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Thread: Car Tuning Advice required. Please Help!

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    PakWheeler Follow
    accord786's Avatar
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    Default Car Tuning Advice required. Please Help!

    Salaam Alikum

    I have a Honda Accord CL9 2002. 132000km on the dial. Its always been giving me 6km/l in city driving with AC on in Karachi.


    Recently, I have noticed that the mileage has dropped even further and is now in the 5km/l range.

    I use Mobil1 Semi Synthethic 10w/40 oil. The spark plugs have been changed recently along with air filter.

    Please could you let me know if I should take it to the mechanic for 'tuning' and what I should ask him to do to improve the mileage.





    Similar is the case with my Nissan Otti 660cc Model 2007. It used to give me 8km/l. I used to use Repsol engine oil but due to it not being available, I changed to the yellow shell oil and think the mileage has dropped since then.

    It now barely gives me 5km/l as well.

    During this oil change, the guy put a larger oil filter than what was installed in it previously. Could that have affected the mileage of the car? The whole on the filter was the same size but the actual filter was deeper than the previous one.

    I took the Otti on the Highway recently and it gave me around 12km/l I think but now its back to 5km/l in the City.

    Any advise on what I could do with these cars to improve their mileage would be grealy appreciated

    Look forward to hearing from you soon

    Kind Regards

    Humair

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    honda is usually bad when it comes to mileage.... but not that bad.... get a proper tune-up.. get air filter changed, oil filter changed and oil changed...get your gear fluid viscosity checked.... or just replace it with fresh oil..... get your tappets checked.... they are probably too tight.... get them a bit lose..... then test your car.... if problem persist, you have a faulty sensor.... get your O2 sensors replaced... and get your MAF sensor, MAP sensor and throttle position sensor replaced...... these sensors sometimes, when faulty, dont give an engine checklight and they all play a vital role in mileage..... this is for your accord... if you dont know what i'm talking about, just tell all this to your mechanic he should know all this.....
    as far as your otti is concerned, no idea what is happening .... there is no way a 660cc gives 5km/l.... maybe you should try changing your driving style....

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