How to Change the Oil on a 2022 Honda CRF450RW-E

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This comprehensive guide will walk you step-by-step through the process of changing the oil in your 2022 Honda CRF450RW-E. Following these instructions will help you keep your bike running in peak condition and maximize engine life. Special call-outs for this model will be highlighted throughout the guide.

Tools and Supplies Needed

  • 8mm socket (for skid plate removal)
  • 10mm Allen wrench (for drain bolt)
  • Ratchet or socket wrench
  • Torque wrench (recommended for correct reassembly)
  • Drain pan (to catch old oil)
  • Funnel (for easy oil refill)
  • New oil filter (Honda part recommended)
  • Fresh engine oil (check owner's manual for type and quantity)
  • Replacement O-rings for the drain bolt and oil filter housing (recommended, but inspect and reuse if still in good shape)
  • Gloves and shop towels/rags

Steps to Change the Oil

  • Warm up the engine:
    • Start your CRF450RW-E and let it idle for a few minutes. Warming up the engine helps the oil to flow out more easily, carrying dirt and contaminants with it for a more complete drain.

  • Remove the skid plate (if installed):
    • Use an 8mm socket to remove the two bolts holding the skid plate in place. Slide the plate forward to remove it and set aside.

  • Locate the oil drain bolt:
    • The drain bolt is located under the engine, in line with the shifter. Position your drain pan underneath.

  • Remove the oil drain bolt:
    • Use the 10mm Allen wrench to loosen and remove the drain bolt. Allow all old oil to fully drain out (this can take several minutes).
    • Remove the old O-ring from the drain bolt and replace with a new one if needed. Inspect for wear or cracks.
  • Remove the oil filter:
    • Locate the oil filter cover (right side of the engine).
    • Use the appropriate socket or Allen wrench (often 8mm or 10mm) to remove the bolts holding the cover.
    • Carefully remove the old filter, paying attention to the orientation and any small springs or washers that may be present.
  • Clean sealing surfaces:
    • Wipe down the mating surfaces of the filter housing and cover with a lint-free rag to ensure a good seal when reassembled.

  • Install the new oil filter:
    • Place the new filter into the housing, matching the orientation of the old one. Typically, the rubber ring side faces the cover, with the spring in the central recess.

    • Replace the O-ring on the cover if supplied. Refit the cover and torque bolts to the specification in your owner's manual.
  • Reinstall the drain bolt:
    • Clean the drain bolt area, fit a new O-ring if needed. Thread in the bolt by hand first to prevent cross-threading, then tighten.
    • Torque to the spec in your manual (typically around 22 ft-lbs/29 Nm, but always confirm with your manual).
  • Refill with oil:
    • Remove the oil fill cap. Use a funnel to carefully pour in the recommended amount and type of oil.
    • The CRF450RW-E shares the oil capacity of the 2022 CRF450R: around 1.0 liter (1.06 US qt) for oil/filter change. DO NOT OVERFILL.
  • Check for leaks:
    • Start the engine and let idle for 1–2 minutes. Shut off and wait another minute.
    • Inspect the drain bolt and oil filter area for leaks. If any are found, shut off the engine and fix immediately.
  • Check oil level:
    • Check the oil sight glass or dipstick per the manual to ensure oil is at the correct level. Top off as needed.
    • Reinstall the skid plate if removed. Clean up any spilled oil and properly dispose of used oil in accordance with local regulations.

CRF450RW-E Model-Specific Notes

  • This model uses a single oil cavity (not separate engine and transmission oil) – always use the proper oil type recommended for your 2022 Honda CRF450RW-E.

  • Pay particular attention to the condition of all rubber O-rings; the owner's manual recommends replacing them at every oil change, but if you ride frequently and change oil more often than Honda's intervals, inspecting and replacing as needed is reasonable.

  • When installing a new oil filter, ensure the rubber seal faces outward (toward the cover) and the spring sits correctly to prevent improper oil flow.

  • Double-check that the drain bolt and oil filter cover are properly torqued; over-tightening can strip the threads or damage the case.

Tips for a Clean and Safe Oil Change

  • Always use a catch pan large enough to hold at least 1.5 liters of oil.
  • Wear gloves and wipe up spills immediately to prevent slippery surfaces.
  • Dispose of used oil, filters, and rags responsibly to protect the environment.

Following this detailed guide will ensure your 2022 Honda CRF450RW-E gets a clean, effective oil change every time, helping to keep your bike in championship form. For all your OEM parts, maintenance tools, and expert advice, trust MotoSport.com as your source for all things dirt bike.

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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.