Last post on Nov 04, 2013 at 5:25 AM
You are in the Hyundai Sonata
What is this discussion about?
Hyundai Sonata, Fuel Efficiency (MPG)
#796 of 955 Re: Reply: Sonata MPG [crankeee]
Jan 07, 2012 (1:18 pm)
" No clue yet about RPMS at highway speed. hoping for 2000 RPM at 70 to get the 35 EPA number. anyone out here have any experience with RPM at highway speed?"
I was unaware that the Hyundai GLS didn't have a tach. If that is indeed the case, I would suggest you get a ScanGAuge 2 and plug it into to the OBD2 port under the dash just in front of your knee.
Everything you ever wondered about your cars performance can be set to display. MPG's, Tach, battery charge, gallons used, on and on...it checks the fuel used 2wice every second, and the tach read out is dead on.
#797 of 955 Re: Reply: Sonata MPG [longo2]
Jan 07, 2012 (1:46 pm)
The GLS does have a tach.
#798 of 955 Re: Reply: Sonata MPG [longo2]
Jan 08, 2012 (10:16 am)
longo: what I meant was we had not driven the car on the highway yet. Just got back and posted message on MPG. Outstanding on the highway with 2000 RPM (it does have a tach) and 67 MPH it got just under 38 on 100 mile trip. 10% speed increase drops it to 35 that makes sense. Great car so far!
#799 of 955 where is the city mpg
Jan 11, 2012 (8:05 am)
I've had my hyundai sonata for a year now. it gets the expected gas mileage if you drive at 2000 rpm on the highway. however as hard as I try I cannot get the expected gas mileage in the city. my car has 15,000 miles on it now and I've taken several trips. I do my best to keep the rp m's under 2000 rpm without causing an accident but I cannot get the 25 miles per gallon in the city. if anyone has any ideas I would really like to know because this is lori my overall gas mileage. so far I like the car in the way it drives but with gas prices going up, I may have to switch to a vehicle like the toyota prius. has anyone found the secret to the city gas mileage I would really like to hear it.
#800 of 955 Re: where is the city mpg [cpeny]
Jan 11, 2012 (8:41 am)
We have anew 2012 Sonata GLS and are very impressed with the mileage so far. 22-26 in city with the extremes being all stop and go (22) up to 26 with streches including steady speed (26). My conclusion is that getting the car going is the worst MPG situation so if that is maximized then the MPG is poor. The highway at 67 MPH =2000RPM's and 37.6 on last 100 mile trip. That is outstanding in my world. At 75 it drops to 35-36 best.
The hybrids get great city MPG with the battery and the Elantra is rated at 29 city. we wanted a more roomy vehicle than a Prius or Elantra and drive a mix of city/highway so it works for us.
#801 of 955 Re: where is the city mpg [cpeny]
Jan 11, 2012 (8:55 am)
Just drive the car normally and don't pay attention to RPM's and you will get better MPG. RPM's have very little to do with fuel economy.
#802 of 955 Reply: where is the city mpg [samiam_68]
Jan 12, 2012 (6:25 am)
Curious comment. I try to purchase a car model that has a lower final drive ratio that results in fewer RPM's at highway speed. The result is lower fuel use in my experience. Sport models use a higher final drive ratio (read Corvettes, Porsche, HP Mustangs and others), to get fastest speeds in shortest times at th expense of fuel mileage. The newer 6 and 8 speed transmissions allow for higher final drive without sacrificing overall performance.
#803 of 955 Re: Reply: Sonata MPG [crankeee]
Jan 12, 2012 (9:07 am)
I think you will find that the trip computer is off by 2mpg (shows 38 -2mpg= 36) Several other Sonata blogs confirm this. I also found that the speedometer is off by 2 miles (verified by using my GPS)speedometer shows 65 actual 63
The only true way to verify mpg is by dividing gallons purchased into mileage
#804 of 955 Re: Reply: Sonata MPG [hjc1]
Jan 12, 2012 (10:07 am)
I agree with your last comment. I also did the manual calc and came up 2 MPG less. Strange that Hyundai would elect a program that misstated the actual results. Real test of the car will be the long term durability and how well Hyundai stands behind their stated warranty without a lot of nitpicking and fine print rulings. The internet and forums like this will be a true sounding board for both issues.
#805 of 955 Re: Reply: Sonata MPG [crankeee]
Jan 22, 2012 (12:31 pm)
I am disgusted with MPG performance. I thought I would average out around 30 mpg. Check this out and (anyone) pls comment.
I've had the 2011 since May 2011. Over 14,456 miles used 530 gallons, average 27.5 mpg. While not great what concerns me is the variability. I've gotten as much as 34, as little as 19.82. Pure highway I can get it up there. City esp. up hills the mpg drops like a rock. But get this: Hyundai did a recal service on June 29 involving the transmission or some such thing, car popping out of drive while you're driving or something. Before the service I was averaging 29.66. After 26.93. That's my real concern, that Hyundai service did something.
Anyone know anything?