Last post on Nov 04, 2013 at 5:25 AM
You are in the Hyundai Sonata
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Hyundai Sonata, Fuel Efficiency (MPG)
#820 of 955 Re: where is the city mpg [magrx]
Feb 09, 2012 (10:43 am)
I have a 2012 Hyundai Sonata Limited (non-turbo). I had a 2011 Sonata Limited and made the "mistake" of trading it in for a 2012 Kia Optima. Obviously I did not like the Optima, as I am right back to the Sonata.
Anyway.....I live in Chicago and we definitely have crappy weather, and deal with the "winter blend" of gas more months of the year than the "normal/summer" blend of gas. I have had the car for almost 2 weeks now. It came with a full tank of gas in it, and I finally filled up yesterday. I do about a 50/50 mix between "highway" (although it is not true open road highway driving, as it is Chicago, and it is more stop and go highway driving, but not as bad as stop and go in the city of course) and "city" driving. I calculated my MPG manually when I flled up yesterday, and I got 27MPG - and I never use cruise control.
When I had my 2011, it was in the summer, so the "non winter blend" gas and I got around an average of about 29MPG with the same driving style, travels, etc. that I have now. The winter blend will account for lower milage due to the additives that are put in the gas.
But, needless to say, I am thrilled with my Sonata and the gas mileage it delivers (not even using curise control as I said) and I am not a "slow/speed limit" driver either.
#821 of 955 still very pleased with my 2009 gls
Feb 18, 2012 (8:35 am)
I am almost up to 123,000 miles on my 2009 GLS 4 cyl. automatic. My lifetime average is is 35.09 mpg. The lifetime covers 121.5k miles. I missed the first fill-up amount and then two other fill-ups at some point.
I try to maximize my fuel efficiency and have a job that puts me on the road a lot and gives the opportunity to do so. I would say that my driving consists of a good 90-95+% highway/interstate driven at 60 mph with cruise control and easy hills. My worst tank was 30.4 and my best was 39.1.
Most of my driving consists of a rural highway ride to the interstate (eight miles at 45-55 mph), and then another 50+ miles to a bigger city where the last mile or two will be city traffic. I notice that the longer my highway stretches are, if I'm going 100+ miles out to a destination, then my mpg gets better. Conversely, the more city driving I have to do the worse it gets.
Speed can play heck with the mpg, too. While I mainly try to do 60 most of the time, there are plenty of times where I have to hoof it up to 75+ for the whole time and my tank mpg will get down to 32-33 or so.
Graphing the lifetime mpg shows a seasonal variation (thank you cold weather and winter mix). Best mpg is the warmer months with minimal AC use. I usually won't get over 36 mpg on a tank from october to april. I start hitting 36+ in may, but that's usually on the super highway heavy jaunts.
I have to say I am impressed. I am considering getting a new GLS at the end of the year. I expect to drive it the same way and am curious to see if it will do better. It should, given the six-speed transmission and GDI.
#822 of 955 Re: 2011 Sonata GLS AWEFUL MPG [tturbo]
Feb 18, 2012 (8:42 am)
We owned a Fit for about a year. The wife mainly drove it. I stuck to my Sonata. However, I did drive it enough for the first fill-up, trying to maximize mpg. I managed to get 43.1! For the year my wife drove it, she usually would get the high 20's. She mainly drove it for work, which is 3 miles round-trip.
You are correct. There is no comparison. The Fit is a light-weight thing. I think I could have made it a highway MPG monster, but the wife just couldn't stand it and traded it in for a 2011 Sonata Limited. She LOVES the Sonata Limited. I haven't been able to put it through some max mpg paces, though. I just keep piling the miles on my 2009 GLS.
Feb 18, 2012 (10:45 pm)
I don't think the GLS MPG is THAT bad. I own the 2011 Sonata GLS back from February of 2010. While I sit my butt in an hour and a half of traffic both ways of the commute (Wash. DC Beltway, ugh), I can still manager to get around 25-26mpg. That's what the computer reads, so judging above from someone saying that the computer is off by 2mpg, that's roughly 27-28. Granted, it depends on how you drive. Swapped out the Kumho tires after the front left CRACKED for some Firestone Firehawk Wide Oval AS and have gotten better mileage out of it (also better traction, dry and wet braking and Way less noise). The car has its fair share of problems, but I've never had a car that didn't have issues. Overall, 2 years later and 30k miles I'm still happy with the car.
#824 of 955 2012 Sonata GLS Actual MPG Experience
Feb 19, 2012 (10:47 am)
We have had new sonata for two months and ~2400 miles. City MPG is 22-24 with all in town stop & go. With freeway and limited stop & go it goes up to 24-26+. Well within the EPA city estimate.
The highway mileage with 2000 of the miles, is actually better than EPA. 65-70 will deliver 36-37.5 depending upon hills, wind load etc. At 70-80, when safe the mileage drops off almost tot he same % as the increase in speed. 33 MPG at 75-80 is the average so far. The car also responds favorably tot he fuel type. We use BP, Shell & costco in town. 87 octane in town and 89 on highway trips since the MPG "appears" to improve ~10% vs. the 3% cost increase. just had oil changed and dealer recommended staing with the 5W20 weight so with no oil consumption sofar we agreed.
Beautiful high value automobile for the money and a great road car for us.
#825 of 955 Re: 2012 Sonata GLS Actual MPG Experience [crankeee]
Feb 19, 2012 (3:47 pm)
Yea, I have been pretty fortunate with mileage as well. I did however run in to a huge issue that Hyundai made good on very well. My Check Engine light came on, and I noticed a slight tic from the motor. Like a lifter tic. I brought the vehicle to Hyundai, and they changed the oil, light was off yet once I started the vehicle, the tic remained. I brought it back the nect day and at first, one of the mechanics pointed out that fuel injectors tic. Knowing my vehicle, I explained that this tic was far beyond the injector tic.
Long story stort, the Oil Sensor which signals the oil pump to send oil was not working properly. Therefore, the motor was not getting sufficient oil. Turned out, I needed a new Shortblock. It was ordered from Korea. I n addition, they replaced the exhaust from the shortblock to just past the converter. It took a bit of time, but would have been extremely expensive. My guess, probably $6000,00 at the least. The oil they used to refill was a 50/50 synthetic blend. Best part of all, the vehicle was purchased as a used vehicle with 8000 miles. Therefore I had a 5 yr 50,000 mi warranty. At the time of the tic issue, the vehicle had 54,000 miles. Hyundai still picked up the entire tab. I was pleasantly surprised and earned more respect that ever. Many auto maker/dealers could have easily shunned me on that one. Hyundai didn't. A month later I took the car from Illinois to Florida and back. Smooth sailing all the way round trip. Going easy on the gas peddle, I still average about 26mpg city and if maintaining 65mph to 70mph, I can get 36 to 38mpg. Closer to 36mpg. This is a 2008 4 cyl with a trunk load of clothes, a PC, personal items, and, Oh yea, 2 cats in the backseat. The worse performance issue with the whole trip was the cats. Happy with Hyundai!!!
Feb 29, 2012 (7:20 am)
I just bought a 2012 Sonata SE after gas prices chased me out of my dearly loved Mercury Grand Marquis. With the Marquis, I always burned premium fuel, not for a mileage boost, but to keep the engine clean. Even though the Sonata supposedly runs well on regular gas, should I burn premium to keep the engine clean? Has anyone noticed an mpg boost with premium fuel? I drive 100 miles a day to and from work. 95% highway in uncongested traffic.
#827 of 955 Re: Premium fuel [longstreetlee]
Feb 29, 2012 (8:55 am)
suggestion go to the premium gas vs regular gas website. Using premium gas when regular is recommended will not benefit your car.
#828 of 955 Re: Premium fuel [longstreetlee]
Feb 29, 2012 (9:12 am)
We also bought a new 2012 Sonata GLS with the value and MPG being the two most critical factors in the decision. Our old Pontiac was great with 18 in town and 28-30 on the highway and agood car mechanically for 14 years.
The Sonata seems to get ~8-10% better mileage on the highway using midgrade NOT premium with added cost of #3% or so. The old Pontiac first clued us in to this phenomena. We use regular and bought the last two cars with that requirement in mind. The Sonata appears to get 22-24 in City and 33-37 highway at 80-65 MPH. Runs great on regular and also appears to maximize MPG with midgrade Shell, BP, Exxon and other major brands.
In the city we use Costco due to price break with some Shell & BP. BTW - all grades of major brands include cleaning solvents like Techron (Chevron).
#829 of 955 Re: Premium fuel [longstreetlee]
Feb 29, 2012 (5:54 pm)
If you read your owners manual, Hyundai recommends you use Top Tier gasoline. http://www.toptiergas.com/
The reason for Top Tier is because of the amount of detergents in the gas. The biggest problem is the 15% of ethanol that kills the mpg's and plays havoc on the engine components. Unfortunately I am stuck without any Top Tier gas stations in my area so I have to use fuel injector cleaner every so often.