Also note - the dashboard readout is NOT accurate if it has been recently reset. It needs 2 or 3 tanks to stabilize, or the number changes too drastically.
Reset your trip odometer at each fillup. Divide the miles per tank by how much gas you just filled up with in order to get an ACCURATE measurement of fuel economy.
In addition - make sure your tires are inflated properly, and that you have healthy spark plugs and spark plug wires. Make sure your air filter is clean, and your fuel filter has been changed within the past... oh... 2 years or so.
And go easy on the throttle
