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Generac 004582 / 12 DTA — Changing Oil and Oil Filter

Maintenance · Engine lubrication system

For the Generac 004582 / 12 DTA, from the Generac owner's manual.

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Before you start

  • Disconnect negative battery cable before maintenance.

Procedure

  1. Run engine until warm, then stop.
  2. Clean area around oil drain hose and plug.
  3. Remove oil drain plug and oil fill plug; drain oil.
  4. Install drain plug and tighten securely.
  5. Place container under oil filter; turn counterclockwise to remove.
  6. Coat new filter gasket with clean oil; install and tighten 3/4 turn after contact.
  7. Fill oil sump with recommended oil; wipe spills.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • Tighten oil filter an additional 3/4 turn

Source: Generac 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.

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