High fuel consumption ECO

[brandyhems]

Hey guys.
2022 stinger gt, second stinger in 3 years.
Only done 10k on the car. Got it in March last year.
Thrashed it when I first got as per usual.
Drive to work is only 5 minutes away, suburban setting. Only drive to work and back unfortunately.
But have noticed high fuel consumption.
I use 95 fuel
The last 3 tanks I've had it on ECO ONLY, driving like grandma or grandad.
Averaging 300kms per tank. 17L/100kms. That's not okay.... right?
I've just had the 10k service done.
Tyres are still good. I thought it was either the tyres or the airflow. But nothing's picked up on the service techs... when brought to their attention, just said it was due to how the vehicle was driven... it seems stupid but the fuel gauge moves dramatically even when parked... I just thought it's because it's f** hot in QLD, and I've got the A/C blasting.... but not in park? I'm not sure anymore.
Has anyone had this experience??
It's going into the shop further in the week to be diagnosed.
Any suggestions I can tell them?

 

[Snicklefritz]

If you rabbit hop and idle a lot, you'll get crap mileage. Go on longer drives. Let your Stinger stretch the legs, give it the full beans once in a while. You'll keep your battery charged that way too.

 

[Ah GetFd]

Well....I am in Melbourne so let's say our driving conditions are the same. We are pushing 40C here at the moment and in any case my aircon is on 365 days. I drive a My23 on Eco most of the time outer suburban driving. That means 50kmh max occasionally 80kmh. Lots of traffic lights etc. I get 9L/100kms on Eco. But if I drop it into sport just for a short blast the consumption shoots straight to 16L/100kms.

You also have to see if your car actually goes into "coasting" mode whilst in Eco. Apart from the sedate auto changes, the engine really needs to be disconnecting from the transmission and coming back to idle to get the full advantage of "Eco". This is only going to happen when there is no acceleration or braking involved and level or gentle decline. Any other time that you are on the accelerator or brake then "coasting" won't kick in or indeed drops out. I have done 9000kms in 14 months so basically still "new" Not had the first oil change at 10,000.....

It sounds to me like you are giving it a fair amount of acceleration even in Eco mode and lets face it giving it full acceleration it is going to make no difference to the fuel consumption no matter what you have selected.

In my Eco driving it's slow off at the lights and I never stray outside the speed limit. If I give it anything else the consumption goes UP. Comfort mode for example is 13.5L/100kms...........

There is also no need to use 95 Premium fuel when 91 is absolutely normal and recommended by the manufacturer for the Stinger GT TT 3.3L

People automatically think Premium fuel is better. The experts will correct me, but Premium actually detonates LATER and is LESS volatile and the slower the fuel burns. This can prevent "knocking" caused by early detonation. It requires a higher performance engine and temperature to detonate to fully release the higher amount of energy in the premium fuel (higher potential energy in Premium does not mean more volatile), volatility is the unpredictability of the detonation of the fuel which premium prevents in higher performance engines, so if a car engine is designed around Premium fuel then buy premium otherwise in my opinion you are wasting your money on 15 cents a litre more and not seeing any benefit. It will not improve fuel economy nor will it help the environment......

 

[brandyhems]

Thanks for the reply guys.
Re; the coastal setting, my first stinger it would pop up on the speedo when it engages. But the new stinger, It doesn't, even though the settings are selected for coastal.
But I'll try the highway more often like you said.
When it came of the boat March 2023, they had to replace the battery because it was dead. And then I received it died again, but they found the problem in a tailgate, drawing too many volts.
So, I'm thinking, if something like that has happened, maybe their might be problems with other components

 

[Ah GetFd]

As long as all the conditions are met coasting should engage and be displayed in the centre screen

1. The setting under vehicle, drive mode, coasting tick box must be checked
2. Operates only above 55kmh and road gradient +/- 5%
3. Cruise control is off
4. Neither brake or accelerator is operated
5. After transmission has warmed up

 

[BIG-D]

There is also no need to use 95 Premium fuel when 91 is absolutely normal and recommended by the manufacturer for the Stinger GT TT 3.3L

Could not disagree more about this but then everyone has an opinion?

People automatically think Premium fuel is better. The experts will correct me, but Premium actually detonates LATER and is LESS volatile and the slower the fuel burns. This can prevent "knocking" caused by early detonation. It requires a higher performance engine and temperature to detonate to fully release the higher amount of energy in the premium fuel (higher potential energy in Premium does not mean more volatile), volatility is the unpredictability of the detonation of the fuel which premium prevents in higher performance engines, so if a car engine is designed around Premium fuel then buy premium otherwise in my opinion you are wasting your money on 15 cents a litre more and not seeing any benefit. It will not improve fuel economy nor will it help the environment......

You have done 9000km's and havn't changed your oil yet?
Sounds like spending money on your car is a low priority.

 

[Ah GetFd]

You have done 9000km's and havn't changed your oil yet?
Sounds like spending money on your car is a low priority.............................

The recommended first service is 10,000 KILOMETRES

The first "inspection is 3000kms which has already been done.

Do you have a new My23 car or an "old" Stinger????

The car has done 9,000 KILOMETRES

What part of 9000 kilometres being short of the 10,000 KILOMETRE service interval do you not understand?

If you are using PREMIUM in a car that is RECOMMENDED by the manufacturer to use 91 RON then you are wasting your money.

You could google it

You could read it

You could educate yourself.

Premium is NOT REQUIRED in a Twin Turbo STINGER and achieves NOTHING

........and anyone who thinks they have to get a service bang on 12 months at the stroke of midnight is an idiot..........

 

[oddball]

Ah, forums....

17L/100km ~= 21 MPG which is pretty good for city driving. Mileage will be poor when the engine is cold, so if all you're doing is short drives then, well, it doesn't help. You really need long steady state stretches to show good mileage. You're not going to get much better than the rated gas consumption numbers for city driving. The manufacturers do a ton of work to get the best possible numbers in the official testing, so you're not going to get better than that by just switching to eco and having a light foot. It's very easy to get worse than that, though!

As for the gas, if you've done any tuning then higher octane is very helpful - even critical. When stock it might be a waste. I ask my wife to run high octane in her Subaru even though it's stock and I consider it insurance. Less likely to have detonation issues in a hot turbocharged engine in a hot climate. Would it be OK with the plain stuff? Sure. But there's less of a chance of a bad tank with high test. Modern engine control is simply amazing, but it's better to prevent detonation than to constantly ask the ECU to muddle with timing to protect the engine.

Frankly, it's astonishing that the OEMs are running the compression ratios and forced induction pressures and still recommending standard gas. If you are just cruising to the store and back then it's probably fine. But if you're actually making use of the available power, well....

 

[Ah GetFd]

Ah, forums....

17L/100km ~= 21 MPG which is pretty good for city driving. Mileage will be poor when the engine is cold, so if all you're doing is short drives then, well, it doesn't help. You really need long steady state stretches to show good mileage. You're not going to get much better than the rated gas consumption numbers for city driving. The manufacturers do a ton of work to get the best possible numbers in the official testing, so you're not going to get better than that by just switching to eco and having a light foot. It's very easy to get worse than that, though!

As for the gas, if you've done any tuning then higher octane is very helpful - even critical. When stock it might be a waste. I ask my wife to run high octane in her Subaru even though it's stock and I consider it insurance. Less likely to have detonation issues in a hot turbocharged engine in a hot climate. Would it be OK with the plain stuff? Sure. But there's less of a chance of a bad tank with high test. Modern engine control is simply amazing, but it's better to prevent detonation than to constantly ask the ECU to muddle with timing to protect the engine.

Frankly, it's astonishing that the OEMs are running the compression ratios and forced induction pressures and still recommending standard gas. If you are just cruising to the store and back then it's probably fine. But if you're actually making use of the available power, well....

Good Post

The only thing I would say is 17L/100 is NOT good fuel consumption city driving

Thats what my 6.0 Litre V8 Commodore "Pontiac V8" did on a really bad day. In fact every day.

The Stinger GT runs typically at 13.5L/100kms ( 100kms = 62 miles). 4.5 litres = 1 imperial gallon. (Comfort Mode)

3 gallons per 62 miles

20.67 miles per gallon

17L/100kms is `16.4 miles per gallon........

 

[brandyhems]

My first stinger was averaging 12L/100kms
Just waiting for the dealership to see if they can find anything.

 

[Buzzman12]

Ah, forums....

17L/100km ~= 21 MPG which is pretty good for city driving. Mileage will be poor when the engine is cold, so if all you're doing is short drives then, well, it doesn't help. You really need long steady state stretches to show good mileage. You're not going to get much better than the rated gas consumption numbers for city driving. The manufacturers do a ton of work to get the best possible numbers in the official testing, so you're not going to get better than that by just switching to eco and having a light foot. It's very easy to get worse than that, though!

As for the gas, if you've done any tuning then higher octane is very helpful - even critical. When stock it might be a waste. I ask my wife to run high octane in her Subaru even though it's stock and I consider it insurance. Less likely to have detonation issues in a hot turbocharged engine in a hot climate. Would it be OK with the plain stuff? Sure. But there's less of a chance of a bad tank with high test. Modern engine control is simply amazing, but it's better to prevent detonation than to constantly ask the ECU to muddle with timing to protect the engine.

Frankly, it's astonishing that the OEMs are running the compression ratios and forced induction pressures and still recommending standard gas. If you are just cruising to the store and back then it's probably fine. But if you're actually making use of the available power, well....

Sorry, but your math is wrong on this one. It's closer to 16 mpg's.
Anyway, I posted on another thread about this gas mileage issue as well.
My new 2023 (7 months old now), with only 1,500 kms on it (about 900 miles), gets crappy gas mileage as well.
Mind you, it's 95% city driving, but still, no matter how gentle I am, it still use 16L/100kms. Not impressed.
I guess it's a good thing it's not my daily driver.

 

[Buzzman12]

You have done 9000km's and havn't changed your oil yet?
Sounds like spending money on your car is a low priority.............................
The recommended first service is 10,000 KILOMETRES
The car has done 9,000 KILOMETRES
What part of 9000 kilometres being short of the 10,000 KILOMETRE service interval do you not understand?
If you are using PREMIUM in a car that is RECOMMENDED by the manufacturer to use 91 RON then you are wasting your money.
You could google it
You could read it
You could educate yourself.
Premium is NOT REQUIRED in a Twin Turbo STINGER and achieves NOTHING
........and anyone who thinks they have to get a service bang on 12 months at the stroke of midnight is an idiot..........

Wow dude, who pissed in your corn flakes this morning? No need to get in a huff about what someone else wrote.
Take it easy.
For the record, I don't agree with half of what you said, but I'm sure you'll find a way to insult me.
Every new car I've ever owned, I've never gone close to the recommended oil change interval when it comes to the first one.
I always do the first oil change early, and I've never had engine issues with any car I've had in the last 50 years.
I'd also like to hear your reasoning (with verified facts no less) to say, and I quote:

If you are using PREMIUM in a car that is RECOMMENDED by the manufacturer to use 91 RON then you are wasting your money.

 

[Ah GetFd]

Obviously a ridiculously stupid post by a person who has some problem with a driver of a newer car not servicing it 1000kms before it is due...............

Now that we are past that pesky little inconvenience let's focus on you not agreeing with half of what I say. I guess then you are only half wrong..........

You bang on about "No need to get in a huff about what someone else wrote" then get the huff yourself by putting in your own 3 cents worth. Ha ha.

You can google everything you ask of me. As I often say. don't ask me, to prove something. I have already provided you with well researched information. Google it yourself.........

and I think you answered it all anyway........been driving 50 years? Maybe time to give it a rest......

 

[BIG-D]

Thank goodness this forum has an ignore function what a contrite self obsessed individual you are?

I originally responded to your post like i did after reading a few of your smart arse replies to members here,but now i realise you are just someone i want to avoid at all costs.

I highly doubt you have anything worthwhile to contribute to these forums,because in your own words "You can google everything you ask of me. As I often say. don't ask me, to prove something. I have already provided you with well researched information. Google it yourself......".

 

[Stinger GT SS]

Thank goodness this forum has an ignore function what a contrite self obsessed individual you are?

I originally responded to your post like i did after reading a few of your smart arse replies to members here,but now i realise you are just someone i want to avoid at all costs.

I highly doubt you have anything worthwhile to contribute to these forums,because in your own words "You can google everything you ask of me. As I often say. don't ask me, to prove something. I have already provided you with well researched information. Google it yourself......".

He certainty has an attitude with everything he posts, comes across as he is the only one who’s right.

 

[Ah GetFd]

Thank goodness this forum has an ignore function what a contrite self obsessed individual you are?

I originally responded to your post like i did after reading a few of your smart arse replies to members here,but now i realise you are just someone i want to avoid at all costs.

I highly doubt you have anything worthwhile to contribute to these forums,because in your own words "You can google everything you ask of me. As I often say. don't ask me, to prove something. I have already provided you with well researched information. Google it yourself......".

You started off with;

You have done 9000km's and havn't changed your oil yet? - Pointless. It's not due until 10,000kms and

Sounds like spending money on your car is a low priority. - Wrong. I don;t spend money unless it is required.

And why do you post in Bold?

Lacking attention?

You are the sorta guy that drives the wrong way down a street just so that people will wave to you.

You're wrong. I pointed that out.

Now get over it.

 

[Ah GetFd]

He certainty has an attitude with everything he posts, comes across as he is the only one who’s right.

Now you're getting your two cents in

And even though you want to avoid me at all costs

You haven't.............

 

[Stinger GT SS]

Now you're getting your two cents in

And even though you want to avoid me at all costs

You haven't.............

Why would I want to avoid a dickhead like you, you come on here & run members down with condescending comment, you talk like you know everything, most people can Google facts just like you do.

You seem to have a big chip on your shoulder, your not on a Commodore forum now so there is no need to be a smartarse here.

 

[Volfy]

There is also no need to use 95 Premium fuel when 91 is absolutely normal and recommended by the manufacturer for the Stinger GT TT 3.3L

People automatically think Premium fuel is better. The experts will correct me, but Premium actually detonates LATER and is LESS volatile and the slower the fuel burns. This can prevent "knocking" caused by early detonation. It requires a higher performance engine and temperature to detonate to fully release the higher amount of energy in the premium fuel (higher potential energy in Premium does not mean more volatile), volatility is the unpredictability of the detonation of the fuel which premium prevents in higher performance engines, so if a car engine is designed around Premium fuel then buy premium otherwise in my opinion you are wasting your money on 15 cents a litre more and not seeing any benefit. It will not improve fuel economy nor will it help the environment......

¡Ay, caramba! This diatribe tells me you have no clue what you are talking about.

Premium doesn't resist detonation by being less volatile or burning slower. That is just a simpleton trying to rationalize with simple concepts that he can understand but have no basis in reality.

Even the most basic of concepts of octane ratings you get absolutely wrong. For you folks down under, Kia doesn't recommend 91, since your octane ratings at the pump are denoted in RON (Research Octane Number), same as in Europe. Here's the exact verbiage:

"For the optimal vehicle performance, we recommend you to use unleaded petrol with an octane rating of RON (Research Octane Number) 95 / AKI (Anti Knock Index) 91 or higher. You may use unleaded petrol with an octane rating of RON 91~94 / AKI 87~90 but it may result in slight performance reduction of the vehicle. (Do not use methanol blended fuels.)"

Source: https://www.kia.com/content/dam/kwcms/au/en/files/owners-manual/kia-stinger-owners-manual.pdf

Here in USA and Canada, our pump numbers are in AKI (Anti Knock Index), which is (RON+MON)/2.

FWIW, 91 RON is equivalent to AKI 87. 95 RON is equivalent to AKI 91. So for Australia, Kia's recommendation is for premium 95 RON gasoline, for optimum performance.

Now then, is premium gasoline absolutely necessary all the time? Of course not. Octane requirement for any engine is not a constant number. It varies depending on how the car is driven and under what (vehicular & ambient) conditions. WOT uphill in 105F Summer heat fully loaded with passengers and cargo, towing a heavy trailer near sea level has an octane requirement very different than, say, flat hwy cruising solo in Winter at steady 55mph in mile-high Denver. Kia doesn't know exactly how every driver of their cars will do, so their recommendation covers the worse case scenario. It is contingent upon the driver/owner to pump what is expected of the car for the next tank full.

I personally have no problem pumping regular grade, if I'm just commuting and taking it easy in cool weather. However, for track day or AutoX, especially in hot and humid Texas Summers, you bet I'll make sure the tank has nothing but the highest grade pump gas. Maybe with a few gallons of E85 added for good measure.

But, you - like all of us - are free to pump whatever you want into your own cars.

Just don't talk out of your behind on subject matter you barely have a rudimentary understanding.

 

[Ah GetFd]

Dear Voldemorte

This does not make one iota of difference to the performance of your vehicle

The fact remains that you are not achieving anything in a Stinger to pay more for premium petrol and......

research a little more about premium fuels

They do detonate later, they are less volatile and that's why it controls "pinging"

outside of that it is pointless sticking it into your Stinger.