How To Change the Oil in a 2018 Husqvarna TE150: A MotoSport.com Exclusive Guide

Shop parts for a 2018 Husqvarna TE150 Dirt Bike.

Changing the oil on your 2018 Husqvarna TE150 is a crucial maintenance step for ensuring your dirt bike’s transmission performs smoothly and reliably. This guide walks you through each aspect of the process, including model-specific considerations, the tools required, and expert tips for avoiding common mistakes. Regular oil changes extend your engine’s life and improve overall riding performance.

Tools and Materials You Need

  • Socket wrench set (8mm and 13mm sockets are common, verify for your specific bolt sizes)
  • Drain pan for old oil
  • Measuring cup or graduated container (to pour new oil accurately)
  • Funnel for easy, mess-free pouring
  • Shop rags or paper towels for cleanup
  • Fresh engine/transmission oil (10W-40 is recommended for this model)
  • Replacement crush washers or O-rings for drain plugs (optional but recommended)
  • Torque wrench (for correctly tightening bolts)
  • Rubber gloves (optional for cleanliness)

Step-by-Step Oil Change Procedure for the 2018 Husqvarna TE150

  • 1. Warm the Engine
    • Start the engine and let it idle for several minutes. This warms up the oil so it drains more easily and completely

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  • 2. Secure the Bike
    • Place the bike in an upright position on a stand. Make sure it is stable and level so the oil drains thoroughly

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  • 3. Locate and Remove the Drain Plugs
    • Your TE150 has two drain bolts: one on each side of the engine case. Locate both drain bolts (the one with a magnet helps catch metal particles)

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    • Put the drain pan under the bolts. Using the appropriate socket, remove both drain bolts and let the oil drain fully. Tip the bike slightly to the right if necessary to help all oil flow out

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    • Inspect the spent oil and the magnet for metal shavings, which can indicate internal wear.
  • 4. Replace the Drain Bolts
    • Check the crush washers or O-rings on the drain bolts; replace if worn or damaged.
    • Thread in both drain bolts by hand, then torque to the manufacturer’s spec using a torque wrench (consult your owner’s manual; typically around 10 Nm for this model).
  • 5. Add New Oil
    • Locate the oil fill cap on the right side of the engine and remove it

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    • Using a funnel, pour in new 10W-40 oil. The factory fill quantity is approximately 700 mL (double-check your manual for the exact spec).
    • To ensure the correct oil level, remove the small screw above the starter (called the oil check level bolt)

      . Add oil until it just begins to weep out of this hole, then reinstall the check bolt.
  • 6. Final Checks
    • Reinstall the fill cap securely.
    • Wipe away any oil residue on the engine with a rag.
    • Start the bike and let it idle for a minute, then turn it off and check for leaks around the drain and fill bolts.
    • If necessary, top off the oil after the engine has circulated it.
  • 7. Cleanup and Record Maintenance
    • Dispose of the used oil responsibly at a recycling center.
    • Note the date and hours in your maintenance log.

2018 Husqvarna TE150: Model-Specific Tips and Callouts

  • Two drain bolts must be removed—unlike some bikes that have only one. Make sure you get oil out from both bolts for a full drain

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  • No oil filter to replace: This model is a two-stroke, lubricating crank and piston by fuel-oil mix except for the transmission side, which uses gearbox oil only

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  • The oil check/weep hole above the starter is your gauge for correct oil fill level—oil should just trickle out when it’s at the right capacity before re-inserting the bolt

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  • Always use the recommended 10W-40 oil for optimal performance and wear protection

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  • Torque the bolts to spec: Over-tightening can crack the engine case; under-tightening can lead to leaks.
  • Run the engine briefly after filling and re-check the level; sometimes it settles and requires a slight top-off.

Your Bike, Best Maintained

Regular transmission oil changes on your 2018 Husqvarna TE150 keep shifting smooth and internal components protected—even during spirited riding. Follow this MotoSport.com proprietary guide with the correct tools and oil spec, and your off-road experience will stay at its best with minimal downtime.

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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.