how to check the mpg???

Fill tank, reset trip odometer, when you fill the tank again, calculate mileage by dividing number of miles by number of gallons of second fill-up.  You may also need a tune-up or oxygen sensor.

what you do is when you fill up your tank reset your tripometer in your dashboard and when you fill it up ALL the way take the reseat and divide the miles by the gallons
miles/gallons= mpg

sweet man thanks

also..another trick to get the best gas milege is to make sure your oil is full/good (not old), tire pressure is up, keep your air filter is clean and try to avoid slamming on the brakes and the gas.

also you will rarely get the stated fuel mileage on any vehicle for one simple reason, the regulations for testing. automotive companies are only restricted to testing the engine for fuel mileage in order to state and estimated EPA. this means that the fuel mileage they stated would be a peak when testing the the bare engine, eg. when they tested it it could have been with no alternator or a/c belts attached, and that extra drag alone will cause you to have a lower mpg rating when you actually drive the car, the system has been revised but not nearly perfected... here is a link that might give you some insight http://www.epa.gov/fueleconomy/420f06069.htm

did u find out how many gallons the tank holds then u take the miles u have driven on the tank and divid the two and that is how to find miliage

Plus is that the Estimated mileage because they are always off