How to Change the Oil in a 2016 Suzuki DR-Z400SM

Shop parts for a 2016 Suzuki DR-Z400SM Dirt Bike.

Changing the oil on your 2016 Suzuki DR-Z400SM is a crucial maintenance task to keep your dual sport running smoothly and reliably. Follow this comprehensive guide, tailor-made for MotoSport.com, to ensure the job is done right every time. Below you’ll find the tools needed, step-by-step instructions, and key notes specific to the DR-Z400SM.

Tools & Supplies Needed

  • Ratchet
  • 8mm, 12mm, and 17mm sockets
  • Torque wrench (ft-lb capable)
  • Drain pan
  • Gloves and rags
  • Funnel
  • OEM or aftermarket oil filter (Hiflofiltro HF139 is a popular choice)
  • 2 quarts of SAE 10W-40 motorcycle oil (Look for oil meeting SF or SG spec, e.g. Motul 5100 10W-40)
  • New drain bolt washers (optional but recommended)
  • Safety goggles

Preparation

  • Start the engine and let it idle for 3–5 minutes. This ensures the oil is warm and flows out easily with contaminants suspended for removal.
  • Turn off the bike and ensure it’s stable (use a center or paddock stand if available).
  • Have all your tools and supplies ready and workspace protected from oil spills.

Step-by-Step Oil Change Process

  1. Remove Oil Filler Cap/Dipstick
    • Locate the oil filler cap/dipstick on the top of the frame. Remove it to allow air in; this helps the oil drain thoroughly.
      Pro tip: When checking the oil level later, the dipstick should not be screwed in—just inserted until it stops.
  2. Drain Engine Case Oil
    • Position your drain pan beneath the engine.
    • Using a 17mm socket, remove the drain bolt and washer from the bottom of the crankcase. Allow the oil to drain fully (several minutes).
    • Inspect the crush washer; replace if worn or damaged. Reinstall the bolt and washer, and use a torque wrench to tighten to 15 ft-lbs.
  3. Drain Frame Down Tube
    • Move the drain pan under the frame’s lower section.
    • With a 12mm socket, remove the frame drain bolt and washer. Let the remaining oil drain out.
    • Check and replace the washer if needed. Reinstall and torque the bolt to factory spec (also 15 ft-lbs is typical, confirm in your manual).
  4. Replace the Oil Filter
    • Locate the oil filter cover on the right side of the engine, just above the clutch cover.
    • Use an 8mm socket to remove the three bolts on the filter cover.
    • Carefully remove the old filter (note orientation) and O-ring. Clean the cover and seating area.
    • Install the new filter (open end out), lubricate the O-ring with fresh oil, and install.
    • Reinstall the cover and torque bolts evenly and gently (do not over-tighten; use around 7 ft-lbs).
  5. Add Fresh Oil
    • Insert a funnel into the frame oil filler neck.
    • Pour in about 1.8 liters (1.9 quarts) of 10W-40 oil if replacing the filter, or 1.7 liters (1.8 quarts) if not.
    • Reinstall the filler cap/dipstick.
    • Start the bike, let it idle for 5 minutes, then turn off and let it rest for 1–2 minutes.
  6. Check Oil Level
    • Remove the dipstick (not screwed in), wipe clean, reinsert, and check oil level.
    • Top off if below the full mark. Reinstall the dipstick and wipe up any spills.
  7. Inspect for Leaks
    • Start the engine and check all seals, bolts, and covers for leaks.
    • Reinstall the skid plate if removed. Dispose of old oil and filter properly.

Specific Call-Outs for the 2016 Suzuki DR-Z400SM

  • The DR-Z400 line has used essentially the same oil change layout since 2000: these steps are valid for your 2016 model.
  • Be gentle when tightening the oil filter cover and drain bolts. Over-torquing can strip threads or crack the cover.
  • This model has two drain bolts: one in the engine case and one in the frame. Make sure to drain both for a full oil change.
  • Use only motorcycle-specific oil; car oils often lack the necessary friction additives for your wet clutch.
  • After the first change (at 600 miles), Suzuki recommends an interval of every 3,500 miles—but more frequent changes are wise for dirt riding or racing.
  • Always check your owner’s manual for your specific torque values and recommended oil brand/viscosity.

Final Tip

  • When in doubt, refer to your Suzuki service manual. If you notice the oil level dropping rapidly or have trouble sealing the drain bolts, consult a mechanic immediately.

By following these steps, you’ll keep your 2016 DR-Z400SM’s engine running strong for many adventures ahead.

Related Shopping Categories

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Shop Tools for a 2016 Suzuki DR-Z400SM Dirt Bike.

Shop Oil Fillers and Drain Plugs for a 2016 Suzuki DR-Z400SM 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.