my car moves and runs smooth ,but gives me low mileage?

R

Rathon

New member
i am having a maruthi 800 car..it gives me 11.2 km pl...at the speed of 25 - 30 the car gives out little smoke...should i change the spark plug or do something else...there is no other problem in the car...sometimes i feel the pull ..hm mm what to say...a ...just think it struggles in between ..it is a 800cc car ...my last service was 5000 km ago
 
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