Recent Topics
AME 37330 Hub Cleaner for Impact Wrench
by The Critic - 11/18/19 01:54 AM
Plastic bag vs Car
by The Critic - 11/18/19 01:50 AM
Fram XG7317 20k miles cut open
by dbeau - 11/17/19 09:46 PM
2021 Ford Mach-E Electric SUV
by KeithS_NW_Ohio - 11/17/19 09:05 PM
Walker mower Oil
by Joey737 - 11/17/19 09:03 PM
Rough service tough light bulb 1¢ at Home Depot
by JLawrence08648 - 11/17/19 08:40 PM
2015 F150 5.0 8592 miles
by Buzzinhalfdozen - 11/17/19 08:36 PM
MOPAR MO-285 FACTORY OIL FILTER CUT OPEN
by 53' Stude - 11/17/19 07:43 PM
Best Garage Door Seals
by Gebo - 11/17/19 07:18 PM
Bar oil as fogging oil
by WA1DH - 11/17/19 06:47 PM
Fram PH2 ExtraGuard Cut Open
by A310 - 11/17/19 06:38 PM
C&P Pentius UFXL PH16-equiv.
by 92saturnsl2 - 11/17/19 06:18 PM
Fleetguard WF2074 Coolant Filter Cut Open
by Pyrotechnic - 11/17/19 05:24 PM
Cuts on tire sidewall
by mclasser - 11/17/19 03:19 PM
Hyundai Theta II Engine in Newer Years
by smc733 - 11/17/19 02:41 PM
Walmart deals
by Deere John - 11/17/19 02:33 PM
Grumpy Kid
by wings&wheels - 11/17/19 01:57 PM
h9/95R FLA Batteries
by TXCarGeek - 11/17/19 01:40 PM
Preventative parking brake service
by Donald - 11/17/19 01:26 PM
Newest Members
JimBobSeeker, Joey737, bdavis218, XTR74, 2009Caraman
69899 Registered Users
Who's Online Now
27 registered members (carlprop, ctechbob, cjolson140, BrandonT, aleneros, 2 invisible), 788 guests, and 18 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics297,569
Posts5,118,190
Members69,899
Most Online3,589
Nov 2nd, 2019
Donate to BITOG
Print Thread
Hop To
Page 1 of 2 1 2
Detailed MPG Comparison - 2016 Elantra vs 2013 Civic #5176222 07/31/19 09:46 PM
Joined: Jun 2014
Posts: 1,328
T
tony1679 Offline OP
OP Offline
T
Joined: Jun 2014
Posts: 1,328
We recently took two identical trips to visit her side of the family, one in each car (one trip unexpectedly). OKC-ish to Springfield, IL and back. Obviously it's 100% impossible to get perfect scientific conditions, but both times were as identical as can be. Same weight (our cargo) in the cars, same calm-ish winds, nearly the same temperatures, etc. I used cruise control in both vehicles both ways set to the speed limit (I only took over on the extra large hills in MO, such as the Piney Rivers on 44). The speed limit for 95% of Oklahoma is 75, 95% of the rest is 70. I stopped at the exact same gas stations along the way for both trips. I used A/C for the entire trip both times. I hand calculated the mpgs using the tripometer and gallons used (filling on the slowest 'click' setting, stopping when the pump clicks off on it's own, no squeezing). I feel this is as good as it gets.

I didn't record (because it's irrelevant) what the cars 'said' the mpgs were, however I remember the Elantra overcompensated 1-2 full mpgs, and the Civic was either on the money or overcompensated by a ~1/2mpg.

For both vehicles, on the way there I had the ECO/ECON modes disabled. For the return trip I enabled these. This way I could directly compare both vehicles in both modes side by side. The results really surprised me.

For the record:
The 2016 Elantra 1.8L 6-speed auto is EPA rated 28/37 (31 average).
The 2013 Civic 1.8L 5-speed auto is EPA rated 28/39 (32 average).

My stop in-between was in St. Robert MO (farthest East you can go before paying IL gas prices... mad). So we'll call home (closest gas station) A, St. Robert B, and Springfield C.
The mileage from A<->B is 385.5 miles
The mileage from B<->C is 241.9 miles

The Elantra's numbers:
A->B - 9.629 gallons - 40.04mpg (NON-ECO)
B->C - 5.602 gallons - 43.18mpg (NON-ECO)
C->B - 6.655 gallons - 36.35mpg (ECO)
B->A - 9.829 gallons - 39.22mpg (ECO)

The Civic's numbers:
A->B - 9.835 gallons - 39.20mpg (NON-ECON)
B->C - 5.931 gallons - 40.79mpg (NON-ECON)
C->B - 6.810 gallons - 35.52mpg (ECON)
B->A - 10.237 gallons - 37.66mpg (***NON-ECON***)

***After knowing the results from the Elantra's ECO mode, and after the first leg of the Civic's ECON mode, I decided it wasn't worth it for the data. It would clearly be worse.

Regardless, I learned a few things. One, clearly the ECO/ECON modes are terrible for highway driving. Two, the EPA obviously played favorites with Honda. Three, I now know Hondas are overrated (literally) and I love my underrated Elantra even more. But I'll give credit where it's due, Honda's mpg calculator is pretty legit, at least for this model and year.

Hopefully this wasn't too much of a novel and was enjoyable smile. I just felt this is data that someone would find interesting and/or could utilize, and may not be able to replicate themselves. It was definitely eye-opening for me.

Screenshot_20190731-214957_Chrome.jpgScreenshot_20190731-215140_Chrome.jpg
Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: tony1679] #5176277 08/01/19 12:08 AM
Joined: Aug 2004
Posts: 2,505
D
double vanos Offline
Offline
D
Joined: Aug 2004
Posts: 2,505
Interesting read! I’ve heard elsewhere that eco/Econ mode really isn’t something to brag about.


Sabine Schmitz is the Queen of the 'Ring; Svetlana Kapanina is the Queen of the SKIES...
Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: tony1679] #5176278 08/01/19 12:11 AM
Joined: Mar 2016
Posts: 2,424
C
CR94 Offline
Offline
C
Joined: Mar 2016
Posts: 2,424
Interesting. What exactly do ECO or ECON mode do on those vehicles?

I'll guess you had a little breeze from the west or southwest.


2011 Toyota Prius now at 106K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K
Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: CR94] #5176306 08/01/19 03:03 AM
Joined: Jun 2014
Posts: 1,328
T
tony1679 Offline OP
OP Offline
T
Joined: Jun 2014
Posts: 1,328
Originally Posted by CR94
What exactly do ECO or ECON mode do on those vehicles?
You tell me and we'll both know. Honda doesn't tell you much, Hyundai doesn't tell you anything. I'm under the assumption both cars change shift points, affect A/C compressor operation...idk what else. But it's supposed to INCREASE fuel economy. Ironic. Knowing this, I just laugh in my head at several people I used to know who would leave that button on 24/7 "to help me get better gas mileage." Both cars will not be using it going forward.

Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: tony1679] #5176307 08/01/19 03:22 AM
Joined: May 2005
Posts: 11,894
C
Char Baby Offline
Offline
C
Joined: May 2005
Posts: 11,894
My daughter's 2015 Civic LX w/CVT is quite comparable in MPG compared to the EPA rating(YMMV). There is a difference in MPG with the CVT.

And this Civic's MPG calculator(in dash) has been right on(within a couple of 1/10s) compared to any other car we've experienced. All of our vehicles that we've owned since 2000-01 MPG calculator has been optimistic by at least 2-3 MPG.

In my opinion, anyone that only used the vehicles MPG calculator for their fuel economy is only fooling themselves especially if they've never done a hard reading. Who knows, you may actually get better if you calculate it on your own...I've seen this too!

And my daughter would also agree that using the ECON Mode on the highway nets worst fuel economy so therefore, she doesn't use ECON Mode on the hiwy but does in fact use it otherwise during her daily commute.

My BIL had a 2011 & 13 Elantra with the 1.8L automatic and he DID NOT experience the MPG that you were getting. In fact, he got a Annual Check from Hyundai from some class action lawsuit due to Hyundai overstating their EPA fuel economy figures in which Hyundai must have fixed by 2016 with some reprogramming. He did love the Elantras and I can attest to that as well. Nice cars!

My Niece currently has the previous generation Elantra('08/'09) she loves it to this day. And my other niece(her sister) has an '05 Civic with lots of miles and continues to love it as well. My nephew(their brother) has an '01 Civic and loves it too. So, it seems as though, we all love our cars! laugh

Last edited by Char Baby; 08/01/19 03:22 AM.

"Retired"
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic 1.8 LX
Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: tony1679] #5176335 08/01/19 05:29 AM
Joined: Jun 2017
Posts: 1,005
J
JustN89 Offline
Offline
J
Joined: Jun 2017
Posts: 1,005
The only thing I can definitively say that ECO mode does in my Elantra is change shift points. It will stay at lower RPMs. As far as everything else, I couldn't tell you.

Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: tony1679] #5176398 08/01/19 07:05 AM
Joined: May 2012
Posts: 472
F
faramir9 Offline
Offline
F
Joined: May 2012
Posts: 472
Good thorough report. It's amazing how much difference direction of travel can make. West to east is almost always better fuel economy, plus it takes a lot less time to fly across the ocean. Trade winds and all that. Maybe next time take this trip with the cruise control set to 65 mph; see how much difference 5-10 mph makes.


2005 Corolla LE, 1.8L
Valvoline Daily Protection 5w-20
Continental TrueContact 195/65R15


Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: tony1679] #5176401 08/01/19 07:11 AM
Joined: Apr 2012
Posts: 11,431
W
wemay Offline
Offline
W
Joined: Apr 2012
Posts: 11,431
Thanks for your efforts OP. Nice report.

I wonder how much difference the newly introduced CVT will make on the 2020 Elantras. Civics have now used CVT for a few years.


2018 KIA Sportage LX AWD
MSS 5W30, PL14459

2013 Hyundai Santa Fe Sport 2.0T
M1AP 5W30, OEM
Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: tony1679] #5176473 08/01/19 09:01 AM
Joined: Dec 2006
Posts: 9,055
K
KrisZ Offline
Offline
K
Joined: Dec 2006
Posts: 9,055
Most ECO models alter shift points and alter throttle opening, meaning the throttle plate will open less with the same pedal input when accelerating. It can make a difference in city or stop and go traffic for heavy footed drivers.

On long trips it can actually hinder mpg, especially on hilly terrain and when using cruise control because the downshifts are more delayed and the programming tries to keep the tranny in the tallest gear possible.
So what ends up happening going up an incline, is the car will slow down a lot more than normal before downshift is commended, and then it has to accelerate much harder up a hill to the set CC speed. As anyone can imagine, accelerating up a hill wastes a lot of fuel.

The ECO mode in my grand caravan is really bad in this regard.

Last edited by KrisZ; 08/01/19 09:02 AM.

2015 Grand Caravan 3.6L - 31k miles.
2006 Mazda 3 2.0L - 171k miles
Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: KrisZ] #5176607 08/01/19 11:51 AM
Joined: Sep 2002
Posts: 3,763
Propflux01 Offline
Offline
Joined: Sep 2002
Posts: 3,763
Originally Posted by KrisZ
Most ECO models alter shift points and alter throttle opening, meaning the throttle plate will open less with the same pedal input when accelerating. It can make a difference in city or stop and go traffic for heavy footed drivers.

On long trips it can actually hinder mpg, especially on hilly terrain and when using cruise control because the downshifts are more delayed and the programming tries to keep the tranny in the tallest gear possible.
So what ends up happening going up an incline, is the car will slow down a lot more than normal before downshift is commended, and then it has to accelerate much harder up a hill to the set CC speed. As anyone can imagine, accelerating up a hill wastes a lot of fuel.

The ECO mode in my grand caravan is really bad in this regard.


This pretty much sums it up. I know when my 2013 Elantra (RIP) boasted the eco mode as retarding the timing and achievement of up to 7% better mileage. In my case I never use it. I always have gotten better mileage with it off, city or highway.


2014 Hyundai Elantra
2014 Hyundai Elantra GT

A 55 Gallon Drum And A Shovel Can Solve A lot of Life's Little "Problems"
Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: tony1679] #5176741 08/01/19 02:30 PM
Joined: Apr 2015
Posts: 240
C
czbrian Offline
Offline
C
Joined: Apr 2015
Posts: 240
Originally Posted by tony1679
Regardless, I learned a few things. One, clearly the ECO/ECON modes are terrible for highway driving. Two, the EPA obviously played favorites with Honda. Three, I now know Hondas are overrated (literally) and I love my underrated Elantra even more. But I'll give credit where it's due, Honda's mpg calculator is pretty legit, at least for this model and year.


I don't know if you should really claim Honda mpg is overrated and that the EPA is playing favorites. Fuelly.com shows the average mpg of the 2016 Hyundai Elantra 1.8L at 29.33 mpg so 1-2 mpg within the combined rating of the EPA. Fuelly shows the average mpg of the 2013 Honda Civic with the 1.8L at 31.42 mpg so less than 1 mpg from the EPA combined rating.


2019 Honda Pilot
1998 Chevrolet C1500
1995 Chevrolet C1500
2018 Mitsubishi Outlander PHEV
Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: tony1679] #5176877 08/01/19 06:11 PM
Joined: Mar 2004
Posts: 503
P
pezzy669 Offline
Offline
P
Joined: Mar 2004
Posts: 503
My parents have a 2017 or 2018 Pilot with the eco mode, I have driven it on longer trips (state roads with 60-65 MPH) and used Eco mode. It definitely neuters the throttle and shift points, the only time that was an issue was on passing maneuvers (1 lane each direction) where it would just refuse to downshift and if you dipped into the throttle enough then it would garner a 2-3 gear downshift giving way more acceleration.

Mom ended up driving us to dinner and I forgot to take it off Eco. My parents did a number of Houston to northern Minnesota road trips back and forth and did a similar test to yours. She said she did not see any difference between Eco vs non-Eco so she just leaves it off all the time now.

I will say the Eco mode made the drive awful to say the least, it was a complete slug off of the line.


2012 Volkswagen Jetta Sportwagen TDI - 69k - Castrol Edge Professional LL03 5W30
2011 Volkswagen Jetta Sportwagen TDI - 49k - Castrol Edge Professional LL03 5W30
Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: tony1679] #5176887 08/01/19 06:29 PM
Joined: Mar 2004
Posts: 503
P
pezzy669 Offline
Offline
P
Joined: Mar 2004
Posts: 503
My parents have a 2017 or 2018 Pilot with the eco mode, I have driven it on longer trips (state roads with 60-65 MPH) and used Eco mode. It definitely neuters the throttle and shift points, the only time that was an issue was on passing maneuvers (1 lane each direction) where it would just refuse to downshift and if you dipped into the throttle enough then it would garner a 2-3 gear downshift giving way more acceleration.

Mom ended up driving us to dinner and I forgot to take it off Eco. My parents did a number of Houston to northern Minnesota road trips back and forth and did a similar test to yours. She said she did not see any difference between Eco vs non-Eco so she just leaves it off all the time now.

I will say the Eco mode made the drive awful to say the least, it was a complete slug off of the line.


2012 Volkswagen Jetta Sportwagen TDI - 69k - Castrol Edge Professional LL03 5W30
2011 Volkswagen Jetta Sportwagen TDI - 49k - Castrol Edge Professional LL03 5W30
Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: tony1679] #5177303 08/02/19 07:42 AM
Joined: Apr 2008
Posts: 3,537
panthermike Offline
Offline
Joined: Apr 2008
Posts: 3,537
Interesting results, but makes sense based on some of the above comments. I had a '12 Civic that I averaged 37ish mpg in over 44K miles, very impressed with that car. Always disliked using the econ mode for sure.


'17 Armada Platinum; ST Syn 5w20, 50K
'10 F150 5.4; 106K; ST 5w30
'70 F100; Valvoline 15w40/LG
Re: Detailed MPG Comparison - 2016 Elantra vs 2013 Civic [Re: tony1679] #5177809 08/02/19 07:43 PM
Joined: Dec 2006
Posts: 20,581
A
aquariuscsm Offline
Offline
A
Joined: Dec 2006
Posts: 20,581
If you follow Marco's posts,I think he gets in the 40+ mpg range in his Civic.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Advanced Durability 10W30

Page 1 of 2 1 2
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™