How to Change the Oil in a 2018 Honda CRF110F

Shop parts for a 2018 Honda CRF110F Dirt Bike.

Welcome to MotoSport.com's proprietary guide on how to change the oil in a 2018 Honda CRF110F. Following these detailed instructions will keep your CRF110F running smoothly and extend its life. This guide includes the tools you need, model-specific tips, and a comprehensive, step-by-step oil change procedure for your dirt bike.

Tools and Supplies Needed

  • 17mm socket or wrench
  • Ratchet (for use with the socket if preferred)
  • Drain pan for collecting old oil
  • Funnel (optional, but helpful for pouring new oil)
  • Rags for clean-up
  • OEM Honda 10W-30 Motorcycle Oil, or any 10W-30 oil rated for a wet clutch
  • New draining bolt sealing washer (highly recommended for a leak-free seal)
  • Torque wrench (optional, recommended for precise tightening)
  • Parts cleaning brush (for cleaning around the drain bolt and filler area)

Step-by-Step Instructions

  1. Prepare Your Work Area and Bike
    • Park your CRF110F on a firm, level surface to prevent tipping.
    • Turn off the engine, ensure the bike is cool, or run it for 3-5 minutes first if cold to warm the oil and help it drain more completely. Then, let it sit for 2-3 minutes to allow the oil to settle.
  2. Remove the Oil Fill Cap/Dipstick
    • Locate the oil fill cap/dipstick on the right side of the engine and remove it. Set it aside in a clean area.
  3. Position the Drain Pan
    • Place the drain pan directly under the oil drain bolt on the underside of the engine. Make sure it is centered to catch all draining oil.
  4. Remove the Oil Drain Bolt
    • Use the 17mm socket and ratchet or a wrench to carefully loosen and remove the oil drain bolt.
    • Be careful not to remove the cam chain tensioner push rod bolt, which is close by. If you mistakenly remove it, consult your dealer.
    • Let the oil drain completely. You can gently tilt the bike side-to-side to help release all the old oil.
    • While the oil drains, wipe off any dirt or debris near the drain bolt opening with a clean rag, but do not let dirt fall into the engine

      .
  5. Inspect and Replace the Sealing Washer
    • Remove the old sealing washer from the drain bolt and replace it with a new one. This prevents leaks and ensures a tight seal

      .
  6. Reinstall the Oil Drain Bolt
    • After the oil has fully drained (typically takes a few minutes), reinsert the drain bolt with its new sealing washer.
    • If available, use a torque wrench to tighten the bolt to the manufacturer–s specs—do not over-tighten to avoid stripping the threads.
  7. Pour in Fresh Engine Oil
    • Insert a funnel into the fill port, or use a bottle with a built-in spout for easier pouring

      .
    • Add 1 liter (1.06 US qt) of 10W-30 motorcycle oil rated for wet clutch use (this is the correct capacity for the 2018 Honda CRF110F)

      .
    • Do not overfill. Check the level against the dipstick as you pour.
  8. Replace the Oil Cap/Dipstick
    • Once filled, screw the dipstick back in hand-tight. Start the bike and let it idle for 2-3 minutes to circulate the new oil.
    • Shut the engine off, let the bike sit for a minute, and check the oil level again with the dipstick. Add more oil if necessary, but do not exceed the fill mark.
  9. Cleanup and Dispose of Old Oil Properly
    • Wipe up any spills with rags. Dispose of the old oil at a recycling center or approved hazardous waste site. Never pour it down the drain or on the ground

      .

Model-Specific Callouts for the 2018 Honda CRF110F

  • Sealing Washer: The 2018 CRF110F uses a sealing washer on the oil drain bolt—replace it every oil change for best results

    .
  • Oil Screen Inspection: The CRF110F does not use a replaceable oil filter, but it does have an internal oil screen. Honda generally recommends cleaning this screen at longer intervals. If you ride intensively, reference your owner‘s manual or a technical service guide for screen maintenance instructions

    .
  • Drain Bolt Location: Be very careful not to remove the cam chain tensioner push rod bolt, which is located close to the oil drain bolt. Removing the wrong bolt can cause engine issues—always verify before loosening

    .
  • Oil Type: Always use engine oil specifically rated for wet-clutch motorcycle use (JASO MA/MA2). Automotive oils may cause clutch slippage

    .
  • Capacity: Use exactly 1 liter–do not overfill

    .

Extra Maintenance Tips

  • Stick to Honda's recommended oil change interval–typically every 600 miles or six months for normal riding conditions, or more often for harsh use.
  • Always check for leaks after starting the engine. If you see oil seeping from the drain bolt, double-check the washer and bolt torque.
  • Consider logging each oil change for future reference and maintenance tracking.

Keeping your 2018 Honda CRF110F well-lubricated is essential to its performance and longevity. Use this MotoSport.com guide as your go-to resource every time you perform an oil change. Happy riding.

Related Shopping Categories

Shop Motor Oil for a 2018 Honda CRF110F Dirt Bike.

Shop Oil Filters for a 2018 Honda CRF110F Dirt Bike.

Shop Oil Drain Pans for a 2018 Honda CRF110F Dirt Bike.

Shop Tools for a 2018 Honda CRF110F Dirt Bike.

Shop Oil Fillers and Drain Plugs for a 2018 Honda CRF110F 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.