How to Change the Oil in a 2019 KTM 300XC: Step-by-Step Guide

Shop Parts for a 2019 KTM 300XC Dirt Bike.

Changing the oil in your 2019 KTM 300XC is a vital maintenance task that ensures your dirt bike performs at its best on and off the trail. This guide, proprietary to MotoSport.com, will walk you through the process with detailed instructions, highlight any model-specific call-outs, and supply a comprehensive list of the tools you’ll need. Set aside about 30–45 minutes for the whole process.

Tools & Supplies Needed

  • Drain pan (to collect old oil)
  • 8mm socket or T-handle wrench (for the oil level bolt)
  • 13mm socket or T-handle wrench (for drain bolt – confirm bolt head fits your aftermarket parts, if installed)
  • Funnel or oil bottle with spout (to pour new oil)
  • Rag or shop towels (for cleanup)
  • Transmission oil (recommended: 10W-50, 15W-50, or per the owner’s manual)
  • Torque wrench (if you wish to torque bolts to spec)
  • Bullet Proof Designs oil drain tube (optional, but keeps things tidy and is highly recommended for this model)

Before You Begin

  • Start the engine and let it idle for about 2 minutes, or ride gently so the oil is warm (not hot), which helps it drain more completely.
  • Set the bike upright and level, using a bike stand for stability. Having the bike level is crucial for accurate oil measurement and complete drainage.

Step-by-Step Procedure

  1. Remove the Skid Plate, if Installed:
    • If you have an aftermarket skid plate, remove it as it may block access to the drain plug.
  2. Locate the Oil Drain Bolt:
    • The drain bolt is on the right side of the engine case, below the clutch cover.
      Tip: If you have a Bullet Proof Designs oil drain tube, now’s the time to attach it to the drain port, as it will help route oil straight into your drain pan, minimizing mess.
  3. Drain the Old Oil:
    • Position your drain pan beneath the drain bolt.
    • Using a 13mm socket or T-handle, carefully remove the drain bolt. Watch for the oil to begin flowing out. Allow a minute or two for all oil to drain.
    • Inspect the old oil for any metal shavings or signs of damage.
    • Inspect and clean the drain bolt; replace the crush washer if it shows any signs of wear.
  4. Reinstall the Drain Bolt:
    • Once the oil has stopped draining, clean the area.
    • Reinstall the drain bolt and torque it to the manufacturer’s specification (consult your owner’s manual, typically around 10 Nm/7.3 ft-lbs for KTM two-strokes).
  5. Locate and Remove the Oil Fill Cap:
    • The oil fill cap is located above the right side engine case, above the brake lever.
    • Remove the cap and set it aside (wipe the area to prevent dirt contamination).
  6. Add New Oil:
    • Insert a funnel or the end of your oil bottle’s spout into the oil fill hole.
    • Add oil slowly. The 2019 KTM 300XC is specified for approximately 700–750ml (check your manual for your riding style; trail riders commonly use 700–750ml for smooth clutch engagement).
    • Do not guess; it’s best to measure carefully using a measuring cup or the markings on the bottle.
      Pro Tip: Do not overfill. Too much oil can cause excessive pressure and leaks.
  7. Check Oil Level:
    • With the bike level, locate the oil level check bolt (8mm) just above the brake lever on the right side.
    • Loosen (do not remove) the level check bolt. Oil should just barely begin seeping out; otherwise, add more oil a little at a time.
    • If oil pours out, you’ve overfilled—let it drain until only a slight seep is observed.
    • Tighten the oil level bolt to specification (around 5 Nm/3.7 ft-lbs).
  8. Reinstall the Oil Fill Cap:
    • Ensure the cap and fill area are clean, then reinstall the cap securely by hand.
  9. Clean Up & Final Check:
    • Check under the bike for leaks, wipe away any oil residue, and reattach the skid plate if removed.

2019 KTM 300XC-Specific Call-Outs and Tips

  • Change Interval: Trail riders generally change transmission oil every 20 hours or sooner depending on conditions and riding style. Do not exceed KTM’s recommended interval, but more frequent changes will extend gearbox life.
  • Bullet Proof Designs Oil Drain Tube: This accessory is very useful for a clean, mess-free oil change on this model.
  • Oil Volume: While the owner’s manual may reference several fill amounts, real-world owner reports and practical wisdom suggest 700–750ml for the 2019 300XC. Check by using the level bolt rather than relying solely on numbers.
  • Engine Stand: Always perform the oil level check with the bike upright and level to ensure accuracy.

Conclusion

Changing the oil in your 2019 KTM 300XC is straightforward if you have the right tools and a systematic approach. Regular oil changes keep your bike shifting smoothly and protect your transmission from premature wear. For best performance and longevity, always use the recommended oil type, use precise fill amounts, and stick to a consistent maintenance schedule for every ride.

Need parts or more helpful KTM tips? MotoSport.com has everything you need for your KTM and more.

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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.