All You Need to Know About the Use of Fuel Stabilizers in Generators

Are you wondering what a fuel stabilizer is and why is important? This blog will answer all your questions. When it comes to having a generator, you never know when you’ll need it. It’s a safeguard against life’s uncertainties. Chances are you won’t use it 98% of the time during a given week. But it’s the crucial 2% that makes owning a generator a sound investment. However, during the 2% situation, your generator won’t function effectively, especially when you are starting it after a long time. So let’s delve right into it.

Best home generators do not deteriorate when left unattended. Diesel and gasoline, on the other hand, do if safeguards are not taken. Having said that, it is important to add fuel stabilizers or ignition/combustion retardants since gasoline and diesel fuel are perishable commodities. Your generator will start and run smoother with a small quantity of stabilizer added to the stored fuel. Failure to use a stabilizer can result in poor performance or an engine that won’t start after being stored for several months.

Moreover, the use of an ignition retardant for a generator, whether for gasoline or diesel, is universally recommended and known to extend the life of the generator gasoline by two or three times.

Why Use a Stabilizer?

One of the common practices to prevent fuel-related issues is to drain your generator’s fuel tank. However, draining a fuel tank means lifting heavy units, fuel spills, and discarding the gasoline. To save you from this, gasoline stabilizers come into the picture as one of the most reliable and effective ways to keep your generator’s fuel tank in good condition. Below are the reasons why you should use a combustion retardant–

1. To stop the oxidation process

2. To help stop the growth of bacteria and algae due to environmental changes

3. To save from corrosion, rust, gum, and varnish

4. To keep carburettors and fuel injectors free from erosion

5. To enhance the engine’s performance

6. To help start the engine at once

7. To lubricate the entire fuelling system

When to Use a Fuel Stabilizing Agents?

A fuel stabilizing agent is a terrific option to keep your engine healthy, but the crucial part is to know when to use it. We have listed three scenarios in which fuel stabilizers for generators are generally used –

1. If you own generators that sit for more than three weeks at a time.

2. If your generator has an older engine.

3. If you don’t want to spend money on repairing the engine or carburettor.

While the life of a gasoline stabilizer varies by composition, most combinations keep fuel fresh for 12 months. However, it all comes down to adding the right amount of ignition retardant.

Which Stabilizer to Use?

Some brands have fuel stabilizing agents to be used only with gasoline or diesel fuel, while others offer dual-purpose stabilizers. Read the label carefully before picking the best one for you. If you are confused or unsure, you can ask a store assistant or an expert to guide you.

How Much Should You Use?

The directions on every container of stabilizer tell you how much to use for a specific amount of fuel, and the amounts are typically minimal. Even after years of storage, one ounce of fuel stabilizing agent per two gallons of fuel for a generator tank is enough to allow gasoline to burn in a clean manner.

How to Use Fuel Stabilizer for Generators?

Pouring a capful of combustion retardant into the gas tank is not all you have to do. Instead, for optimal protection, you should follow these three procedures:

1.Correctly measure the stabilizer before adding it to the tank

First things first, read the product instruction for the stabilizer brand you bought. Make sure to nearly empty your generator’s gas tank. After that, measure out the amount of stabilizer and pour it into the tank.

2. Fill up your gas tank

This step disperses the fuel stabilizing agent with gasoline, ensuring that your tank is not exposed to air or water. You should opt for ethanol-free gas for better results.

3. Start the generator

Start the engine of your generator for the fuel stabilizing agent to mix and reach the whole fuel system. Do it for 5-10 minutes. Follow the instructions mentioned in the owner’s manual to shut it down.


Fuel stabilizers are an excellent method to conserve the fuel in your tanks and keep your engines operating smoothly. However, adding more stabilizers than suggested will do no good. Furthermore, it is strongly recommended to read the manufacturer’s instructions and use the recommended quantity for best results. Also, having a generator that is of good quality can make a huge difference. Looking for home generator solutions? We have got you covered!