Mitsubishi S12A2 — Change oil filters and bypass oil filter
Maintenance · Lubrication system
For the Mitsubishi S12A2, from the Mitsubishi owner's manual.
Applies to: Mitsubishi S12A2, Mitsubishi S12A2 engine
Before you start
- Change the engine oil when replacing the oil filter
Parts for this job
Part numbers from the service-parts list for Mitsubishi S12A2. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Clean dirt and dust off the filter surface and place a container under the oil filter.
- Using a filter wrench, remove the used oil-filter cartridge.
- Check the used element for metal debris; consult your Mitsubishi dealer if found.
- Clean the filter base with a clean cloth.
- Check the new filter packing is properly seated, then coat packing with clean engine oil.
- Install the new filter; when packing contacts the base, tighten 3/4 to 1 turn more by hand.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Tighten cartridge by hand; do not use a filter wrench
Full service-parts list: Mitsubishi S12A2 →
Source: Mitsubishi owner's 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.