There have been a number of postings elsewhere on this forum about i30 fuel economy. I though we could bring it all together here in a new thread.

What do you think? Add your ideas and economy info if you feel so inclined.

Aussie Bob
tjaliwalpa

I'll get the ball rolling.

Our i30 (have to say OUR or my wife and children may be offended) is just 4 days and 800km old. Below is a summary of figures so far taken from the on board computer.

5.3l/100k on 300km trip with aircon going flat out, 4 people and luggage, driving between 80kph and 110kph and varying speed on open road, mostly in 4th and 5th.

4.6l/100k on flat road, no aircon, driver only, varying speed between 80kph and 100kph. I'm very pleased with that result.

Aussie Bob
tjaliwalpa

Hi,

there is a nice service - concerning fuel consumption,
Mileage calculator

I don't know if it is allowed to put in here such a links - but it's worth seeing.

Krzysztof

Hi Aussie Bob

Now thats what i call goood consumption.Hopefully i can get close to that at the weekend.
cheers ian

I though of another factor which could have helped with fuel economy this morning on the way to work. It was cool (about 15 degree C) and I remember someone saying that diesel engines look to breath cool air. Just a thought.

I'm still at work, driving home later this evening after a meeting. Will report on the return trip later.

Aussie Bob
tjaliwalpa

My first tank of fuel in my i30 SR Auto (Petrol) returned 9.3L/100km. Not too shabby for mostly around town driving! The official 'combined' (Highway & City driving) consumption for the SR auto is 7.6L/100km.

A great website for instantly telling you your fuel economy on L/100km based on litres consumed when filling and km traveled can be found here.

:beer:

buddyforu,

Would be interested to see what the petrol would get on a trip on open country roads when you get a chance.

The following was posted elsewhere:
I'm being careful with driving but still varying speeds. Travelled a little slow last night when coming home in the dark (some roos out our way at night). With aircon on low and travelling between 70 and 100k, the trip meter gave an average of 4.4l/100k. Very impressed. :grin:

On the way home today, the i30 will clock up 1000k :beer:

Aussie Bob
tjaliwalpa

WOW tjaliwalpa, that is impressive. I'm hoping that I can take the i30 on a long trip soon (down to Mackay and back, about an 800km return trip) to get some Highway figures. Should be interesting!

Find I'm averaging approximately 6.6-7.0l/100km for my everday driving which is very much stop start and traffic lights all the way.

Only real higfhway trip so far was around the 5l/100km mark. Mind you my climate control is on auto the whole time.

funkigreendog,

Your figure of 5l / 100k for highway sounds about the same as mine (when I'm using auto climate control).

Todays figures to work and back (around trip of about 150k) gave me a 5l / 100k average for the day. That is travelling out of the town I live in and on a very flat raod to the next town at the other ned of the journey. As it was hot today I used climate control

Yesterday I didn't use the aircon and I got an average of 4.5l / 100k.

Either way, I am happy with the result.

Aussie Bob
tjaliwalpa

Fantastic Bob! Does the Trip Computer tell both average and actual as it happens L/100K ?

Bob can i ask what brand of diesel you run on?
Thank's John

John,

Trip computer shows average since last reset. I guess if you want the current you can reset it. Within 50m it should start giving you a new figure which will in effect be a new average, but you will lose the old average. I did this a few times on our first trip.

I don't know what diesel te dealer put in (they had it full when we took delivery). Our first and only fill was at United (Mildura). On Friday my wife will most likely refill at Caltex as we have a 10c per litre discount on our Woolworths card to use.

At the next refill I shall try to work out a figure which will give some indication of the acuracy of the trip computer's l / 100k.

Bob

Today's fuel economy is down somewhat. It was a very hot day and I used the climate control on auto today. I also traveled up around the speed limit on the roads I drove on. overall trip computer reading was 5.4l/100k.

Interestingly, the distance to empty seems to be coming closer to a realistic figure. Since filling up we have done 772kand it is saying we have 122k to empty. The guage is now half way between 1/4 and empty. When we fill up tomorrrow, we will have more of an idea about the accuracy of distance to empty and the accuracy of the fuel guage.

Bob

Thanks Bob, was just wondering what is the best diesel fuel and if one helps economy more than another. i read where someone said there is aditives that help economy with diesels but thats as much as i know.
John

Today my wife took the i30 for its free service. She filled the car before which revealed the following:

Fuel added: 47.41 litres
Distance covered: 852 km
That equates to 5.56 litres per 100km

The distance to empty indicated 60 km. After filling the car the distace to empty jumped to 620km.

From this I deduce the distance to empty gets closer to a realistic figure closer to empty, and even then it is very conservative.

Bob

I have been interested in the accuracy of the trip computer's litres / 100k reading. To test it out, we filled up and reset all sections of the trip computer and never reset them until we filled up again.

Results showed that the trip computer's accuracy came within .04 of the manual calculations based on fuel added and distance travelled.

The manual calculation gave 5.34 litres / 100k whle the trip computer gave a reading of 5.3 litres / 100k.

The above figures included some winding country road driving, some highway driving up to speed limits of 100kph and 110kph, and some driving within town limits, 468km in total. We added 25 litres.

Bob

Thank's for taking the time to report your findings Bob.
I'll be ordering mine within a week, i think i'll order SLX diesel, i'd like it in white, but would take continental Silver or that nice bright blue.
John

Hi All
Took the i30 to Melbourne for the weekend (from Adelaide). The car made it so easy, nice and comfy, and overtaking in 5 th gear simple.Best of all was the consumption 750km on 39l which gives 5.2l/ 100km :) .The winds were pretty strong and the aircon was on the whole time as the temp was between 38 and 42.On the return trip we stoped at Horsham for the night and filled up the next day, economy a bit higher at 5.9 but still good.Car has now done 5500km and no problems so far.
cheers Ian