How to Change the Oil in a 2022 GAS GAS EX 450F

Shop parts for a 2022 GAS GAS EX 450F Dirt Bike.

Changing the oil in your 2022 GAS GAS EX 450F is an essential maintenance task that keeps your engine running smoothly and prolongs its lifespan. This guide from MotoSport.com walks you through everything you need to know — from tools required to specific steps and model-specific tips you won’t find anywhere else.

Tools and Supplies Needed

  • Oil change kit (Motorex Cross Power 4T 10W/50 full synthetic, 1.2 liters, OEM oil filter, drain bolt crush washer)
  • Drain pan
  • Funnel
  • Rags or shop towels
  • Contact/brake cleaner (for cleaning surfaces)
  • 10mm and 13mm wrenches or sockets
  • 5mm Allen wrench
  • Snap ring pliers (if necessary for screen removal)
  • Measuring cup
  • Rubber gloves and safety glasses
  • Torque wrench

Preparation

  • Warm up the engine for a few minutes in a well-ventilated area. Warm oil drains more completely and suspends contaminates better.
  • Turn off the ignition and make sure the motorcycle is stable and upright.
  • If fitted, remove your skid plate to access the drain plugs .
  • Clean the area around the drain plug, oil filter cover, and filler cap with a rag or contact cleaner. This helps prevent dirt from getting into your engine .

Oil Change Steps

  1. Locate and Remove Drain Plugs:
    • Your EX 450F has three oil change points: the main drain plug (usually 13mm), an oil screen cover (5mm Allen), and a second oil screen/magnet (also 13mm) .
    • Place the drain pan underneath and carefully loosen all three plugs. Remove the main drain plug first, then both screens to allow oil to flow freely and drain fully.
    • Allow several minutes for complete drainage.
  2. Clean and Inspect Oil Screens:
    • Inspect both oil screens. Clean them using contact cleaner and inspect for debris or metal filings. Some fine metal is normal, especially on new bikes. Excessive shavings may indicate internal wear .
  3. Replace Filter and Crush Washer:
    • Using the 10mm wrench, remove the oil filter cover. Remove the old oil filter and replace it with a new OEM filter. Use a new crush washer with the drain bolt .
  4. Reinstall Plugs and Screens:
    • Reinstall the main drain bolt with the new crush washer. Reinstall both oil screens. Tighten to manufacturer torque specs: 14.8 ft-lb (main drain magnet), and 11.1 ft-lb (each screen bolt) .
  5. Add New Oil:
    • Using a funnel, pour in 1.2 liters of Motorex Cross Power 4T 10W/50 through the oil filler opening .
    • Replace the filler cap and wipe away spills.
  6. Start and Check:
    • Start your bike and let it idle for 1–2 minutes. Inspect the drain plug and oil filter area for leaks.
    • Shut off engine and let the bike sit for a minute, then check the oil level with the inspection window or dipstick. Top off if needed.

2022 GAS GAS EX 450F Specific Call-outs

  • Oil Capacity: 1.2 liters — do not overfill.
  • Use only full synthetic 10W/50 oil as recommended by GAS GAS. Avoid mixing brands or oil types .
  • Both oil screens must be cleaned at each oil change, not just the main drain plug .
  • The EX 450F oil change procedure is nearly identical to KTM and Husqvarna 450/500F of similar years, but always refer to your owner’s manual for torque specs and drain locations .
  • For engines in break-in period, expect a small amount of metal on the screens during first few changes .
  • If riding extensively in sandy or muddy environments, inspect and potentially change oil more often .

Pro Tips

  • Always dispose of old oil and filters in accordance with local environmental regulations.
  • Stick to maintenance intervals per the GAS GAS manual. For heavy or competitive use, replace oil more often.
  • Keep a maintenance log with the date, hours, and what was replaced.

Related Shopping Categories

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Shop Tools for a 2022 GAS GAS EX 450F Dirt Bike.

Shop Oil Fillers and Drain Plugs for a 2022 GAS GAS EX 450F 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.