2003 Mitsubishi Lancer EvolutionFACTORY OEM SERVICE PROCEDURE

Replacement Intervals (Lancer)

REPLACEMENT INTERVALS (LANCER)

Component Months Miles
Air Filter
Normal Service (1) 30,000
Severe Service (1) 15,000
Automatic/Manual Transaxle Fluid (1) (2)
Coolant (1) (3)
Oil
Normal Service 12 (4) 7500
Severe Service 3 3000
Oil Filter
Normal Service 12 (5) 15,000
Severe Service 6 6000
Spark Plugs
Except Platinum
Normal Service (1) 30,000
Severe Service (1) 15,000
Platinum
Normal Service (1) 60,000
Severe Service (1) 15,000
Spark Plug Wires 60 60,000
Timing Belt (1) (6) 60,000
(1) Monthly intervals not available from manufacturer.
(2) Inspect fluid every year or 15,000 miles. Under severe service conditions, change fluid every 30,000 miles.
(3) Change coolant at first 4 years or 60,000 miles, then change after every 2 years or 30,000 miles.
(4) Replace oil every year if annual mileage is less than 7500 miles.
(5) Replace oil filter at oil change if annual mileage is less than 7500 miles.
(6) On California vehicles, changing timing belt at 60,000 miles is recommended, but not required. Change timing belt at 100,000 miles, if not previously changed.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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