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Honda Civic Hybrid MPG-Real World Numbers

540 messages,  Last post on Mar 25, 2013 at 6:51 PM

You are in the Honda Civic Hybrid Forum.

What is this discussion about? Honda Civic, Hybrid Cars, Fuel Efficiency (MPG), Sedan

Messages Page 50 of 54

#490 of 540 Hybrid gas mileage by jtisch

Feb 01, 2010 (9:22 am)

That last word should read winter, not winder.
jt

#491 of 540 hybrid gas mileage by jazzjunkysue

Feb 01, 2010 (5:04 pm)

First day: 42!!! And, it was on hills and in the cold and with lots of slow, fast traffic I have to adjust to.
 
The merrit in Connecticut is what it is: I can't do the super efficient driving without getting shot.
 
I'm real happy with 42! My old 2002 regular civic was getting 34 or lower.
 
And, I LOVE IT!!

#492 of 540 Re: hybrid gas mileage [jazzjunkysue] by dan11809

Mar 30, 2010 (10:23 am)

Replying to: jazzjunkysue (Feb 01, 2010 5:04 pm)
Is it normal with a 2006 HCH to get 39 m.p.g. on the highway with rolling hills at 75 m.p.h.

#493 of 540 Re: hybrid gas mileage [dan11809] by mrwaug

Mar 30, 2010 (10:39 am)

Replying to: dan11809 (Mar 30, 2010 10:23 am)
That depends on air temp and tire pressure. I have noticed that my fuel efficiency is highest when the engine is running at 1100 to 1500 rpm. At 75mph the transmission has shifted out as far as it will go, and the rpms were probably around 2200-2500 rpm at 75mph. Plus the fact that the wind resistance against the car climbs greatly above 55 mph. So in other words, the HCH is great around town, best at a cruse of 35/45mph and begin to suck at higher speeds and heavy loads/ extra passengers.

#494 of 540 Re: hybrid gas mileage [dan11809] by jtisch

Mar 30, 2010 (11:41 am)

Replying to: dan11809 (Mar 30, 2010 10:23 am)
Don't know if you saw one of my earlier posts but a trick I learned is to keep the cruise control ON at ALL TIMES. I use it every chance I get even in local driving. If I am on a road and the speed limit is 35 mph and it is pretty clear ahead, I hit the set or resume button. It does have a positive effect on gas mileage. My last fillup, Friday (and I check my mileage at every fillup) was 49 mpg for local driving, one of my best. Also, with a hybrid long trips do not necessarily mean better mileage. The most I could get on a trip on interstates is 50 mpg. But I always average 46 to 49 mpg local driving. That's without the AC on. With the AC constantly running I usually average in the 44-45 range. I also found I get much better mileage on the off-brand gasoline than I do on the name brand. I can't explain that.
Jon

#495 of 540 Re: hybrid gas mileage [jtisch] by dan11809

Mar 30, 2010 (5:09 pm)

Replying to: jtisch (Mar 30, 2010 11:41 am)
I use that method except going up hills I take the cruise off.I f I don't the r.p.m.s go way up! Air pressure in tires is 44lbs. filled with nitrogen,air off windows up.Still 39 m.p.g. before it was 40-45.Something changed,I can't figure it out.

#496 of 540 Re: hybrid gas mileage [dan11809] by dan11809

Mar 30, 2010 (5:14 pm)

Replying to: dan11809 (Mar 30, 2010 5:09 pm)
I'm going to slow it down to the slow lane 68m.p.h. and see what happens and report back in a couple of weeks.

#497 of 540 MPG - does it worsen with miles? by greenbook

Apr 02, 2010 (9:09 am)

Replying to: dan11809 (Mar 30, 2010 5:14 pm)
Bought a used HCH 06 with 70K on it. Previous driver had logged avg of 29-30MPG and since I have learned the "tricks", I have improved the MPG, but still has not even touched 40avg MPG. Driving almost all highway, cruise control, very mild acceleration, watching the meters constantly, no A/C. On 550 miles, still hovers in the 30s. Does anyone know if mileage (70,000) affects MPG? In comparison with other "real world drivers", much less the marketed MPG, it's so low; it seems like something's wrong.

#498 of 540 Re: MPG - does it worsen with miles? [greenbook] by frednjudik

Apr 02, 2010 (9:39 am)

Replying to: greenbook (Apr 02, 2010 9:09 am)
Per my Honda Dealer, MPG should improve with more mileage.
I suggest you take your car to a Honda Dealer and ask them to do a MPG Test.
If HCH is only getting 29 to 30 MPG, something is wrong! If you're getting 37 mpg, that is, on average, what I get with combined city/highway. We now have 7,600 miles on our 2009 HCH, and were told by the Honda Dealer the more we drive it, the MPG should improve. Sticker advertised MPG's on new vehicles are very inaccurate, and there are fine print disclaimers.

#499 of 540 Re: MPG - does it worsen with miles? [greenbook] by mrwaug

Apr 02, 2010 (10:27 am)

Replying to: greenbook (Apr 02, 2010 9:09 am)
The HCH powertrain can be broken into two parts. Failure or inefficiency on either part can cause poor mileage. The electric motor gives the gas engine a boost when accelerating. Acceleration is what sucks the most fuel, so a boost from the electric motor helps reduce that fuel consumption. Also having the motor shut of at stops also helps unneccesary fuel consumption.
So a problem with the electrical part of the powertrain can cause poor mileage.
The gas engine is extreamly fuel effiecient on its own, but lacks power on acceleration, (thus the electrical boost). So when traveling at say 45mph, it is all gas and no electrical. To see if the problem is one or the other, I like to find a long stretch of level road, get the car up to speed, set the cruise,and reset the mpg display. If the readings are high, then there is a problem in the electrical drive system. It the reading is low, the problem is with the rest of the car: Tires,tire pressure, alignment,not using the proper weight oil, dirty fuel injector's,dirty mass air flow sensor, weak oxygen sensor, too much weight......
I just added Seafoam fuel system cleaner to my 07 GMC Envoy with a 5.3 V8 and gained 3 mpg, so I am going to try it in my civic and see if i get any results. I currently get 50mpg spring and fall 40 during the coldest months and 47 during the hottest months with A/C.

Messages Page 50 of 54

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