How to Change the Oil in a 2023 GAS GAS MC 450F

Shop parts for a 2023 GAS GAS MC 450F Dirt Bike.

Keeping up with routine oil changes helps ensure your 2023 GAS GAS MC 450F runs smoothly, maintains peak performance, and maximizes engine life. Here’s a proprietary step-by-step guide from MotoSport.com that covers all you need to know—tools, parts, key steps, and specific tips for this model.

Tools and Parts Needed

  • 1.2 liters of 10W-50 full synthetic four-stroke motorcycle oil (Motorex Cross Power 4T is recommended)
  • OEM oil filter
  • New crush washer for the oil drain bolt
  • Drain pan to catch used oil
  • 8mm T-handle or socket/wrench
  • 13mm socket or wrench
  • 5mm Allen wrench (if required)
  • Pliers (optional, for removing the oil filter)
  • Clean rags
  • Gloves and safety glasses
  • Contact cleaner (optional, for cleanup)
  • Measuring cup (for accurate oil fill)

Preparation

  • Warm up the engine by running your MC 450F for about 3–5 minutes. This helps the oil flow out easier and brings suspended contaminants with it.
  • Turn off the ignition and ensure the motorcycle is on a stable stand. Avoid “normal” flat stands that block access to the drain bolt—side stands or moto lifts work better for the MC 450F.

Oil Change Steps

  1. Remove the Skid Plate (if equipped):
    • Unscrew or unclip the skid plate to expose the underside of the engine and the drain plugs.
  2. Clean the Drain Bolt Area:
    • Use a rag to wipe dirt away from the drain bolt and area around the oil filter cover, preventing contamination during removal.
  3. Drain the Old Oil:
    • Place your drain pan securely under the bike. Locate the main oil drain bolt on the bottom of the engine case.
    • Use a 13mm socket or wrench to loosen the drain bolt. Let oil drain completely. Take care, as oil will be hot.
    • If equipped, also remove the oil screen covers as described in your owner’s manual for full drainage and cleaning.
  4. Remove and Inspect the Oil Filter:
    • Use your 8mm T-handle or socket to remove the two bolts from the oil filter cover (on the right side of the engine).
    • Gently pull out the old oil filter. Pliers can help if it’s stuck, but be careful not to damage the housing.
    • Inspect the filter for excessive metal particles–a sign of potential internal issues.
  5. Replace the Oil Filter and Crush Washer:
    • Lightly oil the new filter, then insert it into the housing.
    • Install the new crush washer onto the cleaned drain bolt.
  6. Clean and Reinstall Oil Screens (if applicable):
    • If your model has oil screens, remove, inspect, and clean them with contact cleaner. Reinstall securely.
  7. Reinstall the Drain Bolt and Oil Filter Cover:
    • Tighten the drain bolt with new crush washer to manufacturer’s torque specification (see your manual).
    • Reinstall and tighten the oil filter cover bolts evenly.
  8. Add New Oil:
    • Remove the oil fill cap.
    • Use a measuring cup and funnel to pour in 1.2 liters of 10W-50 full synthetic oil.
    • Replace the fill cap securely.
  9. Check for Leaks and Final Oil Level:
    • Start the engine and let it idle for a minute, then turn off.
    • Inspect around the drain bolt, filter cover, and fill cap for leaks.
    • Check the oil level again and top off if necessary.
  10. Reinstall the Skid Plate (if removed) and Clean Up:
    • Discard old oil responsibly at a recycling center or authorized collection point.

Model-Specific Call-Outs for the 2023 GAS GAS MC 450F

  • Correct Quantity: The MC 450F requires 1.2 liters of oil for a full change including the filter. Do not overfill.
  • Recommended Oil: Use only high-quality synthetic oil such as Motorex Cross Power 4T 10W/50 to match factory specification and maintain warranty compliance.
  • Oil Screen Cleaning: The 450F features one or two oil screens that should be inspected and cleaned at every oil change to capture debris that the oil filter might miss. Refer to your owner’s manual for specific locations and removal instructions.
  • Crush Washer: Always replace the crush washer on the drain bolt to avoid leaks.
  • Oil Filter Access: Ensure you have an 8mm wrench or socket for the oil filter cover bolts. Do not overtighten.
  • Proper Stand: Due to the drain bolt location, avoid using conventional dirt bike stands that block access. An open-bottom moto lift or side stand works best for access and proper drainage.
  • Break-In and First Oil Change: For brand new bikes, the first oil change should come early (see owner's manual) to remove any manufacturing debris.

Tips for a Successful Oil Change

  • Allow extra time for oil to fully drain when the engine is warm.
  • Inspect every removed part for excessive wear or particles.
  • Clean as you go so dirt doesn’t enter your engine.
  • Stick to the recommended torque values from the official GAS GAS manual (available online for reference) to avoid over-tightening.
  • Record your oil change and mileage for future reference.

Changing your GAS GAS MC 450F's oil is a straightforward but essential maintenance task. Follow these steps and your bike will reward you with lasting performance on every MotoSport.com adventure.

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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.