Honda FourTrax Recon TRX250TM 2019 Owner's Manual page 109

3. Pour the drained oil into a suitable container and dispose of it in
an approved manner (page 158).
NOTICE
Improper disposal of drained fluids is harmful to the environment.
Add Engine Oil:
1. Reinstall the oil drain plug with a new sealing washer, and
tighten it to the specified torque:
18 lbf·ft (25 N·m , 2.5 kgf·m)
2. Fill the crankcase with the recommended grade oil
approximately:
1.6 US qt (1.5 ℓ)
3. Reinstall the oil fill cap/dipstick.
4. Start the engine and let it idle for 3 – 5 minutes.
5. Stop the engine and check the oil level. Make sure the oil is
between the upper and lower level marks on the oil fill cap/
dipstick. If necessary, add more oil but do not overfill.
6. Check that there are no oil leaks.
If a torque wrench is not used for installation, see your dealer as
soon as possible to verify proper assembly.
Engine Oil
Servicing Your Honda 99