# 2014 Elantra **URL:** \ **Category:** Power/Fuel\ **Tags:** hyundai, elantra\ **Created:** [July 31, 2018, 9:58pm UTC](https://community.cartalk.com/t/2014-elantra/122055 "2018-07-31T21:58:55Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![shoerags](https://avatars.discourse-cdn.com/v4/letter/s/57b2e6/32.png) [@shoerags](https://community.cartalk.com/u/shoerags)\ **Post date:** [July 31, 2018, 9:58pm UTC](https://community.cartalk.com/t/2014-elantra/122055/1 "2018-07-31T21:58:55Z")
I have an issue with my car. After 3 years of buying it new, I now have a rough idle, and markedly decreased gas mileage issue. The same thing happened with my 2012 Elantra, but after 2 years. I’ve taken it to 2 Hyundai dealers, and each has said: “there’s nothing wrong with the car.” My non Hyundai mechanic says it’s most likely due to a too rich gas mixture. I tried a couple of tanks of high test gas, and 4 bottles of fuel injector additive, but so far, nothing has worked. Have other Elantra drivers had the same problems, ,and if so, what did you do to fix it? ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [July 31, 2018, 10:22pm UTC](https://community.cartalk.com/t/2014-elantra/122055/2 "2018-07-31T22:22:47Z")
How many miles are on your car’s odometer? Have you consistently maintained it in accordance with the mfr’s maintenance schedule, which has an either/or, whichever comes first proviso regarding BOTH elapsed time and odometer mileage? All too many car owners focus solely on odometer mileage, while ignoring the very vital elapsed time factor for maintenance. ---
**Author:** ![shoerags](https://avatars.discourse-cdn.com/v4/letter/s/57b2e6/32.png) [@shoerags](https://community.cartalk.com/u/shoerags)\ **Post date:** [August 1, 2018, 3:51pm UTC](https://community.cartalk.com/t/2014-elantra/122055/3 "2018-08-01T15:51:30Z")
![](https://global.discourse-cdn.com/cartalk/original/2X/6/602d295699c664ee41f5e74eb1e2b9d202636f1e.png) ![](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/45/30_1.png "VDCdriver") VDCdriver ``` July 31 ``` How many miles are on your car’s odometer? Have you consistently maintained it in accordance with the mfr’s maintenance schedule, which has an either/or, whichever comes first proviso regarding BOTH elapsed time and odometer mileage? All too many car owners focus solely on odometer mileage, while ignoring the very vital elapsed time factor for maintenance. ---
**Author:** ![COROLLAGUY1](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/corollaguy1/32/7575_2.png) [@COROLLAGUY1](https://community.cartalk.com/u/COROLLAGUY1)\ **Post date:** [August 1, 2018, 4:21pm UTC](https://community.cartalk.com/t/2014-elantra/122055/4 "2018-08-01T16:21:53Z")
Its a well know fact that Hyundai lied about the MPG rating on these. Read on > **[U.S. appeals court decertifies class action in Hyundai fuel economy...](https://www.reuters.com/article/us-hyundai-motor-lawsuit/u-s-appeals-court-decertifies-class-action-in-hyundai-fuel-economy-settlement-idUSKBN1FC2FD)** > > A U.S. appeals court on Tuesday overturned a lower court's decision to gran... ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [August 1, 2018, 8:35pm UTC](https://community.cartalk.com/t/2014-elantra/122055/5 "2018-08-01T20:35:23Z")
Thank you for repeating my questions. Can you provide us with a response to those questions? ---
**Author:** ![shoerags](https://avatars.discourse-cdn.com/v4/letter/s/57b2e6/32.png) [@shoerags](https://community.cartalk.com/u/shoerags)\ **Post date:** [August 2, 2018, 9:05pm UTC](https://community.cartalk.com/t/2014-elantra/122055/6 "2018-08-02T21:05:43Z")
![](https://global.discourse-cdn.com/cartalk/original/2X/6/602d295699c664ee41f5e74eb1e2b9d202636f1e.png) ![](https://global.discourse-cdn.com/cartalk/original/2X/6/61d7f0b7616565332ad3ac371c27fc83ebcb72f7.jpeg "COROLLAGUY1") COROLLAGUY1 ``` August 1 ``` Its a well know fact that Hyundai lied about the MPG rating on these. Read on ![](https://s3.reutersmedia.net/resources_v2/images/favicon/favicon.ico) ``` U.S. – 23 Jan 18 ``` ![](https://s2.reutersmedia.net/resources/r/?m=02&d=20180123&t=2&i=1224535827&w=1200&r=LYNXMPEE0M1HI) ### U.S. appeals court decertifies class action in Hyundai fuel economy… A U.S. appeals court on Tuesday overturned a lower court’s decision to grant class certification to car owners who settled with Hyundai Motors and its Kia affiliate over the fuel efficiency of its vehicles. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [August 2, 2018, 9:12pm UTC](https://community.cartalk.com/t/2014-elantra/122055/8 "2018-08-02T21:12:42Z")
Stop using email to reply because it is not working . Log on to the Car Talk community forum please. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [August 2, 2018, 9:13pm UTC](https://community.cartalk.com/t/2014-elantra/122055/9 "2018-08-02T21:13:37Z")
Okaaaay… 😒 ---
**Author:** ![shoerags](https://avatars.discourse-cdn.com/v4/letter/s/57b2e6/32.png) [@shoerags](https://community.cartalk.com/u/shoerags)\ **Post date:** [August 3, 2018, 12:03am UTC](https://community.cartalk.com/t/2014-elantra/122055/11 "2018-08-03T00:03:30Z")
There is 34,000 miles on the car, and it has been serviced every 7500 miles. ---
**Author:** ![shoerags](https://avatars.discourse-cdn.com/v4/letter/s/57b2e6/32.png) [@shoerags](https://community.cartalk.com/u/shoerags)\ **Post date:** [August 3, 2018, 12:04am UTC](https://community.cartalk.com/t/2014-elantra/122055/12 "2018-08-03T00:04:18Z")
see my reply. The problem happened almost overnight! ---
**Author:** ![sgtrock21](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/sgtrock21/32/246_2.png) [@sgtrock21](https://community.cartalk.com/u/sgtrock21)\ **Post date:** [August 3, 2018, 1:02am UTC](https://community.cartalk.com/t/2014-elantra/122055/13 "2018-08-03T01:02:31Z")
My 2010 Kia Forte and the 3 new vehicles I purchased prior to it came with EPA fuel efficiency ratings. Did Hyundai/Kia somehow falsify the EPA ratings? My Forte consistently betters EPA ratings. Can I get a settlement? lol ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [August 3, 2018, 12:20pm UTC](https://community.cartalk.com/t/2014-elantra/122055/14 "2018-08-03T12:20:50Z")
From afar, my best suggestion is to have an induction system cleaning performed. 🤔 ---
**Author:** ![shoerags](https://avatars.discourse-cdn.com/v4/letter/s/57b2e6/32.png) [@shoerags](https://community.cartalk.com/u/shoerags)\ **Post date:** [August 3, 2018, 9:29pm UTC](https://community.cartalk.com/t/2014-elantra/122055/15 "2018-08-03T21:29:27Z")
I’ve used 2 bottles of fuel injector cleaner in the gas tank, but no help. I’ve also tried high octane gas; no help.