Kia Stinger Gas Mileage

[Brian Keenan]

Hey everyone. Does anyone have any insight at all into what we're looking at in reference to fuel efficiency? I'm more curious about the 3.3TT than the 2.0T. I suppose we can guess it'll get a little better gas mileage than the Genesis G80. But no numbers have been published for the Stinger yet unless I've missed them.

 

[hej]

I'll take a swipe at some highway numbers. I think we can take a look at the G80 fuel economy as our starting point. Sleuthing around on South Korea's Genesis website indicates 9.8 km/l for AWD and 10.5 for RWD. This equates to 23mpg & 25mpg respectively. Shed about 600lbs* or so for the Stinger with the same drivetrain, and I recon you would be adding a couple mpg. Lets peg my guess at 25 & 28 mpg highway for the Stinger. With that said, virtually every car I ever see somehow manages to get about 22~25mpg for combined real world driving, regardless of how amazing or terrible the highway milage is.

* this number is being pulled out of my ass, but it seems reasonable and in line with other estimates I've seen.

 

[app_master]

I think this may be the Kia's "weakest" selling point.

We have different published measures for fuel consumption in Australia; So my guess for GT V6 is 8.5lts/100km combined, and 12.5 urban (city) and around 7 for extra urban (hwy?). That's about 23/33/40 mpg for you lot.

It is not a purchase factor for me and real world figures are typically way off. I wonder if premium fuel is required?

 

[Butterxbean]

It is not a purchase factor for me and real world figures are typically way off. I wonder if premium fuel is required?

The downloadable spec sheet from the official Kia site lists it as "Premium Recommended." I attached the file if anyone wants it.

 

[hej]

I wonder if premium fuel is required?

Pretty much every modern engine is going to be a high compression motor that demands premium fuel.

 

[Jenny Wang]

Pretty much every modern engine is going to be a high compression motor that demands premium fuel.

I guess as engines get smaller and smaller they'll be higher and higher compression. Right? The last time I heard anyone talk about using regular octane in a car with a high performance engine was I think the Cadillac Northstar. My brother had an STS.

We have different published measures for fuel consumption in Australia; So my guess for GT V6 is 8.5lts/100km combined, and 12.5 urban (city) and around 7 for extra urban (hwy?). That's about 23/33/40 mpg for you lot.

Boy, that would really be something for the V6. 23 city, 40 highway and 33 as the average. But I think that would be more like the 2.0T that I want. That would really be awesome if the twin turbo V6 offered such great fuel economy.

 

[Bamm1]

Sadly, in the US, using the updated 2017 EPA testing procedure, 23/40/33 is not happening for the 3.3T (nor the 2.0T for that matter).

Understanding that there are aerodynamic, rolling resistance, etc, etc differences between the two vehicles I am about to compare take this as a rough ballpark guess-timate.

The “loaded” 3.3 Stinger GT AWD is supposed to tip the scales at 3,968lbs. A very well equipped 2017 Hyundai G90 3.3T HTRAC weighs in at 4824lbs. The EPA states that for every 100lbs removed from a vehicle you can expect a 1-2% increase in fuel economy. So going from the G90 to the Stinger puts you between 18/26 (21 combined) to 20/28 (23 combined).

Kia’s “benchmark” the BMW 440i xDrive GC comes in at 21/31/25 (very impressive given its performance).
I am not sure Kia also benchmarked the BMW 430i xDrive GC for the 2.0T Stinger but that gets 23/33/26 for reference.

Just FYI:

• The low end of my estimate aligns with the turbo 3.0 V6 in the Cadillac CT6 AWD (18/26/21)
• The high end lines up with the supercharged 3.0 V6 in the Jaguar XE AWD (20/29/23)

 

[hej]

I guess as engines get smaller and smaller they'll be higher and higher compression. Right?

In the sense that everybody needs to keep getting more power from smaller engines for the sake of meeting fuel economy standards, sorta. There's definitely limits to how high they can go.

 

[Bamm1]

In the sense that everybody needs to keep getting more power from smaller engines for the sake of meeting fuel economy standards, sorta. There's definitely limits to how high they can go.

As the engines get smaller and smaller (in a quest to meet rising fuel economy standards) manufactures looked to forced induction to “bring the power back”. But high compression and forced induction do not mix. So when boost (forced induction) is added the compression ratio is lowered. But that impacts the reason you went lower displacement in the first place. Low load, low rpm and low compression (limited boost in part throttle situations) is not an efficient combination. To compensate for this manufactures have added things like direct injection as a way to combat the detonation that is associated with raising compression ratio on forced induction engines. The 2.0T is pretty ubiquitous across the board for most manufactures. Those engines have a compression ratio ranging from 9.5 to 11.0. That combination (compression + boost) gets you reliable with improved fuel economy in everyday driving (or at least the EPA tests ). But the more power you want the lower you have to go on compression ratio. Take the 2.0T Mercedes uses in some of its AMG models. It makes 375 hp but has a compression ratio of 8.6 (about a point lower than normal industry range for that displacement).

 

[Jenny Wang]

This is getting way too technical for me.

But as soon as somebody hears something about numbers, I wanna know!

 

[hej]

This is getting way too technical for me.

But as soon as somebody hears something about numbers, I wanna know!

The actual numbers aren't all that important, they're just a means to an end.
https://en.wikipedia.org/wiki/Compression_ratio

 

[Brian Keenan]

Thanks everyone. It sounds like the Stinger will be about average for fuel efficiency. That's fine with me. I'm not looking for any miracles. I guess this does leave the door open for an electric Stinger.

 

[Bamm1]

Some of the official 2018 numbers are starting to come out now. Here are some numbers for the same engine/drivetrain combination and for a competitor:

• 2018 Gensis G80 Sport 17/24/20
• 2018 Audi S5 Sportback 21/30/24

Looks like the few 100 pounds you save (vs. G90*) to drop down to the G80 Sport has zero impact on fuel economy. Hopefully the 800+ pounds you will save by going to the Stinger will have an impact. Especially considering competitors, like the S5 Sportback, are very efficient when their performance numbers are taken into consideration (Audi says 4.5 to 60 but I expect it to be be knocking on the high 3 sec door when its tested).


*2017 Genesis G90 3.3T HTRAC 17/24/20

 

[lostnspace]

I'd happily take anything close to those Audi EPA figures. It also depends on how spirited you drive lol. With more and more speed cameras appearing, my stop light racer days are nearing an end.

 

[ballistic]

Especially considering competitors, like the S5 Sportback, are very efficient when their performance numbers are taken into consideration (Audi says 4.5 to 60 but I expect it to be be knocking on the high 3 sec door when its tested).

not to change the subject but those sound like audi rs5 performance specs. is there still going to be an rs5? and if so then damn it's going to be fast.

 

[Bamm1]

not to change the subject but those sound like audi rs5 performance specs. is there still going to be an rs5? and if so then damn it's going to be fast.

There is. The S4 / S5 Sportback will be using the new 3.0T with 354 /369. The RS5 will use the 2.9-liter turbo V6 from the Porsche Panamera with a 450 hp rating. Audi is claiming 0-60 in 3.9 sec.

 

[lostnspace]

The S5 Sportback is my second pick for a car. It's been getting nothing but praise. 65k fully spec'd Prestige (that virtual cockpit is gorgeous). The RS5 Coupe and Sportback are also coming to the states, it's good see Audi be more aggressive with their offerings.

The only thing that will push more towards the Audi, will be if the Stinger just had an abysmal ride.

 

[Bamm1]

The S5 Sportback is my second pick for a car. It's been getting nothing but praise. 65k fully spec'd Prestige (that virtual cockpit is gorgeous). The RS5 Coupe and Sportback are also coming to the states, it's good see Audi be more aggressive with their offerings.

The only thing that will push more towards the Audi, will be if the Stinger just had an abysmal ride.

I have not seen any official pricing for the S5 Sportback to date. I believe a loaded S5 Coupe approaches the $68,000 mark. I don't know if the Sportback versions will command a price premium over the Coupe (or vice versa).

No prototype reviews have put the Stinger's ride at the bottom of the barrel. So fingers crossed. Plus that extra $20,000 is really hard to shallow.

 

[lostnspace]

Hell yea, $20K is half the price of the Stinger lol...you can almost be done paying for the car.

I like Biermann says about the Stinger:

"This is no high-performance car," Biermann told us. "You can drive it on the race track, of course, but you cannot drive it on the race track and push it like a high-performance car. The car is not developed for that." Instead, Biermann suggests that the Stinger is meant mainly for places like the German Autobahn, but it's also at home on a back road. "The magic of the Stinger is that it has this high-speed stability from the long wheelbase," said Biermann. "If you go around some tight corners on a tight, mountain road, you don't feel the Stinger being a big car. It's very nimble, very agile, and easy to control."

http://www.roadandtrack.com/new-cars/future-cars/news/a32316/the-kia-stinger-gt/

I saw this regarding the pricing for A5/S5 Sportback:

Audi’s A5 and sportier S5 have been the brand’s coupe and convertible offerings in the mid-size space, but for the new-generation version arriving for 2018, they’ll be joined for the first time by a four-door fastback, the Sportback. The company has just released pricing for the A5/S5 family, and the Sportback is the least expensive of the bunch, undercutting the two-door coupe by $200.

http://blog.caranddriver.com/new-sp...ive-member-of-the-2018-audi-a5-and-s5-family/

 

[ballistic]

i think audi is really messing with us with that 0-60 time of 3.9 for the rs5. i bet it'll be closer to 3.5 seconds. audi has always had really nice interiors and they've done an awesome job with the cockpit of their new cars. the price really puts it out of my league for now but i'll be really happy with the stinger gt.