Fuel economy still terrible

[coffeemad1]

I posted a year ago after buying
my Tucson 1.6 TGDi 48v MHD 180 N Line S
4WD DCT. At that point I was really disappointed with the fuel economy. As per advice I’ve ran it through all four seasons and got better at driving it.
The car is now 1 year old and I’m even more disappointed!
I drive a mix of urban and motorway and my fuel economy is 29.2 mpg.
Why is it so bad? I’m struggling to see the point of a mild hybrid system. Surely no modern car should have such poor fuel economy.
In addition the after sales service is awful. My engine management warning light and 4WD warning light come on intermittently. It is over 2 months until I can get an appointment to have it looked at (have tried several dealers but 31st Aug was the earliest appointment).
Just really wondering whether it’s worth taking the hit financially and getting rid of it (was a very happy ix35 owner for years prior to this).

[kassy64]

Yes that is disappointing mpg figures. I have petrol only 1.6 litre and getting high 30s now it been run in. Yours is a 4wd, which will always have an effect in mpg due to additional weight etc.

[PhilHornby]

I’m struggling to see the point of a mild hybrid system.

https://motorway.co.uk/sell-my-car/guid ... ybrid-cars

As far as I can see, the main use of the 48V motor, is to fill in the gap in the torque curve, from 0 to 1500rpm - i.e. it makes it a bit more spritely off the line.

my fuel economy is 29.2 mpg.
Just really wondering whether it’s worth taking the hit financially and getting rid of it.

Doing a few sums ...

Say you do 10000 miles per annum and fuel costs £1.45 per litre (£6.59 per gallon).

You use 10000/29 = 345 gallons per annum X £6.59 = Fuel cost: £2274 per annum

If you replaced it with (say) a Tucson HEV that does (say) 44mpg, it would cost £1498 per annum.

You would save £776 per annum, but it could take a long time to offset that against financial loss of trading the vehicle in.

(A Tucson N Line-S HEV purchased in March 2023 for £40K is now worth £27750, according to Motorway.co.uk. That sounds about right, given that you can buy a 1.5yr old HEV, via Autotrader, for £32K ish. I don't know how the MHEV depreciation compares, but you could go through the same exercise).

[coffeemad1]

That’s really helpful. Appreciate the figures.

[coffeemad1]

Yes that is disappointing mpg figures. I have petrol only 1.6 litre and getting high 30s now it been run in. Yours is a 4wd, which will always have an effect in mpg due to additional weight etc.

Thanks. I wish I had just gone for the petrol. I’d be very happy with that fuel economy.

[kassy64]

[quote=kassy64 post_id=14125 time=<a href="tel:1718955752">1718955752</a> user_id=1925]
Yes that is disappointing mpg figures. I have petrol only 1.6 litre and getting high 30s now it been run in. Yours is a 4wd, which will always have an effect in mpg due to additional weight etc.

Thanks. I wish I had just gone for the petrol. I’d be very happy with that fuel economy.
[/quote]
I’ve come to the Tucson from a Nissan x-trail 1.6 diesel and I would easily get mid 50’s mpg. Fill up and the tank would last for absolute ages and the fuel gauge never seemed to move. I do miss that but don’t do the miles anymore since retiring so not really an issue. Shame diesel’s are no longer seen as an option due to green issues.

[r0n]

Yes that is disappointing mpg figures. I have petrol only 1.6 litre and getting high 30s now it been run in. Yours is a 4wd, which will always have an effect in mpg due to additional weight etc.

Thanks. I wish I had just gone for the petrol. I’d be very happy with that fuel economy.

To give a bit balance my petrol manual gearbox car has an average of 32.9 mpg . Around town it'll do as little as 17 / 18 mpg on a longer run it'll do around 39 / 40 mpg . Personally I wouldn't buy another petrol Tucson , nice car though it is . Having had diesels for years before this car , I'm more inclined , road taxes allowing , to go back to diesels when the time comes to replace this car.

[XADE]

Yes that is disappointing mpg figures. I have petrol only 1.6 litre and getting high 30s now it been run in. Yours is a 4wd, which will always have an effect in mpg due to additional weight etc.

Thanks. I wish I had just gone for the petrol. I’d be very happy with that fuel economy.

To give a bit balance my petrol manual gearbox car has an average of 32.9 mpg . Around town it'll do as little as 17 / 18 mpg on a longer run it'll do around 39 / 40 mpg . Personally I wouldn't buy another petrol Tucson , nice car though it is . Having had diesels for years before this car , I'm more inclined , road taxes allowing , to go back to diesels when the time comes to replace this car.

To add in more, my petrol averaging around 37-38mpg, you must be doing very short runs a large percentage of the time. I can easily goet 45mpg on longer runs too.

But, it's all subjective on where you live and the types of journeys you do. Mine is split between school runs and 13mile commute's to the office twice a week.