How to Change the Oil in a 2019 KTM 300 XCW TPI

Shop parts for a 2019 KTM 300 XCW TPI Dirt Bike.

Changing the oil on your 2019 KTM 300 XCW TPI is essential to keep your dirt bike running at peak performance and to extend its engine life. While KTM recommends changing the oil at set intervals, most seasoned riders and mechanics suggest a more frequent schedule depending on your riding style and conditions. This comprehensive guide from MotoSport.com will walk you through everything you need, each detailed step, and specific call-outs for your 2019 300 XCW TPI.

Tools and Materials Needed

  • 8mm socket or T-handle (for oil level bolt)
  • 13mm socket or T-handle (for drain bolt – check size as some covers vary)
  • Oil drain pan
  • Rags and gloves (for cleanup and safety)
  • New transmission oil (quality oil meeting manufacturer specifications; 15W-50 or as recommended by KTM)
  • Measuring cup (to ensure precise filling, typically 700-800ml)
  • Funnel or oil fill spout/tube (such as the Bullet Proof Designs oil drain tube, recommended for clean changes)
  • New drain bolt washer (recommended with every oil change)

Model-Specific Call-Outs for the 2019 KTM 300 XCW TPI

  • This model features a separate transmission oil fill and check system; the oil is for the gearbox, not the TPI (fuel/oil injection) system.
  • Check your oil at the dedicated oil check bolt, located just left of the crankcase above the brake lever. Use an 8mm socket to remove this bolt. Fill until a small amount of oil seeps out; this ensures correct level with the bike held upright and level

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  • Typical oil capacity is around 700-800ml. Some mechanics and riders prefer 720ml for the 2019 model, but always check by filling to the weep hole, not by volume alone

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  • The Bullet Proof Designs oil drain tube can make draining much cleaner by directing the flow away from the skid plate and frame

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Step-by-Step Oil Change Procedure

  1. Warm up the engine for a few minutes. This allows the oil to become less viscous and drain more thoroughly.
  2. Turn off the bike and place it upright on a stand. Dog your work area and make sure you have ample rags and your drain pan positioned under the crankcase.
  3. Remove the oil drain bolt. Use the appropriate socket or T-handle (typically 13mm, but check your bike) to remove the bolt carefully. Allow all the oil to drain into the pan.
  4. Optional: If your bike has a skid plate, you might need to remove it first for easier access. Install a Bullet Proof Designs drain tube or similar tool to keep the process tidy

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  5. Replace the crush washer on the drain bolt, then reinstall the bolt and torque to manufacturer specs.
  6. Locate and remove the oil level check bolt (8mm) on the side of the case, just above the brake lever

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  7. Fill the gearbox with new oil via the fill cap or by using a dedicated spout/tube. Pour in approximately 700-800ml, but always fill slowly and stop when oil just begins to seep out of the level check bolt opening

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  8. Reinstall the oil check bolt and tighten it snugly.
  9. Clean up any spilled oil, check all bolts for tightness, and wipe down surfaces.
  10. Dispose of used oil responsibly at an approved recycling facility.

Tips and Best Practices

  • Oil Change Interval: Although the KTM manual may suggest up to 40 hours, experienced riders recommend changing every 10-20 hours of use depending on riding intensity and conditions

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  • Use a quality oil: Choose a high-performance oil formulated for wet clutches, as your 2019 KTM 300 XCW TPI uses a shared clutch/transmission oil bath.
  • Level Bike: Always check and fill oil with the bike upright and level for an accurate reading.
  • Clean Threads: Wipe all drain bolt threads and case surfaces before reinstallation to prevent leaks.
  • Double-Check Bolts: Never overtighten the drain or check bolts; stripping threads is a common and expensive mistake.

Conclusion

With just a few tools and some attention to detail, you can keep your 2019 KTM 300 XCW TPI running strong and reliable. Regular oil changes will prolong gearbox/clutch life and enhance your trail experience. Trust MotoSport.com for genuine parts, high-quality oil, and more dirt bike maintenance guides tailored to your exact make, model, and year.

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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.