What Are the Recommendations For Service Maintenance Schedules

It is best to follow the Severe Service maintenance schedules found in most new car owner’s manuals, with a few exceptions:

  • Air filters need to be inspected regularly and replaced as
    often as needed, regardless of mileage or time. Dirty air filters can
    increase fuel consumption and exhaust emissions.

  • Fuel filters should be replaced yearly and/or at every
    tune-up, especially on fuel injected cars. The fuel filter in a vehicle with
    electronic fuel injection passes a much larger volume of fuel than its
    counterpart in a carbureted application. If the tank is dirty or rusty,
    constant fuel recirculation can pick up a lot of debris that ends up in the
    filter. If the filter plugs, the engine is starved for fuel or unfiltered
    fuel is allowed to bypass the filter. The latter can damage injectors.

  • Oil filters need to be replaced at every oil change (every
    six months or 3,000 miles in most cases) despite the advice in many owner’s
    manuals to only change the filter at every other oil change. A new filter is
    cheap insurance against major engine damage, so why take unnecessary risks?

  • Few owner’s manuals have a suggested change interval for the
    automatic transmission fluid (ATF) or fluid filter unless the vehicle is
    used for towing. Most transmission specialists say the best preventative
    maintenance for prolonging automatic transmission life is to change fluid
    and filter every two years or 30,000 miles.

  • Follow the manufacturer’s recommendations on the specific
    type of ATF to use. The type of ATF should match the specs required for the

  • All GMs, most late model
    Chryslers and many imports use Dexron II. All 1988 and later Fords require
    Mercon ATF. Most universal ATF fluids are acceptable for either of these.
    Older Fords or imports require Type F fluid.

Written by

All Around Automotive Repair Inc. is a full-service automotive repair and detail shop—but with a unique calling: to provide affordable service to the entire community regardless of financial circumstances.

Comments are closed.