How to Change the Oil in a 2018 Husqvarna FE250 HQ

Shop parts for a 2018 Husqvarna FE250 HQ Dirt Bike.

Maintaining your 2018 Husqvarna FE250 HQ and performing regular oil changes is essential for peak performance and long-term durability. This comprehensive, MotoSport.com proprietary guide will walk you step-by-step through the oil change process—covering the specific needs of your dirt bike, pointing out key callouts, and including the essential tools for the job.

Tools and Supplies Needed

  • Sockets: 8mm, 13mm, and 6mm Allen
  • Socket wrench (or T-drive)
  • Drain pan
  • Oil filter (OEM or high-quality aftermarket for FE250 HQ)
  • New crush washer for drain bolt (advised every change)
  • Funnel
  • Measuring cup or bottle with measurement marking
  • Shop towels
  • Engine oil: Confirm spec in owner’s manual; common for FE-series: Motorex Cross Power 4T 10W-50 full synthetic
  • Nitrile gloves (for less mess)
  • Torque wrench (recommended for reinstalling bolts)

Model-Specific Callouts for the 2018 Husqvarna FE250 HQ

  • Oil Capacity: Approximately 1.2 liters (1200 mL). Always check your manual for exact specs.
  • Sump Design: The FE250 uses a split oil circuit (engine and gearbox, sometimes with two drain bolts and mesh filters–check both for your region’s model).
  • Drain Bolts/Filter Screws: Two drain bolts–main sump (front of case) and an auxiliary bolt (lower frame near the oil screen), plus oil screens and a replaceable oil filter behind the right-side engine cover.
  • Service Interval: After the first hour or break-in, then approximately every 15 hours of operation or after any race condition. Aggressive use or dusty environments may require shorter intervals.
  • Sight Glass: Use the small window on the right crankcase to check oil level once filled and cycled.

Step-by-Step Oil Change Instructions

  • 1. Prepare the Bike
    • Start the engine and let it idle for 3–5 minutes to warm up the oil—this helps the oil drain thoroughly.
    • Turn off the engine and place the bike securely on a stand or level surface.
    • Remove the skid plate if equipped (usually 8mm bolts).
  • 2. Drain the Old Oil
    • Place a drain pan under the main drain bolt.
    • Use a 13mm socket or 6mm Allen to remove the main oil drain bolt—be cautious, oil may be hot.
    • While oil is draining, remove the auxiliary drain bolt (if equipped on your FE250 HQ), typically under the engine. This allows trapped oil to escape.
    • Remove and inspect the mesh oil screens located adjacent to the main and auxiliary drain bolts–pull them out gently, clean with brake cleaner or solvent, then towel dry.
  • 3. Remove and Replace the Oil Filter
    • Use an 8mm socket to remove bolts for the oil filter cover on the right side of the engine.
    • Carefully remove the cover and old oil filter (some oil will spill, so have a rag handy).
    • Prime the new oil filter by dipping it in fresh oil before installation.
    • Insert the new oil filter in the correct orientation (read the filter and cover for “OUT” or “IN” markings).
    • Inspect both O-rings on the filter cover—replace if damaged. Lightly oil the O-ring before reinstalling the cover.
    • Reinstall the filter cover and bolts, tightening securely but not overtight.
  • 4. Clean and Reinstall All Components
    • Inspect and clean the threads on the drain bolts. Always use a fresh crush washer on the main drain bolt to prevent leaks.
    • Reinstall all mesh screens, auxiliary bolt, and main drain bolt. Torque to manufacturer spec–over-tightening can strip the case.
    • Wipe away any spilled oil from the cases and bolts.
    • Reinstall skid plate if removed.
  • 5. Add New Oil
    • Remove the oil fill cap on top of the right engine cover.
    • Using a funnel, pour fresh oil until you reach the specified capacity (1.2 liters recommended–verify with your manual).
    • Reinstall the fill cap.
  • 6. Check Oil Level
    • Start the engine and let it run for about 1–2 minutes, then shut it off and let the bike sit for a few minutes so oil can settle.
    • With the bike upright and level, check the oil sight glass. Oil should be between halfway and three-quarters full in the window.
    • Add oil if necessary; do not overfill.
  • 7. Dispose of Used Oil Properly
    • Pour used oil into a sealable container and take it to a local recycling center or auto parts store.

2018 FE250 HQ Change-Specific Tips

  • Watch for two drain bolts: Don’t overlook the auxiliary bolt for a complete drain.
  • Oil filter orientation matters: Install the filter with the open side facing out (or as marked).
  • Do not overfill: Running too much oil can cause increased crankcase pressure and leaks. Trust the sight glass reading on a level bike.
  • Check that oil is clear of debris: If there are metallic shavings or excessive contamination, consider inspecting internal engine parts or consulting your dealer.

Maintenance & Best Practices

  • Inspect the drain bolt and screen every oil change.
  • Monitor both color and consistency of oil at regular intervals.
  • For aggressive or sandy use, reduce oil change intervals to 8–10 hours of ride time.
  • Always use OEM or recommended oil filters.

Routine oil changes on your 2018 Husqvarna FE250 HQ will keep your engine running reliably and your investment protected for the long haul. If you need OEM filters, high-quality oils, or maintenance tools, MotoSport.com has you covered.

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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.