There can be numerous causes of poor mileage of a car. First of all, it depends on the transmission of the car: whether you have a manual or an automatic transmission on your car. Cars which have a manual gear box are having a better mileage compared to cars which have an automatic gear box. Let's take the example of a Toyota Corolla. A Corolla with a manual gear box might be having an average of 12km/ltr.
However the same car with an auto gear box will be having a much lower mileage compared to the manual geared Corolla. The reason for this is that automatic transmission cars consume more fuel than manual transmission cars which leads to a poor mileage.
Another reason for poor mileage can be the tuning of your car. This involves setting of the car's air filter, spark plugs, and plug points. People who want better acceleration and performance for their cars have to compromise on fuel economy sine they have their cars tuned in a way that more fuel is being consumed which leads to poor mileage.
Another reason for poor mileage can be the condition of your car. If your car is very old and has its engine being opened up many times for repair, fuel economy will suffer. The use of air conditioner in cars also leads to a poor mileage. E.g. a car gives you 400kms in a full tank of fuel without the ac being switched on. The same car will give you about 250-280 kms if you have your ac switched on for the full duration of your journey.
However the same car with an auto gear box will be having a much lower mileage compared to the manual geared Corolla. The reason for this is that automatic transmission cars consume more fuel than manual transmission cars which leads to a poor mileage.
Another reason for poor mileage can be the tuning of your car. This involves setting of the car's air filter, spark plugs, and plug points. People who want better acceleration and performance for their cars have to compromise on fuel economy sine they have their cars tuned in a way that more fuel is being consumed which leads to poor mileage.
Another reason for poor mileage can be the condition of your car. If your car is very old and has its engine being opened up many times for repair, fuel economy will suffer. The use of air conditioner in cars also leads to a poor mileage. E.g. a car gives you 400kms in a full tank of fuel without the ac being switched on. The same car will give you about 250-280 kms if you have your ac switched on for the full duration of your journey.
