How to Change the Oil in a 2024 Honda CRF450RW: Step-by-Step Guide

Shop parts for a 2024 Honda CRF450RW Dirt Bike.

Maintaining your 2024 Honda CRF450RW with regular oil changes ensures engine longevity and peak performance. The following proprietary MotoSport.com guide provides detailed instructions, essential tools, and model-specific tips for a smooth oil change process.

Tools and Parts Needed

  • 8mm and 10mm sockets
  • 10mm Allen key
  • Ratchet
  • Torque wrench
  • Honda oil filter (refer to your manual or local dealer for the latest part number)
  • Honda recommended oil (typically 20W-50 for high performance, double-check your owner's manual)
  • New crush washer and O-ring
  • Oil drain pan
  • Funnel
  • Clean rags
  • Safety glasses and gloves
  • Contact cleaner (optional, for spilled oil cleanup)
  • Measuring cup

Pre-Oil Change Call-outs for the 2024 CRF450RW

  • Interval:– Honda recommends changing the oil and filter every six races or 15 hours of use on the CRF450R platform, which applies to the RW variant as well.
  • Oil Type:– Use only Honda-approved or equivalent oil (typically 20W-50 for high performance but always check your owner's manual for updates in specification).
  • Oil Capacity:– Confirm oil capacity for your model year in the service manual as this can vary slightly with new revisions.
  • Model Note:– The 2024 model uses an oil sight glass for easy level checks and has a compact, easily accessible filter. Always inspect O-rings for damage as leaks are common if reused too long.

Step-by-Step Oil Change Procedure

  1. Warm Up the Engine
    Start your CRF450RW and let it idle for 1-2 minutes. Warm oil drains faster and more completely, carrying more contaminants with it.
  2. Remove the Engine Guard (If Equipped)
    Use an 8mm or 10mm socket to remove the left side engine guard for easier oil filter access.
  3. Remove the Filler Cap
    Unscrew the oil filler cap to let the crankcase breathe, ensuring a faster, smoother oil drain.
  4. Drain the Old Oil
    Locate the drain bolt under the engine. Use a 10mm Allen key or 10mm socket to remove the drain bolt and crush washer. Allow all oil to flow into the drain pan. Inspect the oil for metallic flecks or sludge, which can indicate engine wear.
  5. Remove the Oil Filter
    Remove the two cover bolts (typically 8mm or 10mm) to access the oil filter on the left side. Carefully pull out the filter–mind the orientation, as the rubber gasket side should face the cover.
  6. Inspect and Replace O-rings
    Every oil change, inspect the filter cover O-ring. Replace if it shows signs of wear or flattening. Leaks are often caused by using old, compressed O-rings.
  7. Install New Oil Filter
    Place the new oil filter into position, with the rubber O-ring facing the cap. Ensure the spring at the back of the filter is seated correctly.
  8. Reinstall Oil Filter Cover
    Position the filter cover and torque the two bolts to 9 ft-lbs; overtightening can damage the threads.
  9. Replace the Engine Guard
  10. Install New Crush Washer on Drain Bolt
    Fit a new crush washer on the drain bolt, reinstall, and tighten to manufacturer specification (usually around 18 ft-lbs, but confirm in your service manual).
  11. Add Fresh Oil
    Insert a funnel into the filler neck and add the recommended quantity of Honda 20W-50 engine oil. Pause and check the sight glass periodically to avoid overfilling.
  12. Check the Oil Level
    Wait 1-2 minutes for oil to settle, then check the level using the sight glass; top off as needed. Reinstall and secure the oil filler cap.
  13. Final Inspection and Cleanup
    Wipe away any spilled oil, start the engine, and run for 30 seconds. Recheck oil level, inspect for leaks (especially at filter cover and drain bolt), and top off if needed. Dispose of old oil/filter responsibly by taking to a recycling center.

CRF450RW–Specific Tips and Cautions

  • The 2024 CRF450RW shares its engine design with the CRF450R, including the position of the sight glass and oil filter access.
  • Repeat oil checks after your next ride, as air trapped during the change can alter the apparent oil level on the first check.
  • Always use new O-rings and crush washers to prevent leaks—these are cheap insurance against engine damage.
  • Closely monitor oil condition between changes; if oil becomes dark or smells burnt before the service interval, change it early.

Changing the oil yourself saves money, extends engine life, and gives confidence every time you ride your 2024 Honda CRF450RW. Use only top quality oil and genuine Honda filters to protect your investment.

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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.