Kohler — Change Oil and Filter

Maintenance · lubrication system

From a Kohler service manual covering: CH18, CH20, CH22, CH23, CH25, CH620, CH630, CH640, CH670, CH680, CH730, CH740…. Check it applies to your exact model before use.

Applies to: Kohler CH18, Kohler CH740

Procedure

1. Change oil while engine is warm.
2. Clean area around oil fill cap/dipstick, drain plug/oil drain valve.
3. Remove drain plug and oil fill cap/dipstick; allow oil to drain completely (or open drain valve).
4. Clean area around oil filter; remove filter and wipe off mounting surface.
5. Reinstall drain plug and torque to 13.6 N·m (10 ft. lb.) or close oil drain valve.
6. Place new filter in shallow pan with open end up. Fill with new oil until oil reaches bottom of threads. Allow 2 minutes for absorption.
7. Apply thin film of clean oil to rubber gasket on new filter.
8. Refer to instructions on oil filter for proper installation.
9. Fill crankcase with new oil. Level should be at top of indicator on dipstick.
10. Reinstall oil fill cap/dipstick and tighten securely.
11. Start engine; check for oil leaks. Stop engine; correct leaks. Recheck oil level.
12. Dispose of used oil and filter in accordance with local ordinances.

Full service-parts list: Kohler CH740 →

Source: Kohler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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