Last post on Nov 29, 2013 at 3:12 PM
You are in the Hyundai Elantra
What is this discussion about?
Hyundai Elantra, Fuel Efficiency (MPG), Hatchback, Sedan
#124 of 774 Re: A Hyundai explanation regarding city FE [g2iowa]
Jan 14, 2012 (9:25 am)
Hyundai already has access to the start/stop technology for non-hybrid cars--the 2012 Rio has it available. Also I see the next Fusion will offer that feature. So maybe we'll start seeing it on more cars, including the Elantra, in the near future.
It would be interesting I think for Hyundai to offer a "high FE" version of the Elantra with the 1.6L GDI engine with auto stop/start--which is what the Rio has now. IMO 138 hp is plenty for a car of the Elantra's size and weight--it's the same or a little more than the Elantra has offered prior to the 2011 MY, and I think the 2011-12 Elantra is a little lighter than the previous two generations (mostly because the cast iron block Beta engine is gone).
Then they could also offer a sport version of the Elantra (maybe in the new coupe) with the new ~200 hp 1.6L turbo that's going into the Veloster, for those who want to go fast in their Elantras.
Jan 14, 2012 (5:27 pm)
I just drove about 60 miles (2x30) and I averaged 30.4.
I used cruise at 65.
There is no way this car can even sniff 40. It was a struggle to get 30.
It looks like for every 1 person able to get 40 there are 4 other that don't come close. I'd say there is a manufacturing issue or just false claims.
I will be probably be filing a complaint soon.
#126 of 774 Re: highway mpg = 30 [mikewallace1]
Jan 15, 2012 (10:14 am)
If this was under controlled conditions, there is probably something wrong with your car, and you should document your test in writing and talk with the dealer.
Can you tell us more about how you did the test, e.g.:
* How did you measure fuel economy?
* If you used the trip computer, when did you reset the Average readout?
* What was the terrain?
* What was weather like, esp. temperature and wind?
* Did you stay at a constant 65 for both legs of the trip, or were there stops or passing?
* What were tire pressures?
* Any other passengers and/or cargo?
#127 of 774 Re: highway mpg = 30 [backy]
Jan 15, 2012 (3:57 pm)
I used the computer since I was in the middle of a tank so it was probably even less than stated.
I started the trip computer after I had the cruise control set at 65. The stated mpg was strictly highway. I reset it in the same manner on the return trip.
The terrain was not flat. Slight grades throughout.
No wind, temps 35.
Constant 65. I had to get off the cruise just once on the return trip.
Not sure what the tire pressures are, but the car has less than 1000 miles and the tires all look fine.
2 adults and 1 child round trip. Half tank of fuel.
I made the same trip today with the same conditions and got 31.2 strictly on the highway. after this trip I had to fill up and averaged 24.5 mpg on the tank - taking miles driven / gallons pumped.
Disappointing to say the least. 22% under the highway rating.
#128 of 774 Re: highway mpg = 30 [mikewallace1]
Jan 15, 2012 (4:20 pm)
There does seem to be something wrong with your car... unless you were going uphill most of the time (but if you went both directions in the test, that should even out). My recommendation is to carefully document all the details of your test and "take it up the chain". The Elantra is capable of much higher FE under conditions like that, based on my own experience and other reports we've seen. Heck, even my wife's 2007 Sonata does better than 31 mpg at a steady 65 mph.
#129 of 774 Re: highway mpg = 30 [backy]
Jan 16, 2012 (2:04 pm)
The dealer service dept said 2 things.
Try using a brand name gas (I was filling up at a Giant grocery store).
My best gas mileage should start at 2500 miles or so.
I doubt I will see much improvement but I will have to wait since I just filled up yesterday.
Are the EPA ratings done with non ethanol gas - which is just about impossible to buy any more?
I love everything else about the car but I will pursue this if things don't get better. I could live with 27/36 but 50/50 driving and 24.5 - I don't think so.
#130 of 774 Re: highway mpg = 30 [mikewallace1]
Jan 16, 2012 (3:18 pm)
I put whatever 87 octane I want into my wife's 2007 Sonata (2.4L 4AT) and it will do better than 31 mpg at a steady 65 mph for a 60 mile trip in anything other than extreme winter conditions. You could try a few tankfuls of name-brand gas and see if it makes a difference, if for nothing else than to be able to tell the service dept "I did that and here's the results". I have heard some folks say they get slightly better fuel economy with 89 octane gas in a car designed for regular, so there may be something to "better the gas, better the FE".
I think there's merit to the comment about the FE improving as you put more miles on the car.
Do you ever drive with the instantaneous mpg readout on? You might try that (keep your eyes moving of course) and see if you can find out the sweet spots for the car. It's also instructive to see how bad FE is when starting out on a cold morning, when accelerating and using a heavy foot vs. light foot, and especially when stopped--when the readout says "0.0".
#131 of 774 Re: highway mpg = 30 [mikewallace1]
Jan 16, 2012 (6:14 pm)
Forget it. You never know for sure that, for example, a brand name gas station gets its "own" gas. With exception of simply rotgut gas, gas is gas except for non-ethanol vs ethanol gas.
Jan 17, 2012 (5:48 pm)
Well I had the chance to get a new Elantra at Enterprise this morning for my trip to Chicago. Weather conditions were far from ideal with light snow, high winds (mostly tail winds Iowa to Chicago), and temps in the low 20s.
Resent the trip meter for mpg and odo before I left. Tire pressure monitor was illuminated when I got the car and stayed lit the entire trip but the tires looked and felt fine. Gas tank was full at pick-up. Driving was 90% hwy and 10% city and I covered 194 miles getting here (near Evanston, IL). Car was a 2012 Elantra GLS with 23,398 on the clock and a 6-sp auto. Typical fleet car with no additional options. In the car was me (215lbs) and about 35lbs of luggage.
I drove between 55 and 75mph the entire trip and averaged about 65mph (almost exactly 3 hours). And the answer is: 37.5 mpg. I realize I didn't calculate manually, and can't because Enterprise filled the tank previously, but I burned a little over 1/3 of a tank according to the fuel gauge, so I feel 37mpg is pretty darn close. That included a couple WOT starts around the city here. RPMs were 2,300 at 75mph and 1,800 at 55mph. 6th is geared very high (low numerically) and 40mpg is very possible if I tried at all (and I didn't).
We'll see how the road trip home goes on Thursday.