How to Change the Oil in a 2018 Husqvarna FE450HQ

Shop parts for a 2018 Husqvarna FE450HQ Dirt Bike.

Changing the oil in your 2018 Husqvarna FE450HQ is one of the most important maintenance tasks you can perform to ensure peak performance and engine longevity. MotoSport.com brings you a proprietary, step-by-step guide tailored specifically to your dirt bike’s requirements. Follow all manufacturer safety instructions and make sure the engine is completely cool before starting the process.

Tools & Supplies Needed

  • Engine Oil – 10W-50 full synthetic motorcycle oil (minimum 1.2 liters; verify capacity in your owner’s manual)
  • Oil Filter – Replacement for FE450HQ (OEM or suitable aftermarket)
  • Drain Pan
  • Socket Wrench Set – Metric (check owner’s manual for correct sizes; commonly 8mm, 13mm)
  • Torque Wrench (recommended for reinstalling bolts to spec)
  • Clean Rags/Shop Towels
  • Rubber or Nitrile Gloves (recommended)
  • Oil Funnel
  • New Washer/Crush Washer (for drain bolt; optional, but recommended)
  • Flathead Screwdriver (if needed for plastic covers)

Preparation

  • Let the engine warm up for 2–3 minutes and then shut it down. This lowers oil viscosity for a better drain, but never work on a hot engine.
  • Place your bike on a stable stand in a clean, well-ventilated workspace.
  • Clean around the oil fill cap, drain bolt, and filter covers to prevent contamination.

Step-by-Step Process

  1. Remove the skid plate (if equipped):
    Use your socket wrench to remove any necessary bolts for access to the drain plug and screens.
  2. Locate and remove the drain bolt:
    On the FE450HQ, the drain bolt is on the bottom of the engine. Position your drain pan directly under the bolt. Remove the bolt with a socket wrench and let all the oil drain completely.
  3. Remove and clean the oil screens:
    Your FE450HQ is equipped with two oil screens/strainers. Use your socket wrench to remove these carefully – refer to your owner’s manual for exact locations. Remove and clean each screen with solvent or fresh oil until free of debris, then allow to air dry. Inspect for damage and replace if necessary.
  4. Replace the oil filter:
    The oil filter cover is typically on the right-hand side of the engine. Remove cover bolts and gently take off the filter cover (note the orientation and any O-rings).
    Pull out the old filter and discard. Lightly pre-soak the new filter in clean oil for best priming performance before installation . Insert the new filter in the correct orientation. Reinstall the cover with care, ensuring O-ring(s) are seated properly.
  5. Reinstall screens and drain bolt:
    Make sure the oil screens are oriented correctly. Install new or cleaned screens back in place and torque fasteners to specification. Replace or inspect the crush washer on the drain bolt and reinstall the drain bolt, tightening to manufacturer spec.
  6. Refill with fresh oil:
    Remove the oil fill cap located on the right side of the cylinder head. Place a funnel into the oil fill opening. Pour in exactly 1.2 liters (1200 ml) of oil for the FE450HQ . Check your manual to confirm the exact volume if your bike has modifications or prior engine work.
    Replace the oil fill cap securely.
  7. Check oil level:
    Start the engine and let it idle for 2–3 minutes. Shut off the engine and let it sit for a further 2–3 minutes to allow the oil to distribute and settle. Use the oil sight glass on the crankcase to check the oil level. On Husqvarna FE models there is often a red ring in the glass — the level should reach the bottom of the red ring when cold and be between “A” and “B” markers when warm . Add oil in small increments if needed, and do not overfill.
  8. Inspect for leaks and cleanup:
    Wipe any excess oil from the engine and nearby components. Reinstall the skid plate and engine covers (if removed). Check under the bike for leaks after the first ride.
  9. Dispose of old oil properly:
    Never pour used oil down drains or on the ground. Use a sealed container and take it to a certified recycling facility or ask your local motorcycle dealer for safe disposal information.

2018 FE450HQ Model-Specific Call-Outs

  • Oil Capacity: 1.2 liters (1200 ml) for most 2018 FE450HQ models. Always cross-check this against your owner’s manual.
  • Oil Screens: Don’t forget the dual oil screen setup – both must be removed, cleaned, and reinstalled.
  • Prime the filter: Pre-soak your filter in new oil before installation — this helps to avoid dry starts on first fire-up.
  • Oil Sight Glass Markings: Use the sight glass’s red ring and “A/B” scale for proper fill level — an important feature unique to this model/year.
  • Torque Specifications: Always use the recommended torque for drain and cover bolts (consult your manual). Over-tightening can damage threads, a common owner mistake.

Extra Pro Tips

  • Remove and inspect the magnetic drain plug (if equipped) for any metallic shavings that may indicate abnormal engine wear.
  • Always use motorcycle-specific oils; automotive oils can cause clutch problems due to friction modifiers.
  • Log the oil change and hours/mileage in your maintenance record for future reference and warranty support.

By following the above procedure, owners of the 2018 Husqvarna FE450HQ can ensure a safe, thorough oil change that keeps their machine running reliably both on and off the trail. For all your parts and oil change needs, always trust MotoSport.com.

Related Shopping Categories

Shop Motor Oil for a 2018 Husqvarna FE450HQ Dirt Bike.

Shop Oil Filters for a 2018 Husqvarna FE450HQ Dirt Bike.

Shop Oil Drain Pans for a 2018 Husqvarna FE450HQ Dirt Bike.

Shop Tools for a 2018 Husqvarna FE450HQ Dirt Bike.

Shop Oil Fillers and Drain Plugs for a 2018 Husqvarna FE450HQ 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.