Author Topic: I30 excessive fuel use?  (Read 593 times)

0 Members and 1 Guest are viewing this topic.

  • *
  • Posts: 6
  • gb United Kingdom
    Lancashire
I30 excessive fuel use?
« February 10, 2017, 21:21:28 »
Hey guys I'm probably fussing over nothing but I bought an I30 last week, mainly based on its great reviews and superb fuel consumption.  I've been driving it for the past week, probably clocked up 150-160 miles, (not huge I know) but the tank was topped off on the day I got it and is now showing just over half full. 

With an advertised range of nearly 700 miles, I'm a little concerned I may have bought a lemon, my driving style is not excessive and the routes have been a mix of motorway and major roads.  the trip comp says an average of low forties, but the tank holds roughly 11 gallons right? With this trend I'd expect to see a range of around 300 miles, which if my sums are right is an average of 27mpg.

Am I missing something or relying on the trip comp too much? Its my first diesel so I fully expected a learning curve and I know its early days, but I'd rather get ahead of things if theres something I can check on.

Any help or advice would be greatly appreciated.

Tim
  • 2009 I30 5 Door Hatch, Diesel 1.6lt, Manual, Red

  • *
  • Laughter is the Best Medicine...
  • Posts: 53,425
  • au Australia
    Devonport Tasmania
  • Best Car Forum on the Net
Re: I30 excessive fuel use?
« Reply #1 : February 11, 2017, 00:20:37 »
Hi Tim and :welcum:

You are jumping the gun a bit!

When you say it was topped off, was it definitely brimmed and not just filled until it clicked off? That can make a big difference.  Anything up to another 10 litres can sometimes be squeezed in...

Neither the fuel gauge or trip computer are super accurate particularly with regards to distance until empty which is VERY conservative in most cases.

You need to do a couple of brim to brim calculations to get a better idea of where you are at.
  • 2014 Calais V & 2014 1.6 GDi Tourer (Prev had 2008  i30 CRDi & MY11 Petrol CW)

  • *
  • Loco, most of the time!
  • Posts: 21,844
  • au Australia
    Mos Eisley, South Australia
Re: I30 excessive fuel use?
« Reply #2 : February 11, 2017, 04:49:18 »
Wait to see the final results.
  • 2008 SX CRDi Auto White (Lila)
    2010 SLX CRDi Auto Red (Ruby)

  • *
  • Author
  • Posts: 6
  • gb United Kingdom
    Lancashire
Re: I30 excessive fuel use?
« Reply #3 : February 11, 2017, 05:43:48 »
phew, thanks guys I appreciate the reassurance, going from a punto with about 3 miles per gallon to this, I was a bit concerned.
  • 2009 I30 5 Door Hatch, Diesel 1.6lt, Manual, Red

  • *
  • Posts: 39,352
  • england England
    Manchester, UK
    • i30 Owners Club
Re: I30 excessive fuel use?
« Reply #4 : February 11, 2017, 05:48:59 »
My 2008 FD CRDi consistently obtained 60-62 mpg covering similar road conditions as yourself, although mine was black not red :P

As others have said, the fuel gauge and DTE aren't the most accurate on the planet, so just give it time :D
  • Phantom Black 2014 i30 Style Nav 1.6 CRDi 128ps 6speed manual

  • *
  • Author
  • Posts: 6
  • gb United Kingdom
    Lancashire
Re: I30 excessive fuel use?
« Reply #5 : March 15, 2017, 18:50:03 »
Quick update, whilst checking if the front brakes were binding I noticed that the from offside spring was broken, took it back to the dealer and they swapped it out free of charge as it was still under warrantee, (I bought it a month ago).  Recently went though I don't think it's been that way for long, on thursday there was a spoinging noise which was disconcerting to say the least.

By the way, the front brakes were binding, I've not had chance to check the near side as I hastily put it all back together and took it in when I found the spring, but the ofside front had one slider on the caliper so crudded up that I had to get  it in the bench vice and use a crowbar to get it out of the housing. the pads were distinctly wedge shaped.  Got it back together smooth as silk now but I did notice it was a different slider to the others, they had rubber o rings on the ends, this was just a straight shaft (albeit quite faceted now, looked almost as if someone had taken a grinder to it)  so I might treat myself to an overhaul kit as the whole lot is only £12 on ebay.

My new set of pads just arrived so I'll slap them on and hope the nearside doesn't give me as much trouble.

Hoping the economy improves too,  though the trip comp still says around 370 miles for a full brimmed tank  :)  I've done over 250 on half a tank already, I think mine could have been a friday afternoon job.
  • 2009 I30 5 Door Hatch, Diesel 1.6lt, Manual, Red

  • *
  • Laughter is the Best Medicine...
  • Posts: 53,425
  • au Australia
    Devonport Tasmania
  • Best Car Forum on the Net
Re: I30 excessive fuel use?
« Reply #6 : March 16, 2017, 06:01:49 »
Take absolutely no notice of the DTE until the light comes on and it shows about 50kms left (then head for a garage)  :cool:
  • 2014 Calais V & 2014 1.6 GDi Tourer (Prev had 2008  i30 CRDi & MY11 Petrol CW)

  • *
  • Posts: 692
  • au Australia
    Samford Valley
Re: I30 excessive fuel use?
« Reply #7 : March 16, 2017, 06:42:04 »
wow, in 30 odd years I cant remember coming across a broken coil spring. Some a bit saggy but, gee that must had some punishment.  :Shocked:
  • 2016 1.8 Auto; 2009 2.0 Auto; 2010 CRDI Auto

  • *
  • i30 CRDi 85 kW 2008
  • Posts: 4,156
  • dk Denmark
    Sdr. Omme - DK
Re: I30 excessive fuel use?
« Reply #8 : March 16, 2017, 08:08:41 »
wow, in 30 odd years I cant remember coming across a broken coil spring. Some a bit saggy but, gee that must had some punishment.  :Shocked:
Then you haven't worked on many VW's.  :mrgreen:
  • i30 CRDi 85 kW 5 Speed 2008

  • *
  • Posts: 179
  • au Australia
    Camden, NSW
Re: I30 excessive fuel use?
« Reply #9 : March 16, 2017, 16:44:06 »
Fuel gauge ?, fuel guess more like it.
Our alarm comes up with 80km till Empty, still shows 1 bar on graph.
Fill up straight away and she takes 40l, the tank holds 50l.
At 7/100 as shown  on display,  that's another 150 km.

Anyway, years ago a mate had a car that showed 1/4 left - that was when it sputtered to a stop, in peak hour, he thought it really good on the juice.
Everyone else thought it was hilarious   :rofl:
  • 09/2016 GD4 SII Active X 5dr Hatch Petrol 1.8 Auto 6sp white

  • *
  • Posts: 692
  • au Australia
    Samford Valley
Re: I30 excessive fuel use?
« Reply #10 : March 16, 2017, 17:11:09 »
wow, in 30 odd years I cant remember coming across a broken coil spring. Some a bit saggy but, gee that must had some punishment.  :Shocked:
Then you haven't worked on many VW's.  :mrgreen:
Interesting.
Played with some beetles in the early days,
then came across a VW 'Piss Hat' as they became known down here, and have avoided the brand ever since.
  • 2016 1.8 Auto; 2009 2.0 Auto; 2010 CRDI Auto

  • *
  • Posts: 692
  • au Australia
    Samford Valley
Re: I30 excessive fuel use?
« Reply #11 : March 16, 2017, 17:13:50 »
Anyway, years ago a mate had a car that showed 1/4 left - that was when it sputtered to a stop, in peak hour, he thought it really good on the juice.
Everyone else thought it was hilarious   :rofl:

 :evil: :rofl:
  • 2016 1.8 Auto; 2009 2.0 Auto; 2010 CRDI Auto

  • *
  • Posts: 692
  • au Australia
    Samford Valley
Re: I30 excessive fuel use?
« Reply #12 : March 16, 2017, 17:17:58 »
wow, in 30 odd years I cant remember coming across a broken coil spring. Some a bit saggy but, gee that must had some punishment.  :Shocked:
Then you haven't worked on many VW's.  :mrgreen:

Is corrosion from winter salt on the road a factor?
  • 2016 1.8 Auto; 2009 2.0 Auto; 2010 CRDI Auto

  • *
  • i30 CRDi 85 kW 2008
  • Posts: 4,156
  • dk Denmark
    Sdr. Omme - DK
Re: I30 excessive fuel use?
« Reply #13 : March 18, 2017, 11:15:43 »
wow, in 30 odd years I cant remember coming across a broken coil spring. Some a bit saggy but, gee that must had some punishment.  :Shocked:
Then you haven't worked on many VW's.  :mrgreen:

Is corrosion from winter salt on the road a factor?

I would say no. It snaps on places where the spring haven't reduced in diameter, most common is the last round/winding. I can only think it's because the steel isn't clean enough/poor quality and hence fatigue is the culprit.
  • i30 CRDi 85 kW 5 Speed 2008

  • *
  • Loco, most of the time!
  • Posts: 21,844
  • au Australia
    Mos Eisley, South Australia
Re: I30 excessive fuel use?
« Reply #14 : March 19, 2017, 02:35:55 »
Remember the exhaust is extremely hot when driving so water will react with the metal at the point of drying out. This is a well known occurrence in commercial refrigeration water towers. You could have driven over some other corrosive material in liquid form too.
  • 2008 SX CRDi Auto White (Lila)
    2010 SLX CRDi Auto Red (Ruby)

  • *
  • Author
  • Posts: 6
  • gb United Kingdom
    Lancashire
Re: I30 excessive fuel use?
« Reply #15 : March 25, 2017, 07:28:27 »
Couldn't say how much punishment its had I only got it in Feb. 

SO after another fill up, I've got 430 miles off a tank, which when the light came on, let me put 42 litres in give or take.

Which by my, albeit probably poor maths, gives me approx 46 miles per gallon. Which was better than my punto but disappointing compared to the advertised 62mpg which was a major attraction when buying.

Is there anything mechanical that can cause poor economy? I don't think its the driving style, I'm not exactly a lead foot boy racer.  Like I said, the front brake was binding slightly but even after fixing it didn't seem to make a great deal of difference.

I'm a little bit baffled.
  • 2009 I30 5 Door Hatch, Diesel 1.6lt, Manual, Red

  • *
  • Posts: 692
  • au Australia
    Samford Valley
Re: I30 excessive fuel use?
« Reply #16 : March 25, 2017, 21:23:32 »
My 2008 FD CRDi consistently obtained 60-62 mpg covering similar road conditions as yourself, :D

60 miles = 100 km

  therefore = 4.6L/100km  :Shocked:


Pooty_apple_water,

This is a bit confusing when you guys are living in the past and combining miles with litres and gallons.

Remember , Trump is not on HM's throne yet, so you still must use imperial, not US gallons.
 1 imp gal = 4.6 litres

As mandated, Hyundai supplies lab reports (as do other car makers) to give comparable data (make v make). This isn't real world/on road mileage.

The CRDi i30  fuel consumption, provided by dealers, is:

 Urban - 5.6l/100Km
•Combined - 4.5l/100Km
•Open Road - 3.7l/100Km

From your figures you have done 430 miles = 688 km
you used                                    9.1 gallons = 42 litres
therefore your consumption is      47.25 mpg = 16 km/L  or  6.25L/100km

This is close to the common figure , some members report over 7.0L/100km


  • 2016 1.8 Auto; 2009 2.0 Auto; 2010 CRDI Auto

  • *
  • Use it or lose it!
  • Posts: 11,935
  • au Australia
    Melbourne
  • Callsign GUNZ
    • Professional Biography
Re: I30 excessive fuel use?
« Reply #17 : March 25, 2017, 21:36:18 »
:disapp:
The sooner we let go of imperial altogether the better off the whole world will be. Great point about confusing British and US measures but it just goes to show it's all fixed by graduating to a world standard! :rolleyes:
  • Frugal Firty: 09 HyperSilver 5sp SLX CRDi with full body kit

  • *
  • Posts: 692
  • au Australia
    Samford Valley
Re: I30 excessive fuel use?
« Reply #18 : March 25, 2017, 21:42:48 »
If Elizabeth reigns you remain Elizabethan.  :rolleyes:
  • 2016 1.8 Auto; 2009 2.0 Auto; 2010 CRDI Auto

  • *
  • Loco, most of the time!
  • Posts: 21,844
  • au Australia
    Mos Eisley, South Australia
Re: I30 excessive fuel use?
« Reply #19 : March 26, 2017, 00:26:07 »
Diesels are more efficient over long runs. Have you been doing short trips and other fuel wasting exercises.

I did a long drive about 70kms after filling the fuel tank and reached home with 4.8 l/100k in an old design 4 sp auto. I was very pleased.
  • 2008 SX CRDi Auto White (Lila)
    2010 SLX CRDi Auto Red (Ruby)

  • *
  • i30 CRDi 85 kW 2008
  • Posts: 4,156
  • dk Denmark
    Sdr. Omme - DK
Re: I30 excessive fuel use?
« Reply #20 : March 26, 2017, 15:37:05 »
I can understand you're not happy with around 6L/100km. The car can do better unless you do many short trips and/or city driving.

My 2008 is rated at 4,7/100 and I normally get around 5,0/100 but that's only because I drive like a Nanny (and ca 85% main roads with little traffic)
  • i30 CRDi 85 kW 5 Speed 2008

  • *
  • Author
  • Posts: 6
  • gb United Kingdom
    Lancashire
Re: I30 excessive fuel use?
« Reply #21 : March 28, 2017, 14:34:26 »
yeah imperial measures drive me crazy, why do we have to mix the buggers?   

Anywhoo, my daily trip to work is about 17 miles each way, not especially long but not trips into town either.  ITs about a quarter motorway then the rest major roads of 40 to 60 except through Adlington where it obviously slows to 30.

Now, a thought occurred to me the other day.  Is the trip comp accurate when it comes to distance?  I assume the odometer is, but I've been taking my mileage readings from resetting the trip comp when I fill up.  I'll have to take a note of the odo reading and compare it to the trip comp

  • 2009 I30 5 Door Hatch, Diesel 1.6lt, Manual, Red

  • *
  • Laughter is the Best Medicine...
  • Posts: 53,425
  • au Australia
    Devonport Tasmania
  • Best Car Forum on the Net
Re: I30 excessive fuel use?
« Reply #22 : March 28, 2017, 15:04:21 »
I don't think the inaccuracy of the tc would be significant enough over shose sort of distances (a tankful) to make much difference to your economy calculations unfortunately.
  • 2014 Calais V & 2014 1.6 GDi Tourer (Prev had 2008  i30 CRDi & MY11 Petrol CW)

  • *
  • Posts: 170
  • se Sweden
    Varmland, Sweden
Re: I30 excessive fuel use?
« Reply #23 : March 28, 2017, 15:13:14 »
Try combining 3-4 tanks worth of fuel/miles. Mine go high/low every other now. Mine is rated 4.5l/100km, and my all time average 50k km, is 4.49. Latley ive been blessed with 4.2s.

I drive 150km with light traffic, barley any stops(usually none) at 70-90kph daily. Road is hilly though.

Odo and trp go within 0.1% difference(think odo rounds up, trp has 1 decimal). Trip computer shows within 10% it seems.
  • i30 Tourer 1.6l CRDI 81kW M6 MY2014. Odo: 53660km mar 2017.

  • *
  • Posts: 1
  • au Australia
    Tasmania
Re: I30 excessive fuel use?
« Reply #24 : April 20, 2017, 20:52:45 »
Thanks for those figures.  Makes me feel a little better about getting 5.6L/100km (combined) out of my recently purchased 2009 CRDi.
  • 2009 1.6 crdi

  • *
  • Posts: 692
  • au Australia
    Samford Valley
Re: I30 excessive fuel use?
« Reply #25 : April 20, 2017, 23:21:13 »
Welcome to the club OldLadyDriver, Thanks for adding your figures to the discussion.
  • 2016 1.8 Auto; 2009 2.0 Auto; 2010 CRDI Auto