What kind of MPG are y'all getting with your 10th Gen?

GermanCivic

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How do you drive a gas tank empty? Until the car stalls or until it says 0 miles left?
I haven't drive it completely emtpy yet. What I meant was that those measurements were done on real data and not just the mpg value the head unit said, which isn't 100% correct sometimes.

Nonetheless I drive it to 0 miles left most of the time, but then I'm still only able to fill 40 liters in (11.35 gallon) even though I've read the gas tank is able to take 46 liters (12.15 gallons).

Once I drove 37 miles (60 kilometers) after the car said 0 miles left and it still didn't stall. :D
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Feddy_Ace

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I haven't drive it completely emtpy yet. What I meant was that those measurements were done on real data and not just the mpg value the head unit said, which isn't 100% correct sometimes.

Nonetheless I drive it to 0 miles left most of the time, but then I'm still only able to fill 40 liters in (11.35 gallon) even though I've read the gas tank is able to take 46 liters (12.15 gallons).

Once I drove 37 miles (60 kilometers) after the car said 0 miles left and it still didn't stall. :D
Man, that’s needlessly playing with fire. Running the car down that low on fuel is not good and running out of fuel can lead to potentially catastrophic engine failure.
 

GermanCivic

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Man, that’s needlessly playing with fire. Running the car down that low on fuel is not good and running out of fuel can lead to potentially catastrophic engine failure.
How do you think that gonna happen? I think the worst thing that's gonna happen would be damage to the fuel pump. I've done that with other cars and motorcycles and there was never any problem with driving it empty.

But I thinks it's dangerous if you do that to a Diesel engine, that can do some serious damage, if not engine failure.
 
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Gruber

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How do you think that gonna happen? I think the worst thing that's gonna happen would be damage to the fuel pump. I've done that with other cars and motorcycles and there was never any problem with driving it empty.

But I thinks it's dangerous if you do that to a Diesel engine, that can do some serious damage, if not engine failure.

Regarding differences between gas mileage methods:

I asked, because the experimental way of calculating "one tank" fuel consumption requires a reference point. I was wondering how accurate the zero fuel point could be. I wouldn't trust it. Usually it's the "full tank." I don't believe this point can be trusted in general either. Full tank today is just not necessarily the same as full tank next week. Completely dry tank would be an accurate reference point, but I don't want to run out of gas. In fact I don't believe there is any reference point available, that would guarantee that the experimental "one tank" data be any more accurate than the on board computer. It may happen to be accurate and may even be accurate in most cases, but there is no guarantee how much off it could sometimes be because of random factors.

The best thing about experimental is that it becomes more and more accurate over multiple tanks when calculated cumulatively (not for each tank and averaged). So experimental data over thousands of miles, if done correctly, are of course the most accurate.


Regarding running out of gas:

I avoid running the fuel below zero, and I try to drive quite passively when almost empty. But as this guy says below, it's not like you will break something every time you run out of fuel. Only if you are unlucky...:D :banghead: The civic manual warns against it, but it's probably a pretty generic warning as in other cars.

"NOTICE
You should refuel when the reading approaches E.
Running out of fuel can cause the engine to misfire,
damaging the catalytic converter."

 

NazTehRpR

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Currently at 27.6 mpg. But I’ve been driving in “S” mode since I bought the car in September. Much more fun than regular with Eco mode. Especially with the paddle-shifters.
 


NotSerious

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Currently at 27.6 mpg. But I’ve been driving in “S” mode since I bought the car in September. Much more fun than regular with Eco mode. Especially with the paddle-shifters.
I believe "S" mode will not only give you worse gas mileage, but will cause "Maintenance Minder" to count down to your next service more quickly and there will be more strain on your CVT because the higher revs gives you more power. I suspect that the CVT will likely not last as long in "S" as it would in "D".

I only use "S" on occasion.
 

NazTehRpR

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I believe "S" mode will not only give you worse gas mileage, but will cause "Maintenance Minder" to count down to your next service more quickly and there will be more strain on your CVT because the higher revs gives you more power. I suspect that the CVT will likely not last as long in "S" as it would in "D".

I only use "S" on occasion.
I've heard that before. And witnessed the change in fuel economy yesterday after work. Had 14 miles left on the clock and nearest Royal Farms was 12 miles away (I'm a Royal Farms boy, not a fan of Wawa). So I put it in "D", slapped on Eco mode and turned off the A/C. By the time I got to royal farms to fuel up, I still had 6-7 miles in the tank. I was shocked on the amount of miles I saved on the journey. Even went from 27.5 -> 27.6, so it was gaining economy. But man....its just not as fun, the extra engine break, the more "pick up and go" with acceleration, etc. :(
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But I did get the extended engine warranty when I got the car, so if something happens I'm fine. Just the difference in gas usage is huge. When I wanna have pure fun with it.
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Edit: Typing errors, yada yada.
 

charleswrivers

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I have gotten 41.x each way back and forth from GA to VA at around 75 mph.

I typically get right at 33 mpg with less than a 2 mpg deviation over the course of a tank with my daily drive to and from work, which is a mix of city highway with a bit of crawling along in line to get to onto base.

I don’t recall ever getting under 30 mpg for a tank... and when I’ve calculated mpgs from mileage vs gallons from a fill, the cars calculation is always within 1 mpg of what I calculate. I can at least say this car manages to get a good 10-15% better than my 9th gen Si. That car was doing good to get 30 mpgs over a tank, and I’d regularly miss the mark at 28-29. It would also calculate its mpgs 1-2 higher than what I’d hand calculate.

This is, of course, totally dependent on my driving style, the route I drive and the environment in which I do it. Whether from winter fuel, engine warmup or a combination of them both... I’ve seen a little variation winter vs summer... but still not enough to ever be below 30 for a tank average.

Looking at the instantaneous... I’m sure I could achieve about 60 mpgs, if only I could maintain 40 mph in 6th with no stops and without running off the road and into a tree from boredom.
 

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Just got my 2017 ex-l around 3 1/2 weeks ago and I've been getting around 28/29 mpg average, was expecting more to be honest but then again I do most of my driving in city settings so that may have something to do with it.
 

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Just got my 2017 ex-l around 3 1/2 weeks ago and I've been getting around 28/29 mpg average, was expecting more to be honest but then again I do most of my driving in city settings so that may have something to do with it.
You are getting about what is expected for mostly city driving.
 


GermanCivic

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Regarding differences between gas mileage methods:

I asked, because the experimental way of calculating "one tank" fuel consumption requires a reference point. I was wondering how accurate the zero fuel point could be. I wouldn't trust it. Usually it's the "full tank." I don't believe this point can be trusted in general either. Full tank today is just not necessarily the same as full tank next week. Completely dry tank would be an accurate reference point, but I don't want to run out of gas. In fact I don't believe there is any reference point available, that would guarantee that the experimental "one tank" data be any more accurate than the on board computer. It may happen to be accurate and may even be accurate in most cases, but there is no guarantee how much off it could sometimes be because of random factors.

The best thing about experimental is that it becomes more and more accurate over multiple tanks when calculated cumulatively (not for each tank and averaged). So experimental data over thousands of miles, if done correctly, are of course the most accurate.
You're absolutely right, the zero point can't be trusted and it's not 100% accurate, nonetheless the measurements are slightly higher than the value which is shown by the head unit and I believe it's very approximate to the truth. o_O

I'm doing this kind of tracking now for 15,000 kilometers on my Civic and did for 100,000 kilometers with my previous cars, the site is called https://www.spritmonitor.de/en/ by the way, german site but english language is available.

--

The video of this guy is very interesting, I'm have to admit I drive over the "zero miles left notification" because the gas tank is so small. I could reach double the amount of miles with my previous car and it was not even a Diesel. With 600 or 700 kilomters range it feels almost like driving a modern electric car. :D

Plus I don't like wasting my time on gas stations, first we don't have much and second Germany is an extremely backward country, so mostly we don't even have these "modern" gas stations where you can pay directly at the gasoline pump, no, we have to walk inside the gas station after filling up, then wait in the queue, then pay... :rolleyes:
 

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So I get really really trash mileage. First off, I work 3.1 KM away from where I live. My drive is usually 5-10 minutes in the morning and the same going home depending on the time I leave. I rarely ever drive my car for any other reason other than work and I always have either the heat or AC on. Because of this I have very short trips in stop and go traffic. My average mileage is about 14.5L/100KM and I average about 300KM a tank. I only got 260KM before my fuel light came on this trip, really really bad.

I always think something is wrong with my car but I honestly think it is the short trips screwing my mileage up.
 

Flash5

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38.5 mpg going 75 MPH for about an hour round trip everyday. Trying to get to the holy land of 42 MPG lol. I think I need to replace the spark plugs since I bought my Civic 1.5L Turbo with 34k miles on it already. On my 18’ Lexus IS (4 cylinder turbo) the maintenance schedule calls for new spark plugs every 40k miles due to the massive pressures from the boost.
 

NonyaBisness

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how is this thread still going, has this not been discussed to death? everyones mileage will be different because we all drive different roads, hell 2 weeks ago I drove out to a clients house, if I had that drive everyday instead of my drive my average MPG would be like 3 MPG higher then mine is, if not more, your route and the speeds you are able to maintain and the length of time you can maintain them massively alter your MPG.
 

GermanCivic

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....my average mileage is about 14.5L/100KM and I average about 300KM a tank. I only got 260KM before my fuel light came on this trip, really really bad.

I always think something is wrong with my car but I honestly think it is the short trips screwing my mileage up.
I don't think there is something wrong with your car, the short distance combined with stop and go traffic makes it impossible to get a good milage.

For these kind of short distances it would be way more efficient to just ride a bicycle. Or also an electric bicycle, gasoline or electric scooter or an electric car.
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