Generac Q-70G — Changing the Engine Oil and/or Oil Filter
Maintenance · Engine crankcase / oil filter
For the Generac Q-70G, from the Generac owner's manual.
Applies to: Generac GN-480 engine
Before you start
- DO NOT FILL ABOVE THE "FULL" MARK.
Procedure
- Run the engine until thoroughly warmed up (at least five minutes) then shut OFF the engine.
- With the engine still warm, remove the oil drain plug and drain the oil into a suitable container.
- After the oil has drained, replace the oil drain plug.
- If changing the filter, remove the old oil filter by turning it counterclockwise.
- Apply a light coating of clean engine oil to the gasket of the new filter.
- Screw the new filter on by hand until its gasket lightly contacts the oil filter adapter, then tighten an additional 3/4 to one turn.
- Remove the dipstick and fill crankcase with the proper type and amount of recommended oil (about 1.4 liters).
- Install and tighten the dipstick before operating the engine.
- Start the engine and check for leaks.
Specs & values
- Change oil after first 25 hours, then every 50 operating hours
- Change oil filter after first 25 hours, then every 100 operating hours
- Oil filter tightened 3/4 to one turn after gasket contact
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.