Generac GP2500i — Change Engine Oil
Maintenance · engine lubrication
For the Generac GP2500i, from the Generac owner's manual.
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Before you start
- Allow engine to cool before draining oil
- Disconnect spark plug wires when working on unit
Procedure
- Place generator on a level surface
- Remove screws and side cover
- Disconnect spark plug wire from spark plug
- Clean area around oil fill and oil drain plug
- Remove oil fill cap and wipe dipstick clean
- Tip unit and drain oil completely into a suitable container
- Tip unit back to level position
- Insert funnel into oil fill opening, add recommended engine oil
- Check oil level with dipstick, adjust to safe operating range
- Install oil fill cap/dipstick and hand-tighten
- Wipe up spilled oil
- Replace side cover and screws
- Dispose of oil properly
Tools required
- funnel Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Capacity 0.35 L (0.36 qt.)
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.