How to Change the Oil in a 2022 GAS GAS MC 65: Step–by–Step Guide

Shop parts for a 2022 GAS GAS MC 65 Dirt Bike.

Changing the oil in your 2022 GAS GAS MC 65 is an essential maintenance task that keeps your dirt bike running smoothly and extends the life of your engine. This detailed how-to guide, proprietary to MotoSport.com, will walk you through every step, including specific call-outs for the MC 65 model. Always follow all recommended safety precautions and consult your owner's manual for best results.

Tools and Supplies Needed

  • 13mm Socket (shallow, 3/8” drive preferred) – Makes it easier to access the drain plug behind the shifter without removing the shifter itself.
  • 3/8” Ratchet and Extension
  • Oil Catch Pan
  • High-Quality Gear Oil – GAS GAS recommends 15W-50 (Motorex is OE specification), but other reputable brands such as AMSOIL Dominator Racing Oil are also used. Check your owner's manual for specific recommendations.
  • Measuring Container – To measure exactly 500ml of oil.
  • Clean Rag or Paper Towels
  • Fresh O-Ring (optional but recommended) – To replace the drain plug O-ring if it shows signs of wear or damage.
  • Torque Wrench (recommended) – For reinstalling the drain bolt to factory specifications.

Pre-Change Checklist

  • Warm up the engine for a few minutes to help the oil flow out more smoothly and carry away contaminants.
  • Place the bike securely upright on a suitable stand. Make sure you can access the drain plug from the left side, behind the shifter.
  • Lay out all your tools and new oil before you begin.

Step–by–Step Oil Change Instructions

  1. Warm Up the Bike
    • Idle the bike for approximately 3–5 minutes to thin the oil and help it drain completely. Do not overheat.
  2. Remove the Drain Plug
    • Locate the drain plug on the left side of the bike, directly behind the shifter.
      Use the 13mm shallow socket and 3/8” ratchet, possibly with an extension, to loosen and remove the drain plug.
      Tip: Using a shallow socket is crucial here, as a deep socket may not fit the tight space — this is unique to the MC 65's compact design.
  3. Drain the Old Oil
    • Set your catch pan directly underneath the drain hole.
      Allow the oil to drain completely. This process can take several minutes.
      Check the color and condition of the oil to ensure there are no metal shavings or debris, which could indicate excessive engine wear.
  4. Inspect and Replace the Drain Plug O-ring
    • Remove the old O-ring from the drain plug and inspect for cracks or flattening.
      Replace with a new O-ring as needed to prevent future leaks. Lubricate the new O-ring lightly with clean oil.
  5. Reinstall the Drain Plug
    • Clean the drain plug threads and the area around the drain. Reinstall the plug by hand to avoid cross-threading, then tighten to the manufacturer's specified torque setting using a torque wrench if available.
  6. Measure and Add New Oil
    • Measure out exactly 500 ml (0.53 quarts) of fresh gear oil, as this is the precise capacity for the MC 65 (2022).
      Use a funnel if necessary to refill, pouring slowly to avoid spills.
  7. Check Oil Level and Leaks
    • With the bike upright and level, use the sight glass or dipstick (depending on version/year) to verify the oil level.
      Start the engine and let it idle for 1–2 minutes. Turn the engine off and recheck the oil level, topping off if necessary.
      Inspect the drain plug and area underneath for any signs of leaks.
  8. Dispose of Old Oil Responsibly
    • Take your used oil to a designated recycling facility or your local MotoSport shop for responsible disposal.

Key Model–Specific Call-Outs for the GAS GAS MC 65 (2022)

  • Drain Plug Location: The plug is tightly tucked behind the shifter; use a shallow socket to avoid removing the shift lever entirely.
  • Oil Type and Amount: Always use 500ml of 15W-50 high-quality gear oil. Over– or under–filling can lead to clutch or transmission issues.
  • O-Ring Maintenance: It's good practice to replace the O-ring on the drain plug each oil change to prevent leaks — readily available in universal packs.
  • Shared Platform Note: The engine oil system is nearly identical across 2021–2024 KTM 65 SX, Husqvarna TC 65, and GAS GAS MC 65 models. Guides for these models typically directly apply to the 2022 MC 65.

Common Tips and Troubleshooting

  • Don't Over–Tighten: Stripping the aluminum threads on the case can lead to costly repairs. Use manufacturer torque specs.
  • Double-check after your first short ride for any leaks at the drain plug.
  • Consider cleaning the area around the drain plug before loosening to avoid letting debris fall into the crankcase.

Regular oil changes are the best way to keep your 2022 GAS GAS MC 65 in top condition. MotoSport.com stocks all the recommended oils, O-rings, and specialized tools needed for this job, so you can ride confidently every time.

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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.