Generac — Oil Change Procedure
Maintenance · Engine
From a Generac owner's manual — check it applies to your exact model before use.
Applies to: Generac GT-990 engine, Generac GH-410 engine
Before you start
- Never operate the engine with the oil level below the Add mark on the dipstick.
Procedure
- Run the engine until thoroughly warmed up then shut OFF.
- Pull the oil drain hose free of its retaining clip; remove the cap and drain oil.
- Replace the cap on the hose and retain it in the clip.
- Refill with the proper recommended oil.
Specs & values
- Oil capacity approx. 1.5 Qts (7 kW), Approx. 1.7 Qts (12/15 kW)
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.