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Hyundai Sonata Real World MPG

581 messages,  Last post on Nov 22, 2009 at 1:56 PM

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What is this discussion about? Hyundai Sonata, Fuel Efficiency (MPG)


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#569 of 581
Update MPG sonata se v6 by 8babies1dog
Oct 25, 2009 (4:55 am)
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2000 mile trip N.O. to K.C. Kan. mostly hiway, big city traffic encountered two wrecks stuck in stop and go traffic over 1 hour wasted. Going we had trunk and
back seat loaded down w/ grandchildrens stuff. Up and down hills from St. Louis
to K.C. Coming back same route but ran thru 9 hrs solid rain, hard to keep steady set on cruise. Tried to keep cruise set at 2000RPM 72 MPH when possible the
whole trip. Saw up to 32.5 on trip computer. Average calculated for trip 30.5, I
consider very good due to some of the above mentioned adverse driving conditions.
Normal driving around home, combined actual calculated 24.75 also good for
249 HP
 
Over all extremely good car, comfortable, good looking in and out, smooth quite
ride, after 11,000 miles absulutely no problems.
#570 of 581
V-6 Average MPG in town? by lightfootfl
Nov 07, 2009 (6:37 am)
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I am very interested in knowing the real world in town mileages.
I know they should be 19mpg but realistically over say 3 tanks or 1000 miles what are you getting with yours?
I am still not quite getting 19 with 20000mi on my 2006 LX. I am in the panhandle of FL (NW area) and use the A/C all the time, so I know that affects mine, what about yours.
Thanks, van
#571 of 581
Re: V-6 Average MPG in town? [lightfootfl] by 8babies1dog
Nov 07, 2009 (5:33 pm)
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Replying to: lightfootfl (Nov 07, 2009 6:37 am)

I have the new version of the 3.3L V6 249HP in a 2009 SE bought in late July 2009,
about 3 months old. My wife and I both drive very conservative, no jack-rabbit take
off's, start slowing ahead of time if possible buy letting off accelerator. Use cruise
when it is feasible, on open hiway w/ speed limit 70 cruise is set about 72MPH.
Luckily we don't have to do much inner city driving. We keep track of all fell up's and mileage after several tanks we hand calculate, and keep in the car service log.
 Have never calculated less than between 26 & 27MPG combined, when we do more
open road traveling it goes up over 30 calculated. On long Interstate trips of 500 +
miles it is even better, stop fuel up get back on Interstate and set cruise. As for as
the average on the trip computer, it is just that an average, but have seen under
good driving conditions over 36 in 55mph zone over 25 mile distance, under same
conditions at 70-72 mph have seen 34+ all w/ AC on this is south Loiusiana.
 
Hope this helps!
#572 of 581
Re: V-6 Average MPG in town? [8babies1dog] by lightfootfl
Nov 09, 2009 (7:00 am)
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Replying to: 8babies1dog (Nov 07, 2009 5:33 pm)

Thanks for your input. I too, am light on accelerations, and coasting, etc also keep my tire pressure at 33-34, and AC on always. Unfortunately I still haven't reached anywhere near a 30mpg figure even on highway w/cruise (70mph). My overall avg from beginning is 18.7mpg for 19,000miles. I would love to have that increased, but everything I try still hasn't done the trick. My city is Pensacola, and traffic here isn't as bad as some, still there are times that "try men's souls". At times on hwy I have over 125mi trip each way averaged in the mid 20's. Anyway, was just curious about others. Again, thanks for your input.
van
#573 of 581
Re: V-6 Average MPG in town? [lightfootfl] by lightfootfl
Nov 09, 2009 (9:24 am)
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Replying to: lightfootfl (Nov 09, 2009 7:00 am)

Ooops my mistake.. just checked again, and it is 19.7 instead of 18.7. Think I must have hit the wrong key. I should have checked earlier when I could have edited the figure.
 
van
#574 of 581
Re: V-6 Average MPG in town? [lightfootfl] by james1982
Nov 09, 2009 (3:19 pm)
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Replying to: lightfootfl (Nov 09, 2009 9:24 am)

lightfootfl:
 
I always average 33-34 MPG, without fail. I have the ’09 GLS I4 manual transmission with about 10k miles on it.
 
Here are some things that I do to help me squeeze out every MPG I can…
 
1.) Eliminate all excess weight in your car. My trunk is completely empty (except for the tire and jack). Inside the car I have my son’s car seat, and my umbrella. That’s it. There’s nothing in the glove box or center console.
 
2.) I check my tire pressure at every fill up and add air accordingly.
 
3.) I coast whenever I can. With a manual transmission, this is very easy for me. On the highway, I can coast at 55 MPH and as far as the engine’s concerned, I’m idling at a stop light. Coasting is a HUGE gas saver.
 
4.) I never gun the engine, or “jackrabbit” start. I also try to never come to a complete stop – if I see a red light ahead, I try to coast all the way to it in the hope that it will turn green before I have to completely stop.
 
5.) I always use cruise control on the highway.
 
6.) I never drive over 60 MPH on the highway. Anything over 60 and you’re just losing fuel efficiency. You said you drive 70 on the highway. Stop. Even if the speed limit is 70, that doesn’t mean you have to drive 70. No matter what the speed limit is on the highway, you will always find me in the right lane going 55-60. In addition to saving gas, I notice that the road completely opens up – I never have to hit my breaks, change lanes, or readjust my cruise control. It’s great. In fact, I have never driven my car faster that 60, and I don’t ever plan to.
 
There you go. Those are my 6 “secrets” to 33-34 MPG on every tank.
 
Everyone will have an opinion on #6. Some people will say it’s dangerous and causes traffic. Others will say that they would rather save 4 minutes on a trip and drive 70. I don’t care. It’s how I choose to drive, if you don’t like it, you can pass me. I am always careful to stay in the right lane.
 
One last thing, don’t go by your MPG calculator on your instrument panel – it’s not always accurate. I calculate my MPG manually at every fill up. This is the best way to do it.
 
I hope that helps.
#575 of 581
Re: V-6 Average MPG in town? [james1982] by backy
Nov 09, 2009 (4:24 pm)
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Replying to: james1982 (Nov 09, 2009 3:19 pm)

Driving under the speed limit (but above the minimum posted speed) is legal. Not sure I'd personally go 10-15 mph under the limit on a highway under normal conditions if there's any traffic at all, but it's legal.
 
But you (and others) should check your state laws re coasting downhill in neutral... in at least some states it is illegal. Also not a good idea for safety, IMO.
 
Also, I expect you probably do what I do and check behind you when coasting to a stop for a traffic light. That can be very aggravating for someone behind you, e.g. if they are trying to get to the left-turn lane before the turn arrow disappears.
#576 of 581
Re: V-6 Average MPG in town? [backy] by james1982
Nov 09, 2009 (5:13 pm)
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Replying to: backy (Nov 09, 2009 4:24 pm)

But you (and others) should check your state laws re coasting downhill in neutral... in at least some states it is illegal.
 
Yeah, it is illegal here in Virginia. I'm not sure how anyone could "catch me" in the act, but, you are right - it's illegal here and in many, many jurisdictions.
 
Also, I expect you probably do what I do and check behind you when coasting to a stop for a traffic light. That can be very aggravating for someone behind you, e.g. if they are trying to get to the left-turn lane before the turn arrow disappears.
 
I do. Though I may drive slow, I do try to be respectful of others and am always mindful of turnlanes and the like. For example, if someone is merging on the highway and I should either speedup/slow down to give them room, I always do.
 
Good MPG is useless if you're not a safe driver.
#577 of 581
Re: V-6 Average MPG in town? [james1982] by lightfootfl
Nov 11, 2009 (7:08 am)
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Replying to: james1982 (Nov 09, 2009 3:19 pm)

Thanks for your info. There is a lot of difference between 4cyl and 6cyl though. I do go along with a lot of what you say, however my coasting is only coming up to lights and I do try to keep the vehicle "empty" of misc weight tho, keep tires aired, etc. Overall we aren't much different, but I will still stick with a little higher speed than 60, when I am on the highway as I usually am going a pretty long distance. Obviously around town loops, bypasses, etc I don't count them, depending. Anyway, thanks again for your input.
 
van
#578 of 581
Re: V-6 Average MPG in town? [lightfootfl] by 8babies1dog
Nov 11, 2009 (8:53 am)
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Replying to: lightfootfl (Nov 11, 2009 7:08 am)

I think you did mention you have the new version 2009 Sonata I4? Even if it is not the new version you should " IN THEORY" get a minimum of at least as good or
a little better than the V6. The I4 is made by Hyundai just like the V6 so it will
get that kind of MPG on an average, some owners post that on their reviews as they do w/ the V6. BUT in some cases they also report the same findings as you do. Example 2 brothers bought a new Sonata GLS about the same time 1 got the
I4 the other a V6 and the fellow with the I4 stated his brother beat his MPH calculation by a significant amount every fill up, he also said they both drive in the
same area and conservatively. He received a number of replys that did complain of
the same problem, others gave suggestions on how they drove to achieve a much
better rating. What I had suggested is to go back to the dealer and have them
check to see what the problem is " there is a problem probably mechanically" I
would also be upset if I chose the I4 over the V6 for MPG reasons and that is what
happened. Go to the dealer or several Hyundai dealers or a mechanic or even as
for as the Sonata plant in Alabama, they advertise this vehicle to do certain things
they should stand behind it, it's mechanical and that should be considered a drive
trane problem. If they can't fix it I would consider the possibility of checking into the
Lemon Law description. Good luck with your problem. Please post your findings it
may help others with the same problem. Have a good day!!

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