This kind of gas is utilized by portable Generac generators.

Not only is it crucial to use the proper gas in your generator, but it’s also crucial to understand what can harm fuel and how to maintain it.

Unleaded gasoline with a minimum octane rating of 87 and a maximum ethanol percentage of 10% is used in portable Generac generators.

Always work in a well-ventilated environment when handling fuel. Adhere to all safety instructions listed in the Generac operator’s manual.

How to Pick the Best Gas for a Generac Generator

It’s crucial to use recent gasoline with a low ethanol percentage when purchasing fuel for your Generac generator. To help reduce the damaging impact fuel may have on the fuel system and engine, I also advise adding a fuel additive.

Low Ethanol Content

Gasoline is made slightly more environmentally friendly by the addition of ethanol, an alternative fuel. Frequently, corn or another high-starch plant is used to make this product.

Moisture is drawn to ethanol by nature. When moisture and ethanol combine, varnish that coats and gums the fuel system might be left behind, producing fuel limits. Additionally, generator parts could start to deteriorate too soon.

Always choose gasoline with an ethanol level no higher than 10% due to its harmful effects on the fuel system. The better, the lower the ethanol content. Never use E15, E30, or E85 fuels. These fuels have ethanol content of up to 15%, 30%, and 85%.

Use brand-new gasoline

In as little as 30 days after purchase, gasoline can start to degrade. Therefore, it’s advisable to buy fresh fuel and utilize it inside this window of time.

Add a fuel additive to stabilize the gas if you buy more gas than you can use in 30 days to extend the time before it degrades.

Integrate a fuel stabilizer

While the gasoline is still new, add a fuel stabilizer to it. The impacts of old gas cannot be undone by fuel additives.

For every gas tank, I like to put Sea Foam Motor Treatment. In addition to stabilizing gas, sea foam also dehumidifies and cleans the fuel system. It reduces issues that could arise from using stale fuel.

STA-BIL is a good alternative to fuel additives.

Fuel Free of Ethanol (Optional)

The damaging effects that ethanol has on the generator can be avoided by using an ethanol-free gas. Even though ethanol-free petrol is preferable for your Generac, it is also the most expensive fuel option.

Some gas stations sell ethanol-free gasoline. It is marketed as REC-90, or recreation fuel. Additionally, it is available in canisters at your neighborhood hardware store or online, such as this 4-cycle fuel made by TruFuel. It’s practical to keep the canisters on hand.

Purchasing and storing gas for your Generac generator: some helpful advice

Problems starting and running a Generac generator can result from using the incorrect gas or outdated gas. When selecting and storing gas, remember to:

• Utilize only brand-new gas, and use it within 30 days.
• Use unleaded fuel with an octane value of at least 87 and a maximum of 10% ethanol.
• If you are unable to consume gas within 30 days, add a fuel stabilizer.
• Keep gasoline away from combustible items in a dry, cold location.