From reading postings on this subject there seems to be a wide variation in fuel consumption.

Can you post your best and worst over the next few weeks and against each the type of driving i.e. town, motorway leisure, mixed etc

If enough enter details I'll collate and do a summary posting at the end of May.

This way we'll see if figures given by Hyundai are achieveable.
:auto:
:o_75:

Good Idea... but mine will be a little boring...

Usually 5.4 when use air around town...and

5.1 or 5.2 with no air on the highway...

Yeah I know seems a bit weird to me too

but happy enough overall.

Rgds,

Dazz

Best so far has been 4.6l/100k over a long distance.

This has been at moderate road speeds on gently undulating roads with some town driving. Have occassionally got better than this but not over long distances (most of a tank).

Worst has been 5.3l/100k

This has involved some city driving and hilly country driving. As I live in the country, this type of driving is not common.

Having a trip computer has brought about smooth driving habits for me. Even my wife, who has been more likely in the past to feather the accelerator quite a lot is now more inclined to drive conservatively.

Bob

The best so far 4.8 on a 42 degree day with the aircon on all the way and a few blasts way over the speed limit.The worst 6.6 when the car was only a few days old.It seems to have averaged out to about 5.7,but I like to drive it and let the turbo work a bit.(im 49 years young and enjoy driving :) )
cheers Ian

800km in stop start city cycle, open road 1,000km and more would be easy.

My diesel i30 initially displayed 5.8L/100km when first picked up from the dealership on April 10. I decided at that time to not reset it for as long as possible and see how the fuel consumption progressed over the full range of driving conditions that I encounter. I found it dropped fairly quickly to around 5.5 L/100km after driving about 1000km in the first week, mainly on highways. Then it progressively dropped over the next 3 weeks to 5.4, 5.3 and to the current display of 5.2. The type of driving was again mainly highways with some hills and city driving included. The time between drops seemed to get longer, that is to say, the change from 5.5 to 5.4 occured in a shorter time than the drop from 5.4 to 5.3 and the drop from 5.3 to 5.2 took longer again. I'm expecting(hoping) the consumption will continue to drop over the coming weeks.
I have been tempted to reset the reading and see what I can achieve in a one-off trip but I reckon that the best way to really test the consumption is to do it over an extended period and so I will resist the temptation for now and see just how far the current downward trend continues.

Russ

My best display was 7.0l/100 on my last trip to the countryside and 9.5-9.7l/100km around metro areas. When she's filled up the distance empy reading is only around 470-480 km, i worked out if she takes 9.7l/100km as an average then a 53l fuel tank should last for 530km,this I don't quite get it really. Should have bought the diesel though :)

Seoul-mate,

If you realise that the trip computer calculates average fuel consumption from the last time it is reset, it will therefore drop more slowly the loger you drive it and never reset it. That is how averages work.

Total litres of fuel used divided
____________________________ = Litres / 100 km

Total km travelled divided by 100

The longer you go, the less variation that occurs when variations in actual fuel consumption occurs.

I guess I am saying that you are not getting a real indication of what fuel you are using at a particular moment in time because it is only a minor part of the total.

Many vehicles have two figures on the trip computer, namely the average consumption since last reset and instant fuel consumption. Unfortunately the i30 has only got the average fuel consumption since last reset.

That is why I reset the trip computer every tank of fuel (about 1000km) and occassionally when I want to see what the consumption is under certain driving conditions. For instance, last weekend I was towing a trailer and I wanted to see what fuel consumption I was getting. Prior to resetting, towing the trailer had little effect on the average as I had already travelled around 1000km (at 4.9l/100k). The consumption was not changing at all, even after 50km (still 4.9). I reset the computer and over the next 50km got an average of 5.2l/100km.

I hope this all makes sense.

Bob

Hi tjaliwalpa...
thanks for the input. Yes I am aware of what you are saying and I understand that the average is dependent on a lot of factors including the distance travelled.
I will continue to not reset the trip meter for the time being because I am interested to see just how low I can get down to under these circumstances. But, as you suggest it may take a very long time now to effect any further change because I have already travelled a significant distance in the past.

Thanks again.....I'll keep you posted
Russ

Well i have just over 1,000k now and had my first service yesturday, last friday i filled my tank to the top at a service station near home, i have done nothing but Sydney city driving, and my 88year old Father who is a great driver, took the car for the service, as i was too busy at work, he told me they did a lot of test driving with it, took it out twice to test, who knows why maybe they wanted to see how my cruise control works? anyway i'm just explaining this, i have the steel 195 15" Kumho tyres and have 35psi all round to cut down rolling resistance, the tyre seems to work ok no problems, ride is how i like it, the tyre has very open tread with a few wide groves runing in a straight line so less rubber on the road less resistance to rolling less friction but this is just speculation no testing other than checking they run cool. i drive smooth but have driven reasonably quick for sydney traffic i drive it like a diesel i don't rev it high. i have been useing air cond but not all the time. well i filled up today at same service station on same pump as i'll be going bush straight from work tomorrow to my GF's for weekend. i filled it too the top same as last friday, i have traveled 453K's since filling up and i got 23L's into the tank and its full right up i took my time watching foam like last time so i work that out @ 5.07L / PER 100K but will let Bob correct me if i'm wrong. now excited to go bush, will be in peak hour traffic from Sydney going down freeway M4 and up to Katoomba down Mount Victoria Pass this is high elivation so will not be ideal for best economy, then after that it gets better out past Mudgee, i'll be returning the long way ouy to near Dubbo and down the golden Hwy to maitland and down newcastle freeway to Sydney should be over 800k round trip might be 900. will then just drive in Syd till light comes on and see how far i get and how much to fill uip at same pump same servo.
sorry for this long novel just like to tell it how it is.
I love Hyundai and Hyundai love's me :beer:
John

Hi John,

I liked you Novel (reckon it will be a best seller). Will be interested to see the result of you longer trip.

What did your trip computer say was your average ltrs per 100kms?

Cheers,

Dazz

Hey Dazz, this is an SX m8 no trip Computer that is why i had to make sure it was full both times on same pump same place as much harder to get accurate #'s without the Trip PC, but i have used them in the past and done a lot of testing in different cars to see what helps mileage, was thinking i could strip some weight out like rear seat and so on to help even more but won't go to those lengths just yet. if K&N make a direct replacement filter that could also help economy but doubt they would have one, if they have a direct replacement you could use it then drop in your stock one b4 services, bet they would be puzzled why stock was so clean :) could always say you kept an oily rag iover the air pick up lol

Wonder why they don't use the term "poverty pack" in their advertising.... :P

Well, povvo pack here, I take note of my figures by hand lol

I topped mine up tonight purely as it was payday. 326.1km for 14.58 litres = 4.47 l/100km!!! Admittedly mostly country running this time, but I havent been watching my speed or anything lol - I even filled to the second click as I didnt beleive the pump

Well, the guage didnt look right tonight, so I thought I'd go back and try refilling it at 187km to get it back to normal - and it took 12.5 litres for 6.44l/100km. My driving hasnt been any different so I mustnt have filled it enough last time grrrr

Hi OZ

Don't stress...by my calculations if you add both mileages together and both lots of fuel then do the calculation it's around 5.27 still better than a poke in the eye with a sharp stick (and about the same as my average) :amen:

Cheers,

Dazz

Oz snowman, it's very hard to fill right to the top, but Bob gave me a good account of what he did you have to keep watching the foam wait for it to go down and keep filling it up till full to the top to really check economy withj out a trip PC mate. i found the Cruise Control helps me as i was driving non stop for hours and set it at about 1,900 rev in 5th gear it pull's any hill i went up and some were real hill's too! now after my return i can feel it has more grunt down low pulls good lower than i thought.

Yeah thanks Dazz, that number pretty much matches what i've been averaging so far!



Yeah, I also think I may have grabbed the high flow pump by mistake too now that I think of it!

Just averaged a very nice 8.03L/100km on my latest tank of fuel. This was from a mixture of city and highway driving, probably about 70% in favour of Highway driving. This included overtaking, A/C on all the time and some lead footedness around the city. And remember this is a petrol auto. I'm impressed!
:beer:

Good one buddy :460:

Is it my imagination or haven't you been around much lately... :00000732: back!

Don't forget to re-register at our "new" new site...

www.i30ownersclub.com

Cheers,

Dazz