-miles "Oil & Inspection Service" - it's all not a lot for the engine so if any was missed and then lots of intermittent very short journeys use it might not be optimal for mpg, Skoda 1.2 TSI or even Honda Jazz (probably to a lesser extent(?).

 

When I used Ultimate 97 (infrequently) it used to make the exhaust noisier on my car but that was before the introduction of E10 and with later use I didn't notice, perhaps the car and/or BP Ultimate had changed in the meantime.

 

Plus how big and heavy are your driving boots.  🙃

 

Be interesting to see how the next tankful goes and if everything is ticket-boo with your car's serving history and work done and how well your car is running.  I don't know how long my neighbour's car had been dragging its brakes but as it never really goes any where it'd be difficult to tell on the mpg (275m would be years of use now).

 

The engine is the 1.4 16V, not the 1.2. The car doesn't have a full service history. The oil, oil filter and spark plugs were changed before I got it (the oil was spotless when car was delivered). It went back for a replacement blower fan motor and while the garage had it they noticed a dragging rear brake so they stripped and fettled both rear drums. Regarding my right foot, it is very light. The Jazz did 62.5K on the same brake pads and they were not new when I got the car. The best tank of petrol on the Jazz was 70.9 mpg. I think the main problem is city or certainly urban driving.

Your journeys are much too short, the car isn't getting into closed loop running and you'll be getting a lot of yoghurt under the oil filler cap due to condensation buildup, you really need to get the engine hot but that means motorway miles. Stick with the super plus unleaded on that engine but give it a run out or it'll start to play up.

Edited 11 May, 20233 yr by sepulchrave

2 hours ago, Jocko said:

 they noticed a dragging rear brake so they stripped and fettled both rear drums. 

That won't help your mpg.

 

I had a 2001 Octavia 1.4 16v (same engine)  that usually averaged  low 40's mpg. Not as good as a tsi as it is direct injection compared to the less efficient port injection of the 1.4 16v.  With the same driving my 1.4tsi Superb averages late 40's mpg although if you take it steady on a motorway early 50's possible. 

 

Is the Jazz 55 mpg tank to tank measured? - my sister gets nowhere near that in hers although the fuel computer is rather optimistic. 

 

 

 

Edited 11 May, 20233 yr by bigjohn

11 hours ago, Jocko said:

The engine is the 1.4 16V, not the 1.2.

Sorry my mind must have been on another thread with 1.2 TSI or as often just dislodged.

 

12 hours ago, Jocko said:

The car doesn't have a full service history.

In that case, if it's yourself with the relative that's a mechanic did he go over it fully to check it, or I'd have thought I'd suggested once you were confident in the car to take it for a good blowout to check out the whole car's systems and components and loosen and blowout any built up muck, sometimes it takes more than one run if the runs are still not long or involved enough.  People who are used to higher mpg driving often don't drive the car far enough or "hard" enough on blowout runs and this doesn't mean driving stupidly or too fast just getting the right roads at the right time where the revs can be held higher, steering wheel, clutch, brakes and suspension get some exercise.

 

11 hours ago, Jocko said:

Regarding my right foot, it is very light. The Jazz did 62.5K on the same brake pads and they were not new when I got the car.

Good for not eating petrol on acceleration but possibly not so good for the brakes condition if the car is static standing exposed in the open the majority of its time, disc brakes being more exposed and car and brakes not getting any or much extended exercise.

 

11 hours ago, Jocko said:

I think the main problem is city or certainly urban driving.

Yes and I think we're been through the idea of some more extended and blowout runs before for the whole car as well as the engine.

 

Why did you get rid of the Jazz, and not buy another one to replace it?

 

10 hours ago, bigjohn said:

That won't help your mpg.

 

Is the Jazz 55 mpg tank to tank measured? - my sister gets nowhere near that in hers although the fuel computer is rather optimistic. 

 

 

 

The brakes were repaired before my first fill up and yesterday was my first refill allowing me to to calculate my mpg. I always calculate the mpg. Like yourself I use SpritMonitor.

The Jazz I had was the 1.2 DSi engine. Much more tractable than the V-TEC with bags of low down torque. It would run comfortably in 5th from 20 mph on a flat piece of road.

I know the car would benefit from a good "Italian tune up" but I am not in a position to just go for a drive. My fill up yesterday cost one third of a week's pension. I only use the car when necessary. If I wasn't disabled I wouldn't have it.

I have a couple of runs over to Fife at the end of the month so I will give it a good go then. Whenever I take a car out I like to do a couple of firm brake applications, early on, just to get the rust off the discs.

 

My Jazz succumbed to the rust bug and it was going to cost too much to repair to pass another MOT. The reason I didn't buy another Jazz was, as always, my car buying tends to be a distressed purchase and at the time I couldn't find a Jazz locally at a price I could afford. The dealer I got the Fabia from had one but it was outside my meagre budget.

3 hours ago, Jocko said:

The reason I didn't buy another Jazz was, as always, my car buying tends to be a distressed purchase and at the time I couldn't find a Jazz locally at a price I could afford. The dealer I got the Fabia from had one but it was outside my meagre budget.

Look at it this way as you didn't pay the higher initial cost for the Jazz you have more money to spread over time with the Fabia.

 

You can't really compare a 1.2DSi with a 1.4 petrol but given you'd try 20mph in 5th in the diesel I can't think you're taking too much advantage of the petrol engine and driving that much quicker without realising it but then hopefully you're not labouring the petrol engine too much either.

 

I can't think of any answers that would be of use or acceptable, or perhaps you wouldn't dislike, hopefully your runs to Fife might help a little if only for a while.

 

In the future many more diesels and petrol car owners will find perhaps similar issues to you but perhaps not to your extreme.

 

Yesterday day I drove my wife's Fabia and noticed it was doing infinity miles per gallon, fuel gauge needle was on 1/1 yet the car had done 65 miles since filling the tank, today the needle is two-clicks lower, it was great whilst it lasted. 😊

 

@jacko

 

EDIT.

Sorry i see, 9.3 gallons.   so your 29.5 mpg.     Seems pretty good if town driving, stop start and maybe not using stop / start.

?

Have you get Stop/start? 

 

Easy enough to get displayed good average figures on the screen that are not anything to do with the cars use.

If you start the car, reset the dash and drive no place it will eventually show 11 mpg, yet you drove no place, so not 11 mpg , 0 miles per gallon.

Edited 12 May, 20233 yr by toot

My car does not have Stop/Start I am pleased to say.

The WLTP Urban figure is only 33 mpg so considering the short runs in wet and cold conditions I suppose it is only to be expected. When Motor.EU tested it their estimated test consumption was 27 mpg!

@Jocko There was no WLTP Regime for Euro 5 cars like Mk2 Fabia from 2009-2014. you are a few years too early.

 

As for the old tests on a rolling road inside a building, that was NEDC and fiction as well. 

http://autocar.co.uk/car-news/features/autocar-guide-wltp-emissions-testing

 

1 hour ago, nta16 said:

You can't really compare a 1.2DSi with a 1.4 petrol but given you'd try 20mph in 5th in the diesel I can't think you're taking too much advantage of the petrol engine and driving that much quicker without realising it but then hopefully you're not labouring the petrol engine too much either.

 

1.2 DSi is Dual Spark Ignition (two spark plugs per cylinder with the spark timing adjusted by the ECU). It is a petrol engine, not a diesel. I have never ever owned a diesel car

Regarding engine oil. I always buy quality oil and change it at the engine manufacturers stated intervals or annually, whatever comes first. At my current mileage I will be changing my engine oil at around 1.000 miles!

1 minute ago, toot said:

@Jocko There was no WLTP Regime for Euro 5 cars like Mk2 Fabia from 2009-2014. you are a few years too early.

 

As for the old tests on a rolling road inside a building, that was NEDC and fiction as well. 

http://autocar.co.uk/car-news/features/autocar-guide-wltp-emissions-testing

 

I just took the figures from this article https://motoreu.com/skoda-fabia-1.4-16v-mpg-fuel-consumption-technical-specifications-172602

Mind you, it says it is Euro 4..........

Well that being the case we can take it all with a pinch of salt.  Like the ambient temperatures that cars were run at during the old or new tests;

Euro 4 will be right if it was to those emissions and then run out models as euro 5 came in, happened with others, Octavia Superbs etc. 

 

 

At least it does not need much oil for changes and no need for long life or anything costing much. 

Edited 12 May, 20233 yr by toot

From all the sites I have visited, my car is Euro 4 (first registered June 2009).

I'm a touch baffled about why mpg matters if you're only spending £10 or £15 a month on fuel? 

 

2 hours ago, Breezy_Pete said:

I'm a touch baffled about why mpg matters if you're only spending £10 or £15 a month on fuel? 

 

It doesn't, other than the fact that before moving here two years ago I was doing 16K a year and mpg was a game I played to see what I could do to get good numbers. I wasn't a Hypermiler as such (no switching the engine off to freewheel down hills or pumping my tyres up to 60 psi) but I liked to try and wring every last mile out of my petrol. As I said. Just a game.

11 hours ago, Jocko said:

 

The Jazz I had was the 1.2 DSi engine. Much more tractable than the V-TEC with bags of low down torque. It would run comfortably in 5th from 20 mph on a flat piece of road.

 

My sister's 2011 Jazz is the 1.4 , nice car but a bit of a high rev screamer at motorway speeds. Super reliable but you have to keep an eye on rust traps - especially rear wheel arches, the U shape fills up with mud and would eventually rust through if not attended to.

 

Your previous high mpg might be more to do with your previous high annual mileage.

 

I always liked the 1.416v in my Octavia but it sulked when it was eventually retired from my long commute to pottering. The oil breather then eventually clogged with oil mayonnaise because of  condensation / oil mixing. I learnt to clear the oil breather pipe bi-annually that passed through the air filter housing.

 

 

 

Edited 12 May, 20233 yr by bigjohn

19 hours ago, Jocko said:

1.2 DSi is Dual Spark Ignition (two spark plugs per cylinder

🤣 Thanks.  Yes Dual Spark ignition, that's far too easy and I was being lazy assuming D was for diesel, I wasn't sure if the Honda Jazz even came in a diesel and wouldn't have guessed they'd have a twin spark.  TBH I never really notice Jazz as, was it, 20 years back I thought it was large for a small car as I'm more used to the size of Civic from the the 1970s.

 

I'm all for timely fluidly changes using good quality items but there's more to an engine service than just an oil and filter change and and even a full engine service isn't a whole car service.

 

Some wouldn't bother doing anything to the car if they were doing your mileage.

 

16k-miles a year is a bit different from 275m in 4 months for mpg comparison, nothing wrong with saving petrol but the best way to do that is not to have a car.  Every little helps, as Tesco tells us, but it's all a bit ridiculous when all general modern cars are so big and heavy with over big wheels full of fancy extras that get only occasional use, five seats and only the driver in the car, all a bit robbing Peter to pay Paul.  I done decades of pleasure driving so there was little point me worrying too much about mpg but I can understand it for others.

 

As I put before it'd be interesting to see what the Fife journeys bring and the mpg over the next four months, good luck with it.

 

ETA: just noticed this 😄 

Edited 13 May, 20233 yr by nta16
ETA:

Today, I finally got my first decent run out in the car. 150 miles, mainly dual carriageways and easy country roads. It was also a cracker of a dry day. According to the the MFD readout, 54 mpg. I know these are always  optimistic but I am happy with the numbers I am seeing.

Edited 13 June, 20232 yr by Jocko

Some of the readouts seem optimistic but some have proved to be as near as damn it.

 

Of course you'll now have to amend your  😀