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Kia Optima Real World MPG

139 messages,  Last post on Sep 16, 2009 at 6:48 AM

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What is this discussion about? Kia Optima, Fuel Efficiency (MPG), Sedan


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#41 of 139
Re: 23 mpg mostly around town... [csandste] by mickeyrom
Mar 19, 2007 (2:01 pm)
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Replying to: csandste (Mar 19, 2007 1:36 pm)

The Sonata's computer only shows a cumulative MPG.The 14 I got from an actual calculation.Miles divided by gallons.The 37 was on the computer,but as I said the computer was always within a mile of the actual mileage.I got the number by resetting the MPG calculator on the computer while the car was rolling down the highway.After a minute or so the actual mileage pops up.Mine was sometimes 37 and stayed there until I got off the road.Even fighting heavy construction traffic going past Gary Ind. on I80,the mileage stayed around 34 for the whole trip to Sandusky Ohio.Thats 400 miles or so.However,all of my posted MPG is strictly the manual figuring(calculator)not the computer.
#42 of 139
Re: Kia Optima 2007-- MPG, Real World Numbers [csandste] by perspicacity77
Mar 22, 2007 (4:42 pm)
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Replying to: csandste (Dec 29, 2006 7:52 pm)

I have a 2006.5 Kia Optima with 17,000 miles and I am currently averaging 26/37 mpg, I swapped out the stock plugs which actually extremely detune the car, I upgraded to the premium Denso Irridium Plugs IK16/5303(.004mm Core) which are available at autozone for $56.17 with tax by doing so I shaved 3+ seconds off my zero to sixty time and I can easily burn a 07' Camry V6, I burned 4 of them as a matter of fact and my gas milage improve also, unfortunately now I have a lot of wheel spin from a light and now all four of my tires are nearly bald despite regulary rotating them, I would definately recommend a stickier tire,I haven't had any problems with the seats and airbags, I think thats a early 2006.5 model problem. My only gripe is a delay in down shifiting which was fixed in the Sonata with a reflash but there isn't a reflash for the Optima as of yet. I can't wait for a K&N to be available for it and some performance struts not that it doesn't handle well as is.
#43 of 139
Re: Kia Optima 2007-- MPG, Real World Numbers [perspicacity77] by micro99
Mar 22, 2007 (5:28 pm)
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Replying to: perspicacity77 (Mar 22, 2007 4:42 pm)

Your suggestion that the stock plugs in the Optima serve to"exremely detune" the car is interesting and I`d really appreciate hearing a bit more detail. It is quite frankly difficult to believe that performance and fuel economy improved so dramatically but I`d like to hear more !
Your suggestion that you "burned" a number of 07 Camry V6`s is really difficult to fathom - you obviously know that the Camry V6 puts out something like 268 hp. I assume your Optoma is the 2.7 V6 - but wow, that would be something !!
#44 of 139
Re: Kia Optima 2007-- MPG, Real World Numbers [micro99] by perspicacity77
Mar 22, 2007 (9:53 pm)
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Replying to: micro99 (Mar 22, 2007 5:28 pm)

I actually have the 2.4 which I think has a better power to weight ratio and the stock oem plugs have a .75mm core which is about as thick of a core as you can possibly get, they do have an irridium core which is a plus but unfortunately they have alot of resistance, whereas the premium plugs have a .004mm core which is about as thick as a straight pin, and a far as the camry's 3.5L V6 goes, the power to weight ratio is the equivalent to a 2.4L with 190-200hp plus the Optima is already a lighter car to begin with. A 2.4 with 268hp would run circles around a 3.5 with 268hp IE: the old SRT4 Neons 230+hp stock and 280+hp with the upgrades and 0-60 times between 5.4 and 4.8 seconds, I would like to know how the 2.7 V6 does with the upgraded plugs, it might best the 2.4 but not by much. I think they used the larger core plugs for warranty and reduced engine stress reasons.
#45 of 139
Re: Kia Optima 2007-- MPG, Real World Numbers [perspicacity77] by mickeyrom
Mar 23, 2007 (4:29 am)
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Replying to: perspicacity77 (Mar 22, 2007 4:42 pm)

What made you change plugs?At 17,000K it was certainly not scheduled.Your post is so technicsl that it makes me think that you are a mechanical engineer.Are you?
#46 of 139
2004 Hyundai Sonata GLS -V6(170HP) by harrychezt
Mar 28, 2007 (8:26 pm)
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automatic. 40,000 miles.
Best MPG, 28+ hwy( EPA says 27). May have hit 29, but... may have went faster than need be, at times.
Worst? 19MPG, mainly city,when newer.
 
I avg mainly(mixed, 60hwy-40 % city)... 24-25MPG. If I have new tires, 25-26.
This is nearly as good as my in-laws 2007 Suzuki SX4,with 143HP, I-4.
They get 27-28MPG hwy.
25-26 city... avg 27.
Last few tanks were 25+ MPG, 28+ MPG, and around 24 MPG, in 40 degree weather.
Tires do need replaced soon, also.
I have read, IIRC, on MotorWeek, and here on Edmunds, 34MPG for the I-4 Optima, hwy, on their testing!
 
A lot depends on how one drives, also.
 
If you try to do 0-60 in 3 seconds after every stop, then of course, you get less MPG.
I know Many people drive like it's the Indy 500, or a drag race!
 
I did drive the Prius, and it is nice, but it handles no better than the Optima, IMHO. Better than my Sonata, yes, a little, just like the Optima handles a little better.
 
Neither is a sports car. Our Scion tC out handles either, very readily.
 
If you're looking for MPG.... go Prius, or even a normal gasloline engine(only) powered Civic or Corolla.
 
If you need a larger car, get the Optima!
The I-4 is not as "smooth" as my lower(170HP) powered V6, but close enough.
The V6 in the Optima made the car feel no faster than my Sonata, though.
 
Too bad there is not a car that does 0-60 in 8 seconds, the size of Optima, handles like a tC, and gets 40 hwy, 30 city!
take care/not offense
#47 of 139
36.1 MPG highway by mickeyrom
May 14, 2007 (7:47 pm)
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At last I got the good mileage I expected.On three fill ups on a recent trip,the MPGs were 36.1,29.9 and 33.9.
No complaints there,thats for sure.Now if my city economy approaches the EPA estimate of 24 .....I will be as happy as a clam. This was accomplished driving at legal speeds,included maybe 5% city driving,some construction zones as well as one 10 mile long traffic jam.
2006.5 EX 2.4,auto.
#48 of 139
26 Mixed by csandste
May 14, 2007 (9:22 pm)
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Still no better than my V-6 Maxx but hopefully it'll loosen up. Nice of Ifcar to name the Optima the best inexpensive family sedan (tied with Sonata).
#49 of 139
Re: 26 Mixed [csandste] by csandste
May 24, 2007 (7:18 pm)
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Replying to: csandste (May 14, 2007 9:22 pm)

Took it from St. Louis to Branson this week. Almost 800 miles with side trips. Four people plus luggage. Roughly 3000 miles on the odometer.
 
First fill-up. Bucking slight headwind, considerable strip travel behind 80 year olds. Only averaged a bit over 21 mpg. Not good at all.
 
Second fill-up. Noticed a LOT of shifting into third and fourth with the smallest grade. Decided to put it into manual mode to keep it in fifth as much as possible. No real lugging of the engine, could easily go up and down hills at 70 mpg. Got 34 mpg plus. Typical Hyundai stiff-enginitis, maybe it's finally breaking in.
 
Third fill-up. Some two lane roads but averaged a pretty good clip. No stop and go driving. Only averaged 23 mpg. Second tank must have been underfilled.
 
Other than bad mileage, the car drove well and had good room. Think I would have averaged considerably higher in my Malibu Maxx, but maybe it's still breaking in. I'd think I'd be averaging about 28 mpg mixed, maybe slightly better with two aboard. I think the Maxx would have beaten it by 3-4 mpg.
#50 of 139
Re: 26 Mixed [csandste] by mickeyrom
May 24, 2007 (7:32 pm)
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Replying to: csandste (May 24, 2007 7:18 pm)

You have a 2.4....right?

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