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Thread: Honda civic 06 fuel consumption problem

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    Default Honda civic 06 fuel consumption problem

    Aoa dear members!
    I've recently bought a 06 civic vti oreal prosmatec which has done 85k kilometers and had CNG installed with an advancer.
    I've removed the CNG cylinder (the kit still in place), and replaced spark plugs with new ones, and changed the air filter, and checked the air intake for blockages, but my car is still giving me an avg of 8 to 9 kmpl without AC.
    From what I have heard its consuming a lot of petrol.
    Kindly suggest me what to do to improve my car's fuel avg. I am being careful with my driving.
    I was thinking to get it tuned. Any good suggestions?


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    Quote Originally Posted by jazzy77 View Post
    My 05 Civic Vti Oriel Prosmatec (petrol only) gives me 10.5 to 11 km/l in city if I drive at 2000rpm constantly to a max speed 70km/hr max.
    Its running on Yokohama db 205/60/15
    Its not all about keeping at 2k. There are seperate techniques for acceleration and cruising:

    Acceleration:
    Your gear is to get into higher gears as soon as possible. Lift off the accelerator pedal when you reach the minimum shift speed. This way the car will shift quicker, spending less time in the fuel consuming lower gears. The minimum speeds are: 2nd at 10 km/h+, 3rd at 32 km/h+, and 4th at 52 km/h+.

    Cruising:
    Your goal is to maintain torque-converter lockup. There are 3 modes for the operation of the torque converter:

    1-fully fluid, AKA slushbox mode. For the same gear and speed combination, the RPM will vary according to throttle input. All gears use this mode.

    2-semi-lockup mode. The RPM will drop around 200-300 revs ( going from 1700 to 1500 for example), for the same gearing and speed combination. Its not full lock up mode, however, as you can see when you lift from the accelerator. The RPM will drop a further 200-300 revs, which shows that the TC wasn't fully locked up.

    This mode is only noticeable in 3rd and 4th gear; I couldn't actively use it in 1st and 2nd. That's why it is important to get to at least 3rd ASAP.

    3-full lock up - the transmission now behaves like a manual transmission. The input and output shaft are spinning at the same speed; there are no parasitic losses to the transmission. Most of the advantages of MT's are lost at this point. This mode is only available in 4th, at speeds over 70.

    Even at speeds over 70, the car may sometimes go out of lock up, like when going up an incline. I counter this by building my speed up before hand, and using a light throttle pressure for the climb. Even then, it periodically goes out of lock up. I just let up on the accelerator for a second and press it back; this locks up the transmission again. In general, you don't want to be going less than 75 km/h on GT road/ m-ways. It is actually better for fuel economy to speed up a little (on automatics). Generally, 80-100 km/h is good for fuel economy.

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    @ZainMahdi I already practice DWB it just comes naturally to me. As for Nice on and DWL I will try that too. Let's see. Bt these are all tactics to further increase the fuel efficiency beyond normal. My car is not even giving normal mileage, so I want to bring it to that level first, atleast, and then even more by these above mentioned tactics

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    Quote Originally Posted by dr_usman View Post
    @ZainMahdi I already practice DWB it just comes naturally to me. As for Nice on and DWL I will try that too. Let's see. Bt these are all tactics to further increase the fuel efficiency beyond normal. My car is not even giving normal mileage, so I want to bring it to that level first, atleast, and then even more by these above mentioned tactics
    There is another factor in the maintenance that nobody has mentioned. Have you got the afr (air/fuel ratio) checked? It might be running richer than normal. The ideal mixture is 14.7 parts of air to 1 part of fuel (14.7 to 1).

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    @ZainMahdi yes I am suspecting that to be a cause as well. Haven't had the time to get it checked abhi, but it might just not be correct as I noticed a sieve in the air intake sivet where the main air filter is placed.
    Will get it fixed after I go to Islamabad. Right now in Kashmir

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    @ZainMahdi also guide me where to get all these things corrected especially air fuel mixture

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    Quote Originally Posted by dr_usman View Post
    @ZainMahdi also guide me where to get all these things corrected especially air fuel mixture
    Here's a thread about a Corolla that was having similar problems. The culprit turned out to be poor afr.

    I can't personally recommend a shop, because I have never had the afr adjusted before. Perhaps you can ask from the OP of that thread?
    _ 22 km/l from '03 VTi automatic, with plenty of room for improvement
    _ How to hypermile: http://www.cleanmpg.com/community/index.php?threads/1510/

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    @ZainMahdi thankyou so much! I'd read on it once home

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    Quote Originally Posted by dr_usman View Post
    @abuzerkhan yes that's what I am talking about, I want similar average from my car too
    dr sahab i am using dunlop eco EC201. tyre size is 195/65R15. i came back from isl today. car gave me average of 16.5 kmpl. Also, car was driven on 130 plus. also took it to 170. ALHAMDOLILLAH quite satisfied with this average. I spend one day in isl and visited an electrician in G7 and he was damn good guy. i specially visited that guy to get my car issues resolved and mileage improved further. if you need his contact details do let me know. Thanks.

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    @abuzerkhan sure man! I would love it!
    And wow MA ! Fantastic car you have MA!
    May Allah bless u and my your car keep running like this,

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    @abuzerkhan Eco tyres are made for fuel efficiency, yehi sunna chah raha tha main, cz I've been reading and many users do report improvement in fuel consumption with fuel saving tyres

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    Got my car tuned today

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    Throttle service. Plugs changed again. Engine oil changed. Put in Honda 10w 30 oil.
    Transmission oil changed. Put in Honda branded.
    Ecu reset
    Tappet adjustment
    Car feels much lighter and smoother to drive
    Let's see it it improves fuel efficiency or not. Keeping fingers crossed

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    Quote Originally Posted by dr_usman View Post
    @abuzerkhan sure man! I would love it!
    And wow MA ! Fantastic car you have MA!
    May Allah bless u and my your car keep running like this,
    AMEEN. i pray you get same economy as well. kindly visit this guy and ask him that you want a complete computerized checkup and want to adjust its race to 1.8 RPM

    Yasir Auto Electrician
    0345-5174802
    Khada Market G-7/1.

    i highly recommend you to visit him and do post update. i visited many electricians in lahore but was quite disappointed. then i visited him and pretty much satisfied. guy is genius and his charges are reasonable as well.

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    Quote Originally Posted by dr_usman View Post
    @abuzerkhan Eco tyres are made for fuel efficiency, yehi sunna chah raha tha main, cz I've been reading and many users do report improvement in fuel consumption with fuel saving tyres
    actually i didnt change it myself. i got it with the car as its been about 5 months that i got this car.

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    Quote Originally Posted by dr_usman View Post
    Throttle service. Plugs changed again. Engine oil changed. Put in Honda 10w 30 oil.
    Transmission oil changed. Put in Honda branded.
    Ecu reset
    Tappet adjustment
    Car feels much lighter and smoother to drive
    Let's see it it improves fuel efficiency or not. Keeping fingers crossed
    Dr sahab at what rate you got your transmission oil? i changed it a couple of days back as well. and how much you poured it? do share your car fuel average. i hope it gets better.

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    PKR 900~1000 per litre
    2.5L QTY
    Got mine changed last week.
    ...success takes time, persistence, determination, and most importantly, believing in yourself

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    @abuzerkhan transmission oil was 900/litre
    And total of 3litres were put into it. So a total of 2700rupees
    Tuning cost me 1200
    Engine oil 3.7litres for 1900
    Oil filter 200
    NGK iridium plugs 3300

    I surely will share my fuel consumption after a few days IA

    My rpm however does stay a little higher occasionally after the tuning. The mechanic said it will settle in about 3 days. So let's see.

    And @abuzerkhan, rpm to be set at 1.8, isn't it quite fast, and does it not cause the car to accelerate fast as soon as u lift the foot of the brake, and mantain a constant speed even after you take your foot off the accelerator??

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    Quote Originally Posted by usmanamjad82 View Post
    PKR 900~1000 per litre
    2.5L QTY
    Got mine changed last week.
    isnt it too low?? i changed it and it put 3 litres total.

    Quote Originally Posted by dr_usman View Post
    @abuzerkhan transmission oil was 900/litre
    And total of 3litres were put into it. So a total of 2700rupees
    Tuning cost me 1200
    Engine oil 3.7litres for 1900
    Oil filter 200
    NGK iridium plugs 3300

    I surely will share my fuel consumption after a few days IA

    My rpm however does stay a little higher occasionally after the tuning. The mechanic said it will settle in about 3 days. So let's see.

    And @abuzerkhan, rpm to be set at 1.8, isn't it quite fast, and does it not cause the car to accelerate fast as soon as u lift the foot of the brake, and mantain a constant speed even after you take your foot off the accelerator??
    good. i also got it at same rate and quantity was same he he he i was expecting this question about rpm.dont worry. its not that rpm. its rpm on his computer. your car rpm on meter wont be changed. it will remain at its position. he set it from the dashboard. my car was making too much noise. he checked it and said its rpm is 2.54 where as it should be 1.8 although rpm on meter was normal but engine noise was too much. trust me bro you will not regret it. visit him once and discuss with him detail. i was taken to him by my friend who maintained his civic from him from some years. your issue of higher rpm will be resolved IN SHA ALLAH.

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    ^ the booklet says 2.4L for an Auto txn.
    ...success takes time, persistence, determination, and most importantly, believing in yourself

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    Quote Originally Posted by abuzerkhan View Post
    i am using dunlop eco EC201. tyre size is 195/65R15.
    Are these tires rated LRR (low rolling resistance)?
    _ 22 km/l from '03 VTi automatic, with plenty of room for improvement
    _ How to hypermile: http://www.cleanmpg.com/community/index.php?threads/1510/

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