How to Change the Oil in a 2013 Suzuki DRZ400SM

Shop parts for a 2013 Suzuki DRZ400S Dirt Bike.

Routine oil changes are essential to keep your 2013 Suzuki DRZ400SM performing at its best and to extend engine life. This guide, proprietary to MotoSport.com, covers exactly what you’ll need, step-by-step instructions, and model-specific insights for a successful oil change on your DRZ400SM.

Tools and Supplies Needed

  • Ratchet and sockets: 8mm, 12mm, 17mm
  • Torque wrench
  • Oil drain pan
  • Funnel
  • Gloves and rags (for clean-up)
  • New oil filter
  • Two quarts 10W-40 motorcycle oil
  • New crush washer(s) (recommended)
  • Safety glasses (optional, for personal protection)

Steps to Change the Oil

  1. Warm Up the Engine
    Run the bike for several minutes to get the oil warm (not hot), which helps it drain more completely.
  2. Remove the Skid Plate (if equipped)
    Use your ratchet to remove the skid plate for easier access to the drain bolts.
  3. Remove the Oil Filler Cap/Dipstick
    The cap is on top of the frame. Removing it allows the system to vent and helps the oil drain smoothly.
    Note: When checking the oil level later, you do not screw the dipstick in; rest it on the threads to get an accurate reading.
  4. Drain Oil from the Crankcase
    Place the drain pan under the engine. Use a 17mm socket to remove the drain bolt and washer from the bottom of the crankcase and let the oil flow out.
  5. Drain Oil from the Frame
    Move the drain pan under the bottom frame tube and use your 12mm socket to remove the frame drain bolt and washer. Allow all oil to drain.
  6. Inspect and Replace Washers
    Check the drain bolt washers and replace them if worn or damaged to prevent future leaks.
  7. Reinstall and Torque Drain Bolts
    Reinstall both the crankcase and frame drain bolts with washers. Tighten with a torque wrench to 15 ft-lbs (20 Nm). Don’t overtighten.
  8. Replace the Oil Filter
    The oil filter sit behind a cover (held with several bolts, typically 8mm). Remove the cover, swap the old filter with a new one, ensuring the filter is facing the correct direction. Check for an O-ring and replace if needed.
  9. Add New Oil
    Place a funnel in the oil filler, and pour in 1.8 liters (about 1.9 quarts) of 10W-40 if you replaced the filter, or 1.7 liters (about 1.8 quarts) if you didn’t.
  10. Check Oil Level
    Start the bike and let it idle for a few minutes to circulate the oil. Wait a couple minutes, then check the oil level using the dipstick without screwing it in. Add oil if needed. Avoid overfilling–it should sit between the “L” and “F” marks on the stick.
  11. Inspect for Leaks – Reinstall Skid Plate
    Run the engine and check all plug locations for leaks. If everything is dry, reinstall the skid plate.
  12. Dispose of Old Oil Responsibly
    Take your used oil and filter to a proper recycling facility.

Specific Callouts for the 2013 Suzuki DRZ400SM

  • Dipstick Method: Do not screw your dipstick in when reading the oil level; simply rest it on the threads for an accurate measurement.
  • Oil Volume: The correct capacity is 1.8 liters with filter change, 1.7 liters without filter change.
  • Filter Orientation: Pay close attention to the oil filter orientation; the DRZ’s oil filter must be installed with the rubber O-ring side facing outwards—an incorrect install can lead to oil starvation.
  • Maintenance Interval: Suzuki recommends the first oil change at 600 miles and then every 3,500 miles or at least once per year.
  • No Significant Changes Across Model Years: The DRZ400SM oil change process has not changed much since the model’s introduction, so this guide covers all DRZ400SM variants (including S and E models around 2013).

Final Tips

  • Always use a high-quality motorcycle-specific oil for best performance.
  • Tighten bolts to spec, but avoid overtightening as it can strip threads in the aluminum case.
  • Maintain a regular oil/filter change schedule for optimum engine longevity.

With these clear instructions, your 2013 Suzuki DRZ400SM will keep running strong, letting you focus on the ride.

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Shop Oil Fillers and Drain Plugs for a 2013 Suzuki DRZ400S Dirt Bike.

Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.