My Toyota Camry car consumes excess fuel especially at initial start up and does not smoke?

The fuel guage falls faster within the first 30 mins or there about until the engine Temperature rises. Car make is Toyota Camry 1992 ModelMy Toyota Camry car consumes excess fuel especially at initial start up and does not smoke?It is normal for cars to consume more fuel on initial startup on cold days.One thing to remember is that an engine always runs most efficiently when it is warmed to operating temperature. Now, there is not a lot of information in the question, but what I would do to achieve optimun gas mileage is insuure that the tires have the proper air pressure, a good tune-up including the air and fuel filters and have as less weight as possible. proper tire pressure alone will give you a noticeable difference in fuel economy.My Toyota Camry car consumes excess fuel especially at initial start up and does not smoke?THE ENGINE IS JUST TRYING TO HEAT UP. IF YOU ARE IN A WARMER AREA SUCH AS FLORIDA THAN NOT SEEING THE SMOKE IS NOT A BIG DEAL, BUT IF YOU ARE IN CHICAGO YOU HAVE A HOLE SOMEWHERE. DID YOU TRY RUNNING THE ENGINE AND LOOKING UNDER THE CAR OR ENGINE COMPARTMENT TO SEE IF YOU SEE ANY EXHAUST SMOKE FROM THERE?My Toyota Camry car consumes excess fuel especially at initial start up and does not smoke?Which state are you in? The various Toyota Service Departments out there may be able to solve this and save you alot of miles per gallon.