Good item Flowergirl!

Just done another 270 miles and averaged 51.7mpg using Morrisons fuel.

Maybe a highly tuned engine needs the fuel sold by shell but I can't see an economy car built in India and designed to use the fuel available there (may be perfect quality but maybe not) will need anything special, If I'm wrong I hope it is within the next 5 years.

1.2 Comfort.

300 miles done.

38 mpg.

City driving, air con on 50% of time.

Pug 106 XND was doing 50 (diesel, no air con).

Guess it'll improve a little...

Seven fill-ups and averaging a tad under 50 mpg with very mixed driving. I use air con about half the time as well. Still haven't done a decent run yet, though........

Only three fills so far - average around 44mpg, mixture of driving to work and back (8 miles each way), and a 200 mile round trip on the motorway. It's OK, but I'm hoping for better.

Now done 517 miles with two fill ups. Total of 47.78 litres which results in an average of 49.12 MPG or if you like 17.31 Km per litre.

I used to get the same with my old 1.2 Corsa trip. However expect the consumption to improve as car puts on more miles and I start to drive in my more normal style. Like to use the acceleration to much and have used it for more small journeys than I would normally.

I tend to use the bus in town (OAP free travel) so will only use the car for longer journeys and on the motor way.

Love the car and very pleased with the way it drives, in particular the power steering. A bit jittery on poor roads but then my old Corsa was as well.

More relevant to the US where they have lower octanes than us. As far as I know all petrol in the UK is 95 RON or above, all of which are fine. Chances are you won't do harm by putting 98 RON in but you probably also won't do much good. Engine knocking is best explained by someone else.. http://en.wikipedia.org/wiki/Engine_knocking

Basically think of it as "fuel igniting at the wrong moment" with resulting extra noise and harshness. It is why we had leaded petrol and ever since they removed the lead they've had to be careful in avoiding knocking. I would expect the i10 to have a knock sensor and be capable of adjusting fueling/ignition to avoid it, so I wouldn't worry too much. As a rule, do what the manufacturer suggests, higher octane fuel is more expensive and if they thought it was a good idea for the i10 engine don't you think they'd be recommending it so as to earn more money out of us?

Having passed the 4000km mark, I've been reviewing the fuel consumption of our 1.25 auto model. It is very disappointing.

Average for the last 1800kms is 36.7 mpg. Mostly out of town motorway running.
For the last 238km, which involved more town running, less than 30mpg.

The consumption is about 19% higher than our 5 seater 2L Turbo-charged Diesel C4 Picasso, under similar conditions.

Local running will always be penalised by the need to accelerate when joining our 100kph urban motorways but the same conditions applied to the Picasso and that had to kick almost twice the weight into the traffic stream!

The figures and the handbook indication are always based on ideal conditions but our experience is significantly worse. Can anyone suggest a reason for this? I appear to see a generous oil level on the aut-box dipstick, could this be important?

Did nearly 300 miles yesterday, mostly on motorways and dual carriageways with the speed between an indicated 70 and 80, and returned just over 54 mpg. Had air conditioning on for some of the time. Now approaching 2,000 miles so that will do me.....

Less than 30mpg? Are you sure? May need to get that checked if it is that low. Be careful with the auto, they are normally less efficient, avoid making it change down a gear (flooring it) too much. The i10s auto box isn't a very good setup on paper, 4 speed with almost 20% more fuel consumption than the manual and weaker performance figures. Be gentle with it. But equally don't let the engine labour if it's struggling triggering a kick down might be worthwhile.

Your Picasso is using a very different engine, diesels are more efficient in motorway environments anyway but they also offer numerous potential benefits on the fuel economy front, they tend to warm up to operating temperature quicker, the diesel itself contains more energy than petrol and the torque produced by turbo-diesels allows longer gearing and better in gear acceleration for things like slip roads joining motorways and overtaking. In terms of fuel economy and performance the driving style ideally suited to a turbo-diesel is really not suited to small naturally aspirated petrols like the kappa engined i10.

Just done 267 miles of mixed driving... incl. about 160 motorway miles at 65 MPH or thereabouts and I got 43.7 MPG - that's a Comfort 1.2, with 2 persons on board and no AirCon.

How do you work out how many miles you get ???

Filled up with 91 miles on the clock. Filled up again with 385 miles on the clock. Distance travelled 267,
Fuel to fill = 27.7 litres. 1Ltr = .22 Gallons. So I used 6.094 gallons for 267 miles = about 43.75 MPG. Hope my maths is correct !

Found this save you working it out.


MPG Calculator - from Miles and Litres

Here one more.


Miles per Gallon

This post has been edited by Graham7: Aug 2 2009, 01:20 PM

It's not an exact science, but I seem to be going the right way on MPG.

As you can see, formatting of this table on this post is a problem for me, so ... instead of spaces.

Columns E, F, G and I are calculcated as:

Column E =IF($D8>0,$D8-$D7,"")
F =IF($C8>0,$C7/($D8-$D7),"")
G =IF($D8>0,($D8-$D7)/$B8,"")
J =IF($D8>0,(($D8-$D7)/$B8)*4.564,"")



Hyundai Mileage Log.........................................Cost.........Miles..................
....Date.........Litres.......Cost....Speedo....Miles...Per Mile....Per Litre....Location....Per Gallon...Supplier
15/07/2009...20.65....£20.83...........32.....250......£0.08........9.2.......Garage A.......42.2.......Shell
22/07/2009...27.04....£27.01.........282.....253......£0.11........9.9.......Garage B.......45.3.......Esso
28/07/2009...25.50....£25.98.........535.....240......£0.11.......10.1......Garage C.......46.0.......BP
31/07/2009...23.83....£23.81.........775...........................................Gar
age D.....................Tesco

This post has been edited by Comfy: Aug 3 2009, 08:20 AM

Here's mine:



Date Litres Gallons Miles MPG % Difference
Start Stop
22 May 2009 24.21 5.33 29
26 May 2009 15.70 3.46 29 206 51.183
30 May 2009 20.55 4.53 206 430 49.487 -3.314
06 June 2009 13.45 2.96 430 577 49.619 0.267
20 June 2009 30.28 6.67 577 867 43.481 -12.371
01 July 2009 30.24 6.66 867 1,188 48.192 10.836
16 July 2009 29.31 6.46 1,188 1,510 49.876 3.494
24 July 2009 19.67 4.33 1,510 1,699 43.623 -12.538
25 July 2009 23.78 5.24 1,699 1,977 53.075 21.668

This post has been edited by goodoldboy: Aug 3 2009, 08:27 AM

My excel table:


Days Source £ cost(p) ltrs gal miles mpg
3 Dealer 20 100.0 20 4.40 142 32.3
10 Morrisons 20 101.8 19.64 4.32 165 38.2
7 Morrisons 20 99.5 20.1 4.42 167 37.8


Used to get 40-50 mpg in a peugeot 106 diesel (1.5 engine).

Be nice ifI can match that.

forgive to obvious statement, but don't the new engines need running in / loosening up before getting the best power / economy?

so what are the mpg from cars with a few thousand miles? and how gently did you run in the car. strictly follow the guidelines or gave the engine a **** good thrash?

Certainly seem to be the case for me and a 1.25 i10. At 2,500 miles I have just refilled at 51.5 mpg, when I first had the car I was getting around 44mpg. Even better is in those early days I was treating the engine with kid gloves and restricting the acceleration and top speed, now I am giving it some welly and still getting great mpg. This really is a great little car to drive, even at ermm 9*m*h the revs are below 4,000, so I am finding just as much fun and economical on the motorway, around town or on country roads, very pleased indeed.

mine will be clocking up about 700 miles a week, most of that town driving and generally gentle. so i'll have to do the varied revs / power between lessons.
on the first day i'm going for a good drive to bed in the brakes and tyres, on day 2 driving lessons start.
my panda @ 80k miles is averaging 47mpg. i'm hoping to average 52 mpg when the i10 is run in, as the stats for the i10 are 10% better than the panda for economy.