How to Change the Oil in a 2019 Honda CRF250F: Step-by-Step Guide

Shop parts for a 2019 Honda CRF250F Dirt Bike.

Maintaining your 2019 Honda CRF250F with regular oil changes is crucial for peak dirt bike performance and longevity. Follow this MotoSport.com proprietary guide to change your oil safely, effectively, and with confidence.

Tools & Supplies Needed

  • 12mm wrench or socket/ratchet (for oil drain bolt)
  • 8mm wrench or socket/ratchet (for oil filter cover)
  • Drain pan
  • Clean rags or paper towels
  • Torque wrench (recommended for reassembly)
  • Honda GN4 10W-40 oil (1.7 quarts for 2019 CRF250F)
  • Honda Oil Filter (part number: 15412-HM5-A10)
  • Replacement crush washer for drain plug (optional, check condition)
  • Phillips screwdriver (optional, if plastics obstruct access)
  • Gloves (optional, to keep hands clean)

Step-by-Step Oil Change Process

  1. Warm Up the Bike
    • Start your CRF250F and let it idle for several minutes to warm the oil. Warm oil drains more easily and removes more particulates.
    • Shut off the engine and ensure the bike is upright and secure (use a stand if available).
  2. Remove the Oil Filler Cap
    • Twist off the oil filler cap/dipstick on the right side case to allow air in, helping oil flow out smoothly.
  3. Drain the Oil
    • Place a drain pan under the engine's oil drain bolt (bottom-located on CRF250F frames).
    • Use a 12mm wrench or socket to loosen and remove the drain bolt by turning it counterclockwise. Push slightly inward as you unscrew to prevent oil from spilling over the threads.
    • Allow the oil to drain out completely. It helps to rock the bike gently side-to-side for more thorough drainage.
  4. Remove and Replace the Oil Filter
    • Find the oil filter cover on the engine case.
    • Remove the two 8mm bolts holding the oil filter cover.
    • Carefully pull off the cover. Be mindful of the spring behind the filter; don't lose it.
    • Take out the old filter and spring. Clean the filter chamber and cover with a clean rag.
    • Insert the spring and new oil filter (part number: 15412-HM5-A10). The filter is marked for correct orientation: "Spring side towards engine".
    • Align the oil filter cover and reinstall the 8mm bolts. Tighten them securely, but don't over-torque.
  5. Inspect and Reinstall the Drain Plug
    • Inspect the drain plug's crush washer. Replace it if it looks damaged or worn for proper sealing. Honda crush washers can usually be reused a few times.
    • Reinstall and hand-tighten the drain plug, then torque to spec (consult your manual for exact torque, typically about 18 lb-ft or 24 Nm).
  6. Refill with Oil
    • Using a funnel, pour in 1.7 quarts of genuine Honda GN4 10W-40 4-stroke oil.
    • Check the level with the dipstick and top off as needed. The oil should fall between the “low” and “high” marks on the stick.
    • Replace the filler cap/dipstick.
  7. Check for Leaks and Test
    • Start the bike and let it idle for a couple of minutes, then shut off and inspect around the drain plug and filter for signs of leaking.
    • Re-check the oil level once the oil has settled. Top off if needed.

2019 CRF250F Specific Call-Outs

  • Oil Filter Part Number: 15412-HM5-A10 (identical for several CRF250F model years).
  • Oil Capacity: 1.7 quarts or 1.6 liters (do not overfill).
  • Drain plug location is easily accessible underneath; however, be deliberate when loosening to avoid stripping threads or splashing hot oil.
  • Correct orientation of the oil filter is essential; the “spring side” faces inward, toward the engine.
  • Crush Washer: Inspect each oil change; though reusable, keep spares on hand for best results.
  • No significant year-to-year changes for the oil change process from 2019–2022 for the CRF250F.

Maintenance Tips

  • Change oil after the first few hours on a new bike, then every 600 miles or as listed in the owner’s manual.
  • Always use high-quality oil and genuine or equivalent oil filters for best engine performance and durability.
  • Double check for tools or rags left behind in the engine area before starting up your bike.
  • Document the date and hours after each oil change for reliable maintenance tracking.

By following these steps and model-specific notes, you ensure your 2019 Honda CRF250F stays in top condition. Questions? Reach out to MotoSport.com for expert assistance and all the genuine Honda parts and tools you’ll need.

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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.