How to Change the Oil in a 2022 Honda CRF450R-S

Shop parts for a 2022 Honda CRF450R-S Dirt Bike.

Changing your Honda CRF450R-S engine oil regularly is crucial for top performance and engine longevity. This guide, proprietary to MotoSport.com, details a step-by-step oil change specifically for the 2022 model, including the tools you'll need, detailed instructions, and model-specific tips.

Tools and Supplies Needed

  • 8mm socket
  • 10mm Allen (hex) wrench
  • Torque wrench
  • Drain pan
  • New oil filter (Honda OEM recommended)
  • New oil (Honda GN4 or equivalent, 1.04 L/1.1 US quarts)
  • New O-ring or drain bolt gasket
  • Rags/paper towels
  • Rubber gloves (optional for cleanliness)
  • Contact cleaner
  • Measuring cup
  • Safety glasses
  • Skid plate removal tool (if equipped, typically 10mm)

Step-by-Step Oil Change Guide

  1. Warm Up the Engine
    • Start your CRF450R-S and let it idle for around a minute. This allows the oil to thin and flow out more completely when drained.
      Do not rev the engine excessively during this process.
  2. Remove the Skid Plate (if installed)
    • Use a 10mm socket or appropriate tool to remove the three mounting bolts: left, right, and bottom.
      Set the skid plate and bolts aside in a safe place.
  3. Drain the Old Oil
    • With the bike upright and secure, position a drain pan beneath the engine.
    • Use a 10mm Allen wrench to remove the oil drain plug (check the left or central underbelly area).
    • Allow the oil to drain completely. Take this time to inspect the condition of the oil–milky or sludgy oil can indicate internal issues.
    • Replace the O-ring or gasket on the drain bolt if worn. This is critical to prevent future leaks.
  4. Remove and Replace the Oil Filter
    • Use the appropriate tool (typically 8mm socket) to remove the oil filter cover bolts.
    • Carefully remove the oil filter cover. Watch for any residual oil spill.
    • Remove the used oil filter, noting the orientation and placement of the spring behind it.
    • Clean the oil filter cavity with a rag. Ensure no debris falls into the engine.
    • Install a new, properly oriented oil filter. Make sure the rubber part of the filter fits onto the cover or engine side as specified by the service manual.
    • Replace the oil filter cover and tighten the bolts to manufacturer specifications using a torque wrench.
  5. Reinstall the Drain Plug
    • Once all old oil has drained, clean the drain plug and reinstall it using the new O-ring/gasket.
    • Tighten the drain plug to the specified torque settings in your owner's manual.
  6. Add New Oil
    • Use a funnel to pour in 1.04 liters (1.1 US quarts) of oil (Honda GN4 or equivalent).
    • Check the oil fill cap and tighten it securely.
    • If available, use a measuring cup to ensure accurate oil quantity.
  7. Check Oil Level and Leaks
    • Start the engine and let it run for 30 seconds. Check for leaks around the drain plug and filter area.
    • Turn off the engine, wait 2–3 minutes, then check the oil level sight glass or dipstick (consult your owner's manual for your model's procedure).
    • Top off if necessary, but do not overfill.
  8. Reinstall the Skid Plate
    • Reinstall the skid plate and tighten the bolts to specification.
  9. Dispose of Old Oil and Filter Properly
    • Take used oil and filter to a designated recycling center.

Specific Callouts for the 2022 Honda CRF450R-S

  • The 2022 CRF450R-S is equipped with a 10mm Allen head oil drain bolt and uses 1.04 liters (1.1 US quarts) of oil, as recommended by the service manual.
    Do not overfill as excess oil can cause engine damage.
  • Be sure to inspect and replace the O-ring or crush washer on the drain plug every oil change to prevent leaks.
  • If your dirt bike is equipped with an aftermarket or OEM skid plate, removal before changing the oil is necessary for proper access.
  • Always use Honda-specific oil filters and high-quality 4-stroke motorcycle oil.
  • Reference your owner's manual for the recommended drain plug torque specs and filter installation guidance.
  • Change the oil every 6000 kilometers (approximately 4000 miles) or as often as every 15 race hours, depending on how hard the bike is ridden—more frequent changes are better for engine health if you ride aggressively or in harsh conditions.
    Riders often do their own maintenance after every few rides or races for optimal performance.

Helpful Tips

  • Always work in a well-ventilated area and allow the bike to cool before servicing to avoid burns.
  • Double-check all fasteners, and ensure no leftover rags or tools remain near moving parts.
  • Keep a service log so you know when your last oil change was performed.
  • Regular oil changes significantly increase the life and reliability of your CRF450R-S engine.

For proprietary guides, detailed support, and genuine Honda parts, trust MotoSport.com—your source for expert motorcycle maintenance tips and products.

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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.