[N72]

The AC and temperature in the South seems to be impacting my mpg negatively unless something is wrong with the battery. 90% of the time, I am driving the same route to and from work. I can tell when my car will be EV and when the engine will be on. I got the car in February, and over the first 2000 miles it was easy to know where I was on the route when EV would be on. When looking at the battery gauge, there were only two times in the first 2000 miles that the battery dropped to two bars. Over the past three weeks with temps approaching 90 and AC on, the battery gauge is dropping to two bars several times per trip. Before the hot weather, the battery seemed slow to discharge, but now it discharges much quicker. I am still getting close to 49mpg, but it is below the 56 I was getting before. There were several times I would get over 60mpg without trying, but I cannot get close to that now. Watching the battery gauge, it is a night and day difference how quickly the battery is discharging these days.

 

[yellowbalt]

I have around 12k KM mileage. Trip computer is always higher than actual. Right now I'm getting more than 800KM/full-tank. Trip computer says 960+. ECO all the time and using it for Uber

 

[farmerjack]

Current update for me: 12,000 miles, owned since Sept '24. I track all fuel ups via Fuelly and have been averaging a lifetime MPG of roughly 41-42 mpg at the pump. I do mostly highway commuting at 70mph, but when I am around town I will see figures closer to 45-50mpg.

Obvious changes in season affect the range and efficiency, now seeing warmer weather in Atlanta is helping my mpg more than the winter.

 

[Symphonic89]

It would make no sense for gas stations to give you more gas than you paid for. So clearly, Honda are the ones who are lying. The computer consistently estimates the gas mileage around 2 mpg more than actual. If it were simply inaccuracy, it wouldn't always overestimate by the same amount. It has to be deliberate. Like that time Iphones "accidentally" displayed a stronger signal strength than what they were actually getting.

I guess the question is, who is lying, Honda or the gas stations 🙃. Is it intentional or a bug. Might be another dieselgate.

 

[gong.yifang]

I like to share my experiences with my civic hybrid which I got last October. Because I used it for commuting for my work, I have already over 16k miles in just 8 months. What I can tell is that the fuel economy is very much related to the temperature. The first tank, I got over 55 mpg, the winter started, I got slightly below 45 mpg. As weather gets warmer, the mileage goes back to 55. My driving conditions are mostly on highway in New England. The speed is about 60-65 mph. Based on current civic's not so aerodynamic shape, it is not good for high speed.

 

[HondaEh]

fuel economy is very much related to the temperature.

As always in any ICE car (and EV, too) fuel economy depends on driving style (aggressive or relaxed), speed, terrain and environment temperature.
There is NO magic formula to squeeze more miles per gallon from a car. Of course Texans will get better fuel economy during summer than Canadians in January with the same car and same road, etc. conditions. Live with that or get a bicycle.

 

[or.eh]

It would make no sense for gas stations to give you more gas than you paid for.

You stop at a gas station and top off the fuel tank. Then you drive 50 miles for which you car consumes 1 gallon. Your car computer states that your consumption was 50mpg. You stop at a gas station and top off the fuel again. You put in 1 gallon you used, but gas station says you pumped in 1.04 gallons and charges you extra for 0.04 gallons it made up. You manually calculate the consumption 50 miless divided by 1.04 gallons and get 48mpg, while your car computer states 50mpg.

 

[HondaAvdW]

Got my Sport Touring Hybrid Hatchback in early October last year.
1. Noticed from the e-brochure the fuel consumption are different on Sedan vs Hatchback (worse).
2. In Canada (Toronto) we have a brutal cold prolonged winter. For sure in winter the mileage are about 25% to 30% worse.
3. 90% of the time I am driving in eco mode. Mixed highway and local driving about 40% highway and 60% local. Highway speed about 100Km/hr or 62 miles/hr. Toronto is mostly flat and not very hilly.
4. I had a full detail record on car consumption on every tank of filled up and fuel consumption. (screen grab of the Excel attached) I also average each season
(Fall vs Winter vs Spring). For American, I added the MPG on the last column.
5. Most of the time the Car fuel showing vs actual are about 0.35 litres/100 km worse.

 

[HondaEh]

2. In Canada (Toronto) we have a brutal cold prolonged winter. For sure in winter the mileage are about 25% to 30% worse.

Brutal? In Toronto? 2024?
Not bloody likely... Mild at the best. I had to wear my long puffy coat only ONCE when I went for a grocery shopping (on foot). All other times was short winter jacket...

 

[Hatch808]

Combined numbers after two fill ups for Hatch ST:

Total Miles: 718.6
Total Gas: 14.63
Total MPG per pump: 49.1
Total MPG per Computer: 50.8

This tank was almost all Eco mode with more city than highway. Summer is in full effect here in Hawaii so the AC is sure to be using more energy even in Eco.

 

[Handwaver]

I like to share my experiences with my civic hybrid which I got last October. Because I used it for commuting for my work, I have already over 16k miles in just 8 months. What I can tell is that the fuel economy is very much related to the temperature. The first tank, I got over 55 mpg, the winter started, I got slightly below 45 mpg. As weather gets warmer, the mileage goes back to 55. My driving conditions are mostly on highway in New England. The speed is about 60-65 mph. Based on current civic's not so aerodynamic shape, it is not good for high speed.

what grade fuel are you using?

 

[gong.yifang]

what grade fuel are you using?

87

 

[aspataro79]

Curious if anyone suggests running the vehicle in Eco vs Normal during the hot summer months (Phoenix area). I’ve noticed my mpg has taken a huge dip since running AC all the time but prefer the responsiveness of normal mode.

Will eco make that much of a difference?

 

[CJayCivicHybrid]

I say keep it in normal mode an just drive ,Eco mode will affect AC usage. I’m in Houston Tx running my ac full blast & still getting 49.2mpg.(sedan hybrid) hatchback gets a little bit different mpg.

 

[HaulinAuss]

You stop at a gas station and top off the fuel tank. Then you drive 50 miles for which you car consumes 1 gallon. Your car computer states that your consumption was 50mpg. You stop at a gas station and top off the fuel again. You put in 1 gallon you used, but gas station says you pumped in 1.04 gallons and charges you extra for 0.04 gallons it made up. You manually calculate the consumption 50 miless divided by 1.04 gallons and get 48mpg, while your car computer states 50mpg.

Do you really expect the nozzle to shut off at the exact level of the previous fill up? And you're only putting in one gallon? Not a reasonably accurate method to determine actual mpg. Too many variables. However, many have concluded that actual mpg may be roughly 2 mpg less than the readout on your car computer.

 

[aca2983]

My latest anecdata and summary:
Tank #11, 53.17mpg (best). It has been cool and comfortable, so almost no A/C usage. Driving has been my local normal "city" commute patterns. Tank #1, 52.94mpg (2nd best), had similar weather and conditions.
Tanks #7, 44.66mpg, and #8, 44.34mpg, (worst) were in the hottest part of this summer, with (2) 200lb+ fatties on board, their stuff, and driving 70mph+ on 4-5hr drives in the mountains of WV and Western PA with the A/C on constantly. (mpg calc, at fillup: miles travelled/gallons = mpg)
Summary: overall this car performs in line with what I've experienced with conventional ICE cars, with mpg varying predictably according to speed, ambient temperature, terrain, A/C use, and passenger loads. I leave it in Econ most of the time and there is always plenty of power on tap when I put my foot down. The other settings just generate more ICE noise for the most part.

 

[HondaEh]

I leave it in Econ most of the time

I do not think Econ has anything to do with the gas consumption on long drives; just different acceleration when you punch it. Most likely you will get the same gas consumption in Econ mode and if you baby it Normal mode.
Gimmick - same as 'simulated' gear changes while electro motor does all the driving...

 

[aca2983]

I do not think Econ has anything to do with the gas consumption on long drives; just different acceleration when you punch it. Most likely you will get the same gas consumption in Econ mode and if you baby it Normal mode.
Gimmick - same as 'simulated' gear changes while electro motor does all the driving...

Agree. A lot of people maintain that Econ made is "power sapping" or something. As I noted, most of the other settings just make more noise.

 

[pi.actual]

Agree. A lot of people maintain that Econ made is "power sapping" or something. As I noted, most of the other settings just make more noise.

Put it in ECON mode on a hot day and you'll find it degrades the aircon a noticeable amount. In my experience, in regards to throttle, it only effects the sensitivity. If you floor it you're still going to get full power.
After a year and 11k miles I'll admit I haven't touched the mode switch for the last 8 or 9 months.