1996 Toyota Camry's Regular Maintenance

change oil and oil filt erevery 3,000 miles air filter 6,000 miles,regular check on all fluids,35 psi in tires

Like said before, change the oil ever 3K miles, if you don't drive it that much then every 3 months. Keep tire pressure where it needs to be and that will help with gas millage. If you just purchased it ten i would recommend changing out the spark plugs and doing a complete cleaning of the entire engine, and the differentials, make sure that the timing belt is in good condition (those are not fun to try and change yourself...and costly to take to the mechanic) serpintine belt should also be checked (pretty easy to fix), my 95 was having some gas millage issues recently, if you see that then get the fuel filter changed, and get a fuel injection cleaning done.