How to Change the Oil in a 2018 GAS GAS XC250R

Shop parts for a 2018 GAS GAS XC250R Dirt Bike.

Regular oil changes are essential to keep your 2018 GAS GAS XC250R running smoothly and reliably, especially for high-performance off-road riding. This comprehensive guide—proprietary to MotoSport.com—covers everything from the tools you’ll need, step-by-step procedures, and important call-outs specific to this model.

Tools and Materials Needed

  • 13mm socket or box wrench (for the drain bolt)
  • T30 Torx bit (for some side cover bolts if applicable)
  • Drain pan
  • Rags or shop towels
  • Contact cleaner (quick-drying, non-residue)
  • Oil filter (OEM or equivalent, check your manual)
  • Fresh engine oil (consult your manual for quantity and type, typically 10W-40 or 10W-50 full synthetic for off-road)
  • Funnel
  • Crush washer (for drain bolt, replace every oil change if possible)
  • Pliers (to remove the oil filter if stuck)
  • Torque wrench (recommended for drain bolt and case bolts)

Step-by-Step Oil Change Instructions

  1. Warm Up the Engine
    • Run your XC250R for 3-5 minutes. This heats the oil, allowing it to drain quickly and completely. Shut off the bike and let it cool just enough to handle comfortably.
  2. Position the Bike Securely
    • Place your bike on a stand that gives access to the drain bolt. Avoid stands that cover access to the drain plug—side stands or adjustable dirt bike stands are ideal .
  3. Remove the Drain Bolt
    • Locate the 13mm drain bolt on the underside of the engine. Place your drain pan beneath and use your socket or wrench to loosen and remove the bolt. Be ready for hot oil.
    • Inspect the drain bolt magnet: The GAS GAS drain bolt has a magnetic tip to catch metal shavings . Wipe it clean and check for large particles (a little fine dust is normal on a new engine).
    • Remove and discard the old crush washer if present.
  4. Drain the Old Oil
    • Allow the oil to drain fully—tip the bike slightly toward the drain side if necessary for a more complete drain.
  5. Clean and Replace Filter
    • Find the oil filter cover (typically held with T30 Torx or 8mm bolts, check your model). Remove the bolts and then the cover.
    • Pull out the old oil filter: If stuck, use pliers gently . Inspect it for metal debris.
    • Clean the filter cavity with a rag and contact cleaner . Inspect and lightly oil the new filter’s O-ring before installing.
    • Install the new filter, replace the cover, and torque the bolts to spec (consult your manual, usually 7-10 Nm).
  6. Clean the Oil Screen (if equipped)
    • Some GAS GAS models have an oil screen accessible near the drain plug . Remove it, clean with contact cleaner, and inspect for metal shavings. Replace the screen and torque its bolt per the manual.
  7. Reinstall the Drain Bolt
    • Fit a new crush washer on the bolt. Reinstall and torque to manufacturer spec, typically around 14-15 ft-lbs (20 Nm) . Be careful not to overtighten.
  8. Refill with Fresh Oil
    • Check bike manual for oil quantity—most 250cc two-strokes require about 650-750 ml, but verify for the XC250R.
    • Using a funnel, pour in the new oil. Reinstall and snug the oil fill cap.
  9. Check for Leaks and Oil Level
    • Start the engine and let it idle for 1-2 minutes. Shut down, let the oil settle for a minute, and check the oil level sight glass or dipstick.
    • Check around the drain bolt and oil filter for leaks. Top off oil as necessary.
  10. Final Inspection
    • Wipe away excess oil from the engine and frame. Safely dispose of your used oil and filter according to local laws.

Specific Notes for 2018 GAS GAS XC250R Owners

  • Access: The drain bolt is centrally located but may be partially obstructed depending on your skid plate—pre-check for tools clearance.
  • Filter Orientation: Ensure the new oil filter is installed with the correct orientation (open end toward the engine is typical, but check your manual or old filter).
  • Magnetic Drain Bolt: Regularly check for metal shavings after initial break-in period. An increasing amount after every change may indicate internal wear .
  • Stand Selection: Avoid conventional stands that block the drain plug; use a flat stand or lean the bike for thorough draining .
  • Factory Torque Values: Always follow your model’s recommended torque specs and avoid overtightening the soft aluminum cases .
  • Break-in Oil: After the initial break-in period, always use the recommended full synthetic oil for superior clutch and gearbox protection specific to two-strokes.

Pro Tips for a Cleaner, Easier Oil Change

  • Loosen the fill cap before draining to allow quicker and more complete draining by allowing air in.
  • Use only clean containers and funnels to avoid contaminating your fresh engine oil.
  • If your bike has a sight glass, check the oil level on a level surface after the engine has run and settled for a minute.

Conclusion

By following this oil change procedure on your 2018 GAS GAS XC250R, you ensure optimal engine health, gearbox longevity, and reliable performance on every MotoSport.com adventure. When in doubt, always consult your owner's manual for oil type, filter part numbers, and torque specifications unique to your bike. Ride safe.

Related Shopping Categories

Shop Motor Oil for a 2018 GAS GAS XC250R Dirt Bike.

Shop Oil Filters for a 2018 GAS GAS XC250R Dirt Bike.

Shop Oil Drain Pans for a 2018 GAS GAS XC250R Dirt Bike.

Shop Tools for a 2018 GAS GAS XC250R Dirt Bike.

Shop Oil Fillers and Drain Plugs for a 2018 GAS GAS XC250R Dirt Bike.

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.