How to Change the Oil in a 2011 Suzuki DR-Z400SM: The Essential MotoSport.com Guide

Shop parts for a 2011 Suzuki DR-Z400S Dirt Bike.

Regularly changing your oil keeps your 2011 Suzuki DR-Z400SM running strong on- or off-road. The process is relatively straightforward, but this model features a dual drain system (engine and frame) and a few details you shouldn't overlook.

Tools and Parts You'll Need

  • Ratchet
  • 8mm, 12mm, and 17mm sockets
  • Torque wrench (for proper bolt tightening)
  • Oil drain pan
  • Gloves and rags (for safety and clean-up)
  • Funnel
  • OEM or quality replacement oil filter (e.g., Hiflofiltro HF139)
  • Two quarts of 10W-40 motorcycle oil (meets SF, SG, or later spec)
  • New crush washers for drain bolts (recommended)
  • Service manual (for reference and torque settings)

Oil Change Intervals for the DR-Z400SM

  • The first oil change at 600 miles, then every 3,500 miles afterwards or once a year if you ride less.

Step-by-Step Guide

  • Warm up your engine for several minutes. Warm oil drains more thoroughly and suspends contaminants better.
  • Remove the skid plate if installed to access the drain bolts easily.
  • Remove the oil filler cap/dipstick on top of the frame. This vents the system and helps oil drain faster.
  • Place the drain pan under the engine. Remove the 17mm drain bolt and washer from the bottom of the crankcase.
    Let the oil drain completely. Inspect and replace the crush washer if needed.
  • Reinstall the engine drain bolt and washer. Tighten to 15 ft-lbs (20 Nm) using your torque wrench.
  • Move the drain pan beneath the lower frame tube. Remove the 12mm frame drain bolt and washer. Let remaining oil drain.
    Inspect/replace this washer, then reinstall the bolt and tighten to spec (about 10 ft-lbs/13 Nm).
  • Locate the oil filter cover (right side of engine) and remove the three 8mm bolts. Pull the cover and old filter.
  • Check the oil filter cover O-ring. Replace if cracked or flattened. Insert the new oil filter (open side out).
  • Reinstall the filter cover and tighten bolts evenly to 7 ft-lbs (10 Nm).
  • Pour in new oil (10W-40):
    • 1.8 liters (1.9 quarts) with filter change
    • 1.7 liters (1.8 quarts) without filter change
    Use a funnel and fill at the frame filler opening.
  • Reinstall the dipstick but do not screw it in when checking the oil level.
  • Start the engine and idle for a few minutes. Turn off and wait 3-5 minutes for oil to settle.
    • Check the oil level while the bike is upright and the dipstick sitting (not screwed in)
    • Add oil if needed to reach the upper mark.
  • Reinstall the skid plate, wipe down the bike, and check for leaks.

2011 DR-Z400SM Specific Call-Outs

  • Dipstick Reading: On all DR-Z400S/SM models, the dipstick oil level is read with it sitting on the threads (not screwed in) while the bike is upright. Overfilling can cause excessive oil blow-by and airbox mess.
  • Dual Drain Points: This model requires draining oil from both the engine crankcase and frame tube. Missing the frame drain leaves old oil in the system. Always drain both.
  • Oil Capacity: Double check motorcycle is level and oil is at correct temp before making the final oil level verification.
  • Inspect Washers: Inspect and replace the crush washers on both the engine and frame drain bolts for a leak-free seal.
  • Service Kits Available: Order a DR-Z400SM-specific oil change kit to ensure correct filter and crush washers.

Pro Tips from MotoSport.com

  • Dispose of used oil responsibly at a motorcycle dealer or recycling center.
  • Keep records of your service date and mileage for warranty and resale value.
  • Check oil often between changes if you ride in hot, dusty, or high-RPM conditions.
  • Use quality oil like Motul, Suzuki, or other known brands for reliable wet clutch function.

Keep your 2011 Suzuki DR-Z400SM running strong with MotoSport.com's expert parts selection and service advice every oil change.

Related Shopping Categories

Shop Motor Oil for a 2011 Suzuki DR-Z400S Dirt Bike.

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Shop Oil Drain Pans for a 2011 Suzuki DR-Z400S Dirt Bike.

Shop Tools for a 2011 Suzuki DR-Z400S Dirt Bike.

Shop Oil Fillers and Drain Plugs for a 2011 Suzuki DR-Z400S 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.