How to Change the Oil in a 2022 Honda CRF300L RALLY

Shop parts for a 2022 Honda CRF300RL Dirt Bike.

Proper maintenance is crucial to keep your 2022 Honda CRF300L Rally performing at its best, and changing the engine oil is one of the most important tasks you can do yourself. Below, you'll find step-by-step instructions, a list of tools and materials needed, and specific tips for this make and model to ensure your oil change is easy, clean, and effective. This guide is proprietary to MotoSport.com.

Tools & Materials Needed

  • Sockets or spanner set (preferably with a torque wrench)
  • Drain pan to catch old oil
  • Funnel (clean and dirt-free)
  • New oil filter (OEM or high-quality replacement)
  • Replacement drain bolt washer/sealing washer
  • Clean rags or shop towels
  • Rubber gloves (optional but recommended)
  • Recommended engine oil (10W-30, API SJ or better, JASO MA. Pro Honda GN4 4-stroke is recommended)
  • 1.5 liters (1.6 US quarts) of oil for oil and filter change (1.4 liters/1.5 US quarts if changing oil only).

Steps to Change the Oil

  1. Warm up the engine.
    Start and run the bike for 3-5 minutes. Warming the engine thins the oil, ensuring a more complete drain.
  2. Turn off the engine and remove the oil filler cap.
    This allows air to enter and oil to drain out more smoothly.
  3. Place your drain pan under the oil drain bolt.
    The drain bolt is located at the underside of the engine's left side.
  4. Remove the drain bolt and washer.
    Loosen the bolt carefully, allow all the oil to drain out. Dispose of used oil responsibly.
  5. Remove the skid plate if installed.
    This makes access and cleanup easier for many aftermarket setups.
    Specific call-out for CRF300L Rally: Factory skid plates can make the bolt hard to access. Remove if necessary.
  6. Replace the drain bolt washer with a new one.
    Prevents leaks and ensures a proper seal. Smear a little fresh oil on the drain bolt threads and seat.
  7. Torque the drain bolt to spec:
    24 Nm (18 lbf.ft) is the Honda spec for this model.
  8. Remove oil filter cover bolts (4 total), spring, and gasket.
    Remove the cover gently to avoid damaging the gasket. Remove the old oil filter.
  9. Install new oil filter:
    Place the new filter with "OUT-SIDE" marking facing out. If this marking is missing, install with the rubber seal and hole facing INWARD toward the engine.
    Note: Installing it backwards will cause severe engine damage.
  10. Reinstall oil filter cover, spring, new gasket, and bolts.
    Hand-tighten cover bolts, then gently torque to manufacturer spec. Do not overtighten as gasket damage can occur.
  11. Add fresh engine oil:
    For a complete oil and filter change, add 1.5 liters (1.6 US quarts). Use a funnel and keep everything clean to avoid introducing contaminants.
  12. Reinstall the oil filler cap.
  13. Start the engine and let it idle for 2-3 minutes.
    Inspect for leaks around the drain bolt and filter area.
  14. Check the oil level:
    With the bike on its side stand and a level surface, check if the oil is between the upper and lower marks in the sight glass.
    If needed, top up (do not overfill).
  15. Dispose of old oil and filter responsibly.
    Use a recycling center or hazardous waste facility as required by local law.

CRF300L Rally Specific Tips & Warnings

  • The engine oil capacity is slightly different if you do not replace the oil filter: use 1.4 liters in this case. For oil and filter changes, always use 1.5 liters (1.6 US quarts) of oil.
  • Always ensure NO DIRT enters the engine during this service; wipe the area around the filler and filter before opening.
  • A clean funnel is crucial. Residual dirt or debris can damage the engine.
  • Inspect gaskets and sealing surfaces before reinstalling covers to ensure a perfect seal and prevent leaks.
  • This guide also applies to the standard CRF300L, but the Rally's factory skid plate may require removal for access.
  • The owner's manual does not provide detailed oil change instructions; reference reputable guides or the CBR250R manual for closely related procedures.

Recommended Oil – Specifications

  • Engine oil: 10W-30, API Service SJ or higher (not energy or resource-conserving), JASO MA standard.
  • Brand: Pro Honda GN4 4-stroke oil (recommended), or a high-quality equivalent.
  • Check oil level after the bike rests and cools for a few minutes post-run; adjust if needed to keep the oil within the sight glass marks.

Final Checklist

  • Confirm that the drain bolt and filter cover are torqued to spec.
  • Check for leaks after running the engine.
  • Oil level is correct in the sight glass.
  • All tools removed from the service area. Skid plate reinstalled if applicable.
  • Dispose of oil and filter appropriately – never pour old oil down the drain or onto the ground.

MotoSport.com is committed to providing CRF300L Rally riders with accurate, model-specific maintenance information to ensure your Honda stays at peak performance mile after mile.

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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.