sorry dont know conversions but my v6 2.7 4wd tucson mileage has increased from 15.9 mpg at 1000 miles to 21.5 mpg ar 2000 miles . I hope this has helped :clap:

With the aircon going 90% of the time, mixed driving computer hovered around 13.5 up to 14 sometimes in the cars first 1000k's. This included some very soft sand work. Premium unleaded seems to make quite a big difference to the economy and torque, with a perceived decrease in the trip computers reading of about 1lt/100km over standard unleaded (92 RON I think) It seems like the RON of the fuel is a big issue. The engine probably uses a 'closed loop' knock sensor timing control. The computer constantly increases ignition advance until the knock sensor senses detonation 'pinging - but before you can actually hear it' and retards it a little, then does it again and again very quickly. This keeps the advance as high as possible with the fuel quality. Retarding the timing has a huge effect on power and economy. Thats my theory anyway - and I'm going to keep using premium from now on (98 RON). I also noticed the rear of the exhaust appears to have quite a restriction where it passes under the diff. It is flattened out for ground clearance. I'm not sure of the cross-section area at its smallest but visually it looks like a restriction to me. Could open up a few more kW and better economy, but not sure what affect that would have on warranty etc.

This post has been edited by Lucifer: Feb 19 2005, 07:37 PM

Sounds exactly the same as what I am finding Lucifer.

I had also thought that the exhaust was a bit compromised under the rear diff/axl area with the squashed flat section. Would certainly make some herb difference if it wasn't there.

As for the premium I think I mentioned it before but if you stick to the BP Ultimate it also has detergeant properties which keep your internals clean.

And we all like our internals clean....don't we :blush:

Fuel consumption of the Tucson seems to have become an obsession. Those with a trip computer can reset it when you fill up. When you drive out of the Servo after filling the tank, the fuel consumption readout will probably read 16/18ltrs per 100 km for the first 100 metres. Thats because its averaging your acceleration out of the servo and onto the road. Keep watching, and it goes down.

The BMW X3 which is a similar size to the Tucson has 2.5ltr in line 6cyl and averages 11L/100km with a 5 speed auto, (extra gear to the Tucson) and produces more power. There is not a lot in it. If you want to own a smallish SUV and save on a bit of fuel you can go and buy an X3 for AUD$67.000. Oh yes, add a sunroof AUD$3300. The Tucson Elite has just about everything the X3 has and a few things it hasn't as standard.

Its no use making anything useful of the average fuel consumption until you have at least done a few thousand k's. If you had done the research before buying you would know that higher fuel consumption is normal for them. I've said in other places that I'm averaging just on 13ltr/100km after 1500km of city and country driving. I'm :D. Just enjoy the vehicle and it's many advantages.

This post has been edited by Crowie: Feb 23 2005, 11:18 PM

I agree Crowie. I suppose a lot of people on the forum, myself included, are enjoying our first SUV and I'm sure we purchased our Tucsons for a great variety of reasons, probably none of them much to do with fuel economy. It's time to think again of all those excellent reasons when our hip pocket feels a little bruised after filling up. The big test for me will be towing our pop-up when next we take to the road on holidays. It used to cut our Toyota Avalon distance per tankful from around 550 to about 350 km.

Howzit Boet

Old SA in Canada and have just bought a 2.0 I 5 speed,have a long story to tell
about the car but so far ( to early to tell ).Around town I get +/- 15 km/l and open
road +/- 11.5 km/l.


Rusty

hi,
just want to add in general im happy with my tucson too (apart from today when the alarm would not close the front door! something must have froze!). I was only pissed off with the fuel consumption as Hyundai gave it almost the same figures as my old Santa Fe 9.8 vs 10 for mixed driving, so when I got about 50% less km/full tank I was shocked. I know the quoted figures by Hyundai are in ideal conditions but 18.5l or 275km/tank is a bit too way off. (pocket very bruised as its about 65 euros a refil!) You guys down under seem to get much more what I would have expected... ie around the 12-13 mark. Ive almost 2000km on mine now, and its dropped from 19.1 at the start to 18.1 ish. At least its going down though!
One theory could be that its summer and warm where you are, were here its between -10 and +5 deg. Maybe that effects it some how.

good luck towing the pop-up(?), im sure the tucosn will take it in its stride.

cheers
Neil :thumbsup:

Hi there just an update, I have 8,000km on my clock and I am averaging around 500km/tank of petrol. You are right, it is warm here, summer actually, around 30deg celcius everyday. I would imagine this does make a difference. The highest my FC has been was 14L/100km when brand new, then I was getting 450km/tank for ages but I have just noticed since clocking 7,000km on the clock it has dropped some more (500km/tank) and the engine has loosened up nicely. So hang in there!!

Onboard computer? My Hyundai doesn't have an onboard computer, just a trip meter. Another cost-cutting thing in addition to the lack of side-impact airbags on Canadian models? :crying:

The base model in sweden does not have the computer either, or the tinted windows, or the cladding on the outside over the wheel arches and doors. but sport model does. All models here come with 6 airbags. :clap:

to be honest though, the on board computer is not worth having.... its just depressing to see the thirsty tuctuc guzzle petrol. So I only have the trip computer showing on mine these days!

Hello I have a Top of the line V6 4x4 Tucson that was sold in Canada. I have had it for a month now. I really like the vehicle but I am really suprised that such a small SUV with such a small motor uses so much fuel. On a recent trip of 983 km it used 12.1L/100km. The brochure and transport Canada has this vehicle listed as 8.8L/100km Highway and 11.8L/100km City. As you can see fuel consumption highway driving at the speed limit of 100 km/hr is very high.

If everyone is getting such poor fuel mileage, possibly we should begin a class action law suit to get compensation. It is the responsibility of Hyundai to publish reasonable fuel consumption figures.

I probably would still have purchase my Tucson as it was $7000 less than a Honda, Ford, or Toyota and because of the company's reputation for quality and features. A $7000.00 savings will buy about 8000L of fuel.

Hey everyone! I just bought a Tuscan and am loving it. As far as feul consumtion goes, it will get better by about the 4000 to 5000 km range. Don't trust the electronic readout on the dash, as it is just an estimation and not precise.

I have 2400km and on the last fill-up averaged 12.5L per 100km.Not to bad
Using 81 octane fuel Steve k
Abbotsford , B.C. Canada

if I would live on a small island then I would buy a Bike ! !

:P

hey guys, have posted some pix in my other post "i get mine next week"....check out my baby.

my fuel consumption after 250km's is 13.9 l/100km according to the tripcomputer.

when i first picked up the car with 13kms on the clock it was reading 25 l/100km, obviously this was coz the computer and engine didnt have enough km's to work out an average right at the start (i figure)

after 100kms it was down to 16 or so.

it keeps on dropping although this has slowed down now. if it goes down to 12 eventually i will b happy.

this is using repsol premium 98 octane petrol by the way. this probably also helps with better fuel consumption. i could also use 95 octane but have decided to at least run in the engine with the more expensive premium stuff. after that i will have to decide whether its worth investing in the more expensive 98, in return for better fuel consumption and torque, or whether it's more viable to be using the 95 octane.

cheers.

Hi,
I just tried the 98 octane stuff but it made no difference than regular 95 unleaded. I had read somewhere before that unless the engine actually states it needs 98 (like a saab aero for example) you wont see a big performance difference. Something to so with if you use too low a grade than the engine can handle you get knocking in the engine.

i also read a post from someone who said to reset the consumption meter. I tried it for a laugh by holding in the button until it blanked. Now it seems to give figures in real time rather than an average. Ie if you sit at traffic lights it shoots up to 24l/100km and then gradually comes down as you drive to about 17/18 ish. Does anyone know how to make it go back to a more stable average. Its hopping up and down like a yo yo!.

(before it hardly moved from 18.2 at all.)

cheers
Neil :mellow:

ps congrats on your new tucson!

[quote=neil oconnor,Mar 13 2005, 03:28 PM]


i also read a post from someone who said to reset the consumption meter. I tried it for a laugh by holding in the button until it blanked. Now it seems to give figures in real time rather than an average. Ie if you sit at traffic lights it shoots up to 24l/100km and then gradually comes down as you drive to about 17/18 ish. Does anyone know how to make it go back to a more stable average. Its hopping up and down like a yo yo!.

(before it hardly moved from 18.2 at all.)

Hey neil, I did that by accident. I reset my trip km's everytime I fill up to manually monitor the FC but once I must have reset it on the L/KM page and not the trip km's page. It flashed _ _ _ _ _ and then went down to 9L/100km (it usually sat on 12.2L/100km) It went up and down like a yo yo for a couple of weeks..took a while to stabilize and is now sitting on 12.1/12.2L/100km and has been stable on that reading for a few weeks now. So i think it is just resetting the L/100km's and must take a while to get a figure as it is resetting from scratch. My guess anyway as mine if fine now it just took a while.

hi there,

well i refuelled last night for the first time and manually checked my fc and it came to 13.8 l/100kms. and thats exactly what the trip computer showed at the end of the tank so it seems absolutely spot on in my case.

kyl72 you are absolutely right, the trip computer shows the average so when you first reset it, it takes a while to recalculate it. my assumption would be that it takes 100 km of driving for the trip computer to give you a realistic average in l/100kms.

eg. my trip computer now shows 16 l/100km, but then i have only done 10 kms since refuelling. i am sure as i get closer to 100km, it will drop down to 13.8 again.

i am hoping that within a few weeks it will go down some more... :P

if it goes down to 12ish i will b quite ok with it.

You don´t get better fuel consumption switching to 98 instead of 95. You will get better acceleration if your Car is high performance enough.

So most likley no effect on a Tuscon

:)

This post has been edited by qsecofr: Mar 16 2005, 05:23 AM

you dont neccessarily getter better FC but it is better for your engine...at least the BP and Shell premiums in Aus are. They contain detergents that clean your inlet valves and fuel injection, and they are both much better for the environment.I am using the premium for the long term benefit of my engine. When I tried the regular petrol I did get 25km less per tank of petrol....not really a great difference.
"Shell Optimax helps reduce system carbon deposits, promoting more efficient combustion. Cleaner fuel injection nozzles encounter less hang-up, promoting a faster and more complete burn. Engines running with Shell Optimax should stay cleaner and so perform more efficiently.The special cleansing properties of Shell Optimax care for your car’s engine – regardless of age. Built-up carbon deposits on inlet valves are removed and fuel injector nozzles are also kept clean and in peak condition." :57: