6 Steps You Can Take To Increase The Lifespan Of Your Portable Generator

02/23/2026

Title

A portable generator is an investment, and with the right care, it can last for many years.

Unfortunately, small oversights like skipping oil changes or storing it improperly can shorten its lifespan faster than most people realize.

The good news is that these issues are easy to prevent.

Below are six simple steps you can take to help your portable generator run longer, perform better, and stay ready when you need it most.

1. Inspect and Change Oil Regularly

One of the easiest mistakes you can make as a new portable generator owner is forgetting to change out the oil.

Oil is essential in making sure everything runs smoothly. Every Flex Power generator is equipped with a dipstick that allows you to easily tell whether the oil is too low.

Not replacing oil on a regular basis could lead to engine damage, excessive heat, and potential total failure.

2. Exercise the Unit Often

Like most pieces of technology, generators function best when they are operated on a regular basis.

Even if you don’t need to power anything, occasionally running your portable generator will help ensure everything is working smoothly and not sitting unused for long periods.

We recommend running your generator at least once a month for 10 to 15 minutes to ensure the engine is well lubricated and to help with the early identification of potential issues.

3. Prevent Fuel Degradation

When using gasoline, the fuel in a generator can degrade over time, especially if it has been sitting idle for months.

This can lead to clogged fuel lines as well as poor engine performance.

The easiest way to prevent this is by either running the generator regularly or by emptying the fuel tank when you know the generator will not be used for a while. Alternatively, you can add fuel stabilizer to help prevent it from deteriorating as quickly.

It’s also important to check the fuel lines for cracks or leaks to make sure no additional damage occurs.

4. Wait a Few Minutes Before Plugging in Electronics

Once a generator has been started, it usually takes a few minutes for it to stabilize.

During this period, it’s important to avoid plugging in any sensitive electronics to the outputs. While the risk is not great, there is a chance that the energy produced from the generator could surge and overload any attached electronics.

Allowing 2 to 3 minutes for it to stabilize will help both the generator and any electronics stay unharmed.

5. Maintain Proper Storage

Storing your portable generator in a safe and controlled environment is a big factor in ensuring it lasts a long time.

The best way to store it is in a dry, flat area with minimal temperature fluctuations. For many people, this will be their garage or an outdoor shed.

Putting a piece of plywood underneath your generator is an easy trick that helps prevent the generator from absorbing moisture from the ground. Excessive condensation can freeze during winter and restrict fuel flow.

If you do have to store a generator outdoors or in a cold area, make sure to run it regularly to avoid engine damage.

6. Don't Ignore Safety Indicators

While it may sound simple, it is easy to overlook the safety indicators on some portable generators. However, it is important to pay attention to these indicators so you can address issues before serious damage occurs.

Not all generators include extensive safety features, so it is a good idea to research which ones are present before making a purchase.

Make sure to read through the generator's manual to understand what each safety indicator means so you won't be caught off guard if one goes off.

Flex Power generators include a wide array of built-in safety features, such as carbon monoxide detection and automatic shutoff.

Having trouble finding the right generator? Check out our guide for how to avoid the most common mistakes people make when looking for portable generators.

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