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Home >> Kia >> 2004 >> Optima EX, 2.7 8 >> Repair and Diagnosis >> Engine Mechanical >> Lubrication System >> 2.7L V6 Engine >> General >> Changing Engine Oil

Changing Engine Oil

  1. Run the engine until it reaches normal operating temperature.
  2. Stop the engine.
  3. Remove the oil filler cap (on rocker cover) and the drain plug (on the oil pan). Drain the engine oil.
    Fig 1: Locating Oil Pan Drain Plug
    G00327921Courtesy of KIA MOTORS AMERICA, INC.
  4. Re-install and tighten the drain plug to the specified torque.

    Tightening torque

    Drain plug : 35-45 Nm (350-450 kg. cm., 25-33 lb. ft.)

    CAUTION: Whenever tightening oil drain plug, use a new drain plug gasket.
  5. Fill the crankcase with fresh engine oil through the oil filler cap opening.

    Refill Specifications

    Without oil filter; 4.5 lit (4.76 U.S.qts., 3.95 Imp.qts.)

    With oil filter; 4.8 lit (5.07 U.S.qts., 4.22 Imp.qts.)

    CAUTION: Do not overfill the crankcase. This will cause oil aeration and loss of oil pressure.
  6. Install the oil filler cap.
  7. Start and run the engine.
  8. Stop the engine and then check the oil level. Add oil if necessary.
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