Suzuki DF 2.5 Service Manual page 25

2-4 PERIODIC MAINTENANCE
ENGINE OIL CHANGE
Change initially after 20 hours (1 month) and every 100
hours (6 months) thereafter.
NOTE:
Change the engine oil while the engine is warm.
1. Place the motor in a vertical position and remove the motor
cover.
2. Remove the oil filler cap.
3. Place a container under the engine oil drain plug.
4. Remove the engine oil drain plug and the gasket in order to
drain the engine oil.
5. Install the gasket and the engine oil drain plug.
Tighten the plug to the specified torque.
 Engine oil drain plug: 10 N·m (1.0 kg-m, 7.0 lb-ft)

Do not re-use the removed gasket. Always use a new
gasket.
6. Pour the recommended engine oil to the upper limit.
7. Tighten the oil filler cap securely.
Engine oil amounts: 0.38 L (0.40/0.33 US/Imp. qt)
8. Start the engine. Allow the engine to run for several minutes
at the idle speed. Check for oil leakage.
9. Turn off the engine and wait for approx. two minutes.
Re-check the engine oil level. (See page 2-3.)
Upper limit
Lower limit