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If you are driving at a steady speed, at or below the speed limit on a highway/expressway road trip, then you should be getting at least in the high 30's mpg range. If the best you can get is only 31 mpg while driving within those parameters, then you may indeed have gotten a lemon, so I would have a chat with the dealer and start checking up on the 'lemon laws' in your state. In my own Elantra experience, I have been getting around 38.5 actual mpg on expressway trips with the cruise set on 70 mph, while the car's trip computer usually shows about 1+ mpg more than I calculated. If I had driven at an average speed of 65 mph instead of 70, I have no doubt I would have gotten 40 mpg or more. What I find more questionable is the EPA estimated 29 mpg city and 33 mpg combined average of city and highway. In real-world driving tests conducted by Consumer Reports, they did get 39 mpg in their highway test, but they didn't come close to getting 29 mpg in stop-and-go city driving. They got a combined city/highway average of only 29 mpg instead of the EPA estimate of 33 combined mpg. So, your real-world, combined average fuel economy may be significantly less than those EPA estimates, especially if you do more driving in the city or other congested areas.Report it
I reported the fuel economy problem to Hyundai last month. Below is their reply: Dear Xxx Yyy: Thank you for contacting Hyundai Motor America. We appreciate your patience while we conducted research regarding the fuel economy provided by your 2011 Hyundai Elantra. To learn more about fuel economy and ways to decrease your fuel consumption, you can visit http://www.fueleconomy.gov. Although you have received information from a Hyundai technician, we recommend you schedule an appointment with the service department of an authorized Hyundai dealership to have your Elantra inspected and diagnosed, as they are the best trained and most qualified to service your Hyundai. This information has been documented in Case # nnnnnnn. Your Case # can be referenced if we can provide further assistance. Thank you for contacting Hyundai Motor America.Report it
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