What kind of oil do I use?
What Kind of Oil Do I Use?
When it comes to choosing the right oil for your Generac generator, it's essential to follow the manufacturer's recommendations. For most air-cooled engines, Generac's manuals specify the use of Full Synthetic SAE 5W-30 oil, which is designed to perform well in all temperature ranges. However, it's crucial to take into account the average high and low temperatures in your particular region to ensure optimal engine performance.
Before starting your generator, always double-check the type and quantity of oil required. Failing to do so could result in engine damage and void your product warranty. To make this process easier, Generac offers Maintenance Kits that include engine oil, an oil filter, air filter, spark plug(s), a shop towel, and a funnel. These kits are available from an IASD (Independent Authorized Service Dealer) and contain oil that meets the minimum American Petroleum Institute (API) Service Class SJ, SL, or better standards. It's important not to use any special additives in your generator's oil.
For liquid-cooled and diesel generators, it's essential to consult the specific model manual you have. Engine configurations can vary between units, so referring to the manual for your particular setup is crucial.
Additionally, Generac produces specially formulated oil for gaseous engines that burn hotter. This oil is designed to withstand the higher operating temperatures of these engines, ensuring optimal performance and longevity. For more detailed information and assistance, you can visit Generac's Product Support Lookup.
Other articles that will help you
Where to find a parts manual, install manual, owners manual, exploded view or wiring diagram?
What is the service or maintenance schedule of my air cooled generator?
How Do I Check My Engine Oil Level?
What is considered “normal” oil consumption on air cooled generators?
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