How to Change the Oil in a 2025 GAS GAS MC 350F

Shop parts for a 2025 GAS GAS MC 350F Dirt Bike.

Regular oil changes are crucial for keeping your 2025 GAS GAS MC 350F performing at its best — ensuring smooth operation, long engine life, and reliable power delivery. Follow this MotoSport.com proprietary step-by-step guide to change the oil on your MC 350F with confidence.

Tools and Supplies Needed

  • Motorex Cross Power 4T 10W/50 full synthetic oil (1.0 liter) (OEM recommended)
  • OEM oil filter
  • Oil drain bolt crush washer
  • 8mm, 13mm, and 17mm sockets/wrenches (verify sizes for your model year in your service manual)
  • Torque wrench
  • Drain pan
  • Funnel or oil fill bottle*
  • Shop rags
  • Gloves (optional but suggested)
  • Contact cleaner or degreaser (for cleaning)
  • Needle nose pliers (for strainer removal)
  • Baffle removal tool or Bullet Proof Oil Drain Tool (optional, see call-outs below)

Before You Begin: Model-Specific Callouts

  • The MC 350F shares its engine platform with KTM/Husqvarna 350s, so techniques are similar.
  • You must use the correct oil capacity (consult your manual, generally 1.1L with filter change).
  • The oil drain plug is located beneath the engine, accessible even with most skid plates, but a drain tool can minimize mess — some aftermarket plates may require removal for easier access .
  • Do NOT overtighten drain or strainer bolts. Always use a new crush washer.
  • Check oil filter orientation — improper installation can restrict oil flow.
  • Change oil at least every 15 hours (or after severe riding conditions) .

Step-by-Step Oil Change Instructions

  1. Warm Up the Engine
    • Start the bike and let it idle for 3-5 minutes. This helps the oil drain faster and carry more contaminants out .
    • Turn bike off and place it securely on a stand.
  2. Remove the Drain Plug & Drain Oil
    • Place a drain pan under the engine.
    • With a socket or wrench, remove the main oil drain bolt (usually 13mm or 17mm) from underneath the engine. Watch for hot oil.
    • Allow oil to completely drain. Inspect the old crush washer and discard it .
  3. Remove and Clean the Oil Strainer
    • Locate the oil strainer bolt (side of the engine, 13mm or specific size).
    • Carefully remove with a wrench; some oil may spill, so keep pan in place.
    • Use needle nose pliers to gently pull out the strainer screen.
    • Check the screen for debris and gently clean it with contact cleaner. Let dry fully before reinstalling .
  4. Remove and Replace the Oil Filter
    • Locate the oil filter cover (usually secured with 8mm bolts) — on the right side of the engine.
    • Remove the bolts and the cover, then extract the old oil filter.
    • Lubricate the new filter's o-rings lightly with fresh oil and install, ensuring correct orientation.
    • Clean the filter cover and the mating surface. Reinstall cover and torque bolts to specification (usually 8-12 Nm — check manual).
  5. Install New Crush Washer and Reinstall Plugs
    • Install a new crush washer on the drain plug.
    • Torque the drain plug to spec (typically 20-25 Nm — verify in your manual).
    • Reinstall the cleaned strainer (if removed), torque to spec, and clean any oil drips.
  6. Add Fresh Oil
    • Remove the oil fill cap on top of the engine.
    • Using a funnel, pour in 1.1 liters (with filter) of Motorex Cross Power 4T 10W/50 full synthetic oil .
    • Replace the fill cap.
  7. Check Oil Level and Leaks
    • Start the engine and let it idle for 30 seconds, then shut off.
    • Check around plugs and the filter cover for leaks.
    • Wait a minute, then check the sight glass (or dipstick, if equipped) for proper oil level. Top off if needed.
  8. Dispose of Old Oil Properly
    • Bring used oil and filter to a recycling center or auto parts store.

Pro-Tips and Cautions for the 2025 MC 350F

  • Never reuse a crush washer. It will not effectively seal after being compressed.
  • Do not overfill engine — doing so can cause excessive pressure and leaks.
  • Double-check the filter's rubber seals for proper placement to avoid oil starvation.
  • If using an oil drain tool (such as Bullet Proof Designs), you can often avoid removing the skid plate and make less mess .
  • Always consult the owner's manual for up-to-date torque specs and fill quantities. Design updates between years can result in small changes .

OEM Quality Parts Make a Difference

  • Use OEM or high-quality aftermarket filter kits that fit the 2025 GAS GAS MC 350F. Kits often include the correct oil, filter, and a new crush washer in one package .

Following these steps every 10-15 hours of riding (or sooner in tough conditions) will keep your MC 350F's engine protected and running strong. For more tips, parts, and great deals, visit MotoSport.com — your authority for dirt bike maintenance and riding gear.

Related Shopping Categories

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Shop Tools for a 2025 GAS GAS MC 350F Dirt Bike.

Shop Oil Fillers and Drain Plugs for a 2025 GAS GAS MC 350F 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.