Many people drain fuel from their generators to store them safely. When power sits in your engine and fuel tanks for long, oxidation takes place. This oxidation creates new compounds that cause damages to the engine. That is why people drain fuel from their generators to prevent stale gas issues. But do you know? You can keep your fuel fresh and free from oxidation, along with the help of a fuel stabilizer.
Problems Associated with Storing Generators with Fuels:
- Old fuel goes into the oxidation process quickly that causes damages to the engine.
- Environmental changes in temperature cause condensation that promote the growth of bacteria and algae in fuel tanks.
- Generator’s fuel tank and engine catch corrosion, rust, gum, and varnish.
- The carburetor and fuel injectors get affected by erosion.
- Old fuel degrades the engine’s performance.
- The oxidizing power causes starting problems.
The only solution to prevent damages caused by old fuel is to use a fuel stabilizer. It absorbs water before the fuel does it. It keeps your engine and fuel tank free from rust and corrosion and lubricates your entire fueling system. Also, a fuel stabilizer increases the performance of the machine.
Table of Contents
Generator Fuel Stabilizer Reviews
STA-BIL 22214 Fuel Stabilizer
STA-BIL 22254 Diesel Fuel Stabilizer
PRI Fuel Stabilizer
Star Tron Gas Tank and Fuel System Cleaner
Briggs & Stratton 100118 Fuel Treatment
1. STA-BIL 22214 Fuel Stabilizer – Overall Best
Size: STA-BIL 22214 fuel stabilizer comes in a 32 fluid ounce pour bottle. But you can also go for other options starting from 4 ounces to 1 gallon.
Generator Support: If you have a 2-stroke or 4-stroke gasoline engine, this fuel stabilizer is made for you.
Fuel Treatment: It treats up to 80 gallons of gasoline. Use 1 ounce of fuel stabilizer to treat up to 2.5 gallons of gasoline. For small-sized generators having 3-gallon fuel tanks, use 1 ounce of stabilizer. And for more giant tanks, add the stabilizer accordingly.
Stabilization Time: There is no need to drain fuel before storing your generator. You can keep your generator filled with fresh fuel for up to 24 months. Even after 24 months, your generator’s engine will start easily and quickly.
Effectiveness: It extends the engine’s life by protecting it from rust, corrosion, gum, and varnish. Also, it cleanses the carburetor and fuel injector and prevents corrosion by removing water.
Weight: The weight of this product is 1.9 pounds. You can carry it anywhere easily.
2. STA-BIL 22254 Diesel Fuel Stabilizer – Supports All Diesel Engines
Size: Another fuel stabilizer in the list is from STA-BIL. It is available in both 32 fluid ounce and 128 fluid ounce sizes. You can go for any size to meet your needs.
Generator Support: It is safe for all diesel engines, so that you can add this stabilizer into your 2-stroke or 4-stroke diesel-powered generator. Keep in mind; it is not designed to work with gasoline.
Fuel Treatment: This 32 fluid ounce bottle can treat up to 320 gallons of diesel.
For everyday protection, use 1 ounce to treat 10 gallons of diesel. And for seasonal storage, mix 1 ounce of stabilizer into 5 gallons of diesel.
Stabilization Time: Your diesel will remain fresh in your generator for up to 12 months.
Effectiveness: STA-BIL 22254 is quite an effective fuel stabilizer that cleans and lubricates the complete fueling system. You will never find corrosion, sludge, and sediment in your diesel fuel tank and engine. Also, it diminishes the chances of oxidation. Moreover, it boosts the performance of the machine.
Weight: It weighs 2.07 pounds.
3. PRI Fuel Stabilizer – Highest Fuel Treatment Rate
Size: It comes in a 16 fluid ounce bottle.
Generator Support: Whether you have a 2-stroke or 4-stroke gasoline engine, it works with both of them.
Fuel Treatment: It can treat up to 256 gallons of gasoline. Only 1 ounce of stabilizer will be enough to treat 16 gallons of gasoline. It means you can easily store your big-sized gasoline generator with only 1 ounce of fuel stabilizer.
Stabilization Time: Your fuel will remain stable for months without any doubt.
Effectiveness: It improves the engine’s performance and prevents carbon build-up in fuel tanks.
Weight: It weighs 2 pounds because of its bottle size.
4. Star Tron Gas Tank and Fuel System Cleaner – Supports Both Gasoline and Diesel Engines
Size: This Star Tron fuel stabilizer from Star Brite comes in a 64 fluid ounce bottle.
Generator Support: It works with both gasoline and diesel-powered generators.
Fuel Treatment: Its 1 ounce will treat up to 4 gallons of diesel or gasoline. And a whole bottle can treat up to 250 gallons of fuel. If your generator has a 4-gallon fuel tank, add 1 ounce of Star Tron and store it safely.
Stabilization Time: Your gasoline or diesel fuel will keep fresh for months.
Effectiveness: It will not only keep your fuel fresh but also make your old energy new again. You will not find any sludge and other fuel contaminants in your fuel tanks after adding this fuel stabilizer.
Weight: The weight of this fuel stabilizer bottle is only 1 pound.
5. Briggs & Stratton 100118 Fuel Treatment – Highest Stabilization Time
Size: Briggs & Stratton 100118 comes in an eight fluid ounce bottle.
Generator Support: You can either use it to protect your 2-stroke or a four-stroke gasoline engine.
Fuel Treatment: One bottle can stabilize up to 40 gallons of gasoline.
Stabilization Time: Your fuel will remain in a stable condition for up to 3 years.
Effectiveness: It offers triple antioxidant protection to your gasoline tanks.
Weight: Its weight is 0.5 pounds.
Before buying a fuel stabilizer for your generator, make sure you have checked its various features. In this guide, we will discuss the essential elements to look at when buying a fuel stabilizer.
Your fuel stabilizer must be compatible with the engine of your generator. Some fuel stabilizers only work with gasoline-powered machines, whereas some are made to treat diesel fuel engines and tanks. Therefore, it is essential to pick a gasoline fuel stabilizer for gasoline engines and a diesel fuel stabilizer for diesel-powered engines.
Also, before purchasing, make sure your fuel stabilizer works with both 2-stroke and 4-stroke engines. It will help you to use one stabilizer for both types of machines.
Always select the fuel stabilizers of well-known brands. It will help you to get the best quality product. STA-BIL, Star Brite, Royal Purple are famous fuel stabilizer brands.
Fuel stabilizers come in different bottle sizes. If you are going to use a stabilizer for your generator’s everyday protection, you must go for a 64 or 128 fluid ounce bottle. Or if you are going to use it only for seasonal storage, then an 8 or 16 fluid ounce bottle is enough for you.
Stabilization time also needs to be considered as it determines how long you can leave your generator with fuel.
The stabilization time of most of the fuel stabilizers is up to 2 years. So, it is better to go with a product that offers two years of fuel stabilization.
Ease of Use
Make sure your fuel stabilizer bottle offers easy pouring. Also, it’s mixing with fuel must be fast and easy.