Preventative maintenance is the routine maintenance you need to do on various items to keep them in proper working order. For example air conditioning systems should be cleaned and recharged every few years. This keeps them operating at peak efficiency which will reduce your air conditioning bills. Further it makes sure that they are only running as long as necessary which will increase their lifespan.
Automobiles need preventative maintenance as well. Simple things like changing your oil doing a tuneup and changing air filters will prolong your car's life and keep it operating more efficiently. Most automobile manufacturers recommend that will be changed every 3000 to 5000 miles. Typically regular oil will last 3000 miles, while synthetic oil only needs changed every 5000 miles.
Houses need preventative maintenance to. Your air filter on your here needs changed regularly. Gutters need cleaned out and air vents need to be checked to make sure they are clean. Houses also need painted and inspected to help prevent small problems from becoming major repairs.