The Best Motorcycle Fuel Additive 2022: Top 5 Best Picks

Additives improve the quality of fuel by eliminating various oxidation processes from ethanol and gasoline-based oils. High fuel combustion in engines prevents these reactions, but an idle engine escalates ethanol breakdown.

On the contrary, using high-quality fuel additives cleans your engine components and maintains the quality of oil for long while your bike stands.

We have a few top-quality brands that will maintain your engine and oil in excellent condition during the inactive period. Have a look at our list of best motorcycle fuel additives today.

Best Motorcycle Fuel Additive

Motorbike Fuel Additives: Comparison

In this section, we give a review of high-quality fuel treatments for motorcycle and their target action. However, if you won’t read to the finish, check out our comparison table for an inclusive summary of each product.

RankingProduct NameManufacturerWeight
1Sta-Bil 8 fl. oz Fuel StabilizerGold Eagle Co8.5 ounces
2Sea Foam 16oz for Diesel and Gas Motor TreatmentSea Foam8 ounces
3Star Tron Fuel Additive with Enzyme Fuel TreatmentStar brite
4Sta-Bil 360 Marine Fuel Stabilizer and Ethanol Treatment
Gold Eagle Co7.8 ounces
5Lucas Oil Fuel TreatmentLUCAS OIL1.76 ounces

Top 5 Picks for the Best Motorcycle Fuel Additives

If you have to use your motorbike with irregularity, you may want to try out various fuel stabilizers. An unused engine with ethanol and gasoline-related fuels builds vapor and water that accumulate over time. However, stabilizers prevent such kinds of reactions.

Here are some top brands of fuel additives that should help maintain your engine components and fuel all fresh during periods of disuse.

1. Sta-Bil 8 fl. oz Fuel Stabilizer

This is a great product for storing gasoline and ethanol-based fuels for longer periods of up to 24months. With this additive, you don’t have to drain your fuel before storage, yet it stops the build-up of gum and varnish inside your engine, injectors, and carburetor.

On the other hand, it ensures that you can easily fire up your engine even after long periods of storage.  1 oz is enough to treat every 2 gallons of gas so that 8 fl. Oz can ensure bulky storage of gas.

We like that it is a suitable stabilizer for generator fuels, cars, boats, and other 2-cycle engines. Take note to add the stabilizer to fresh gas in an almost full tank. However, leave a small margin for mixing so that as you start your engine, the additive blends in well.


  • Easy to use
  • Effective for long periods
  • Prevents corrosion buildup
  • Graduations for measuring


  • Bottle design contradicts application

2. Sea Foam 16oz for Diesel and Gas Motor Treatment

This is a great engine protector because it cleans your injectors, carburetors, and passageways leaving no fuel residues. The process also applies to valves, cylinders, and pistons and it lubricates the cylinder system.

On the other hand, it also acts as a stabilizer and keeps fuel up to 2 years without dispersion or building water in your engine.

Besides, it also dissolves harmful residues and oil deposits in your crankcase so that they clear out through exhausts. We like that it is both a cleaner and stabilizer and your gas or diesel will not oxidize for the longest time in storage.


  • EPA certified and registered
  • Improves gas efficiency
  • Excellent cleaner
  • Excellent for both2 and 4-cycle engines


  • Leaking bottles at delivery

3. Star Tron Fuel Additive with Enzyme Fuel Treatment

This is a great choice if you have various automobiles at it is suitable for all engines. The fuel treatment prevents phase separation in ethanol and gasoline fuels and is great for all-time use and periodic storage of motorbikes.

It is an excellent cleaner and stabilizer and leaves your injectors and carburetors free of gum, carbon deposits, and varnish. It also allows for fuel efficiency while reducing harmful emissions from your engine.

We like that the Star Tron protects from fuel oxidization even after months of your engine staying idle. Its application also cuts across all engines.


  • For both 2-cycle and 4-cycle
  • Cleaner and stabilizer
  • Improves fuel use
  • Prevents phase separation


  • Pricey

4. Sta-Bil 360 Marine Fuel Stabilizer and Ethanol Treatment

This is a strong stabilizer and it keeps your engine clean, corrosion-resistant, and running with high fuel efficiency. It eliminates all deposits and residues with 1oz working for 38 gallons of fuel.

It is a super choice for jet skies, boats, and water engines and the fuel additive allows for maximum performance by eliminating phase separation in ethanol and gasoline fuels.

Furthermore, it clears gum and varnish from the injectors to the exhausts so that your engine runs on low fuel. Besides, oil stays fresh for up to a year.

Although it is an expensive stabilizer, we appreciate that there are cheaper options, especially for the 8 oz size. It is a strong stabilizer and its economy pack is enough for a single motorbike or two.


  • Prevents rust and corrosion
  • Easy to use
  • High fuel efficiency
  • Effective for long periods


  • Expensive

5. Lucas Oil Fuel Treatment

This fuel treatment is effective for diesel and gasoline LPG for cleaning, lubrication, and excellent fuel conversion.

It creates a neutral balance for low sulfur fuel and is a great additive for lead fuel automobiles eliminating the need for lead fuels in gasoline. Besides, your injectors and carburetors are free from gum and other residues so that fuel conversion is at its highest.

The effect of old oil will not be felt, yet it takes time before refilling gas and other fuels while using this additive. More importantly, the presence of natural oils and additives maintains your pumps, injectors, and the rest of the engine in great shape.


  • Improves engine performance
  • Effective cleaner
  • Affordable
  • High fuel conversion


  • Needs regular use for maximum results

Also read: The Best Degreaser for Motorcycle – Buyer’s Guide

How to Choose Effective Motorcycle Fuel Stabilizers

Here are some factors to consider in choosing the right fuel stabilizers.

Engine compatibility

Some stabilizers are specific to either 2-stroke or 4-stroke engines. However, if you have several fleets and motorbikes, you can buy an all-engine stabilizer for various applications.

Ease of application

Different manufacturers come up with their application procedures and user guide. However, most of them give straight directions on use and mixing ratios. It should not be complicated to apply.

Range of application

Stabilizers have versatile applications that range from cars, boats, lawnmowers, and so on. You need to confirm the type of tank and compatibility so that you buy as many automobiles as possible.

 The mixing ratio for large tanks is not the same as for smaller ones.


We all love budget-friendly items. However, small market research for the most appropriate product should guide your buying decision. You can inquire about quality and costs from other users before settling on an expensive product.

Frequently Asked Questions (FAQs) on Fuel Stabilizer for Motorcycles

In this section, we respond to questions posed concerning the best fuel system cleaner. We hope that this informs your choice of the right product. Let’s dive in.

Does fuel injector cleaner work on motorcycles?

Fuel injector cleaners clear the injectors from oil deposits, residues, and carbon deposits. On motorcycles, you introduce it through the fuel tank. The 2-cycle engine should do the rest.

Should you put fuel stabilizer in motorcycle?

Anytime you need to leave your bike idle for days or months, you should consider using fuel stabilizers. On the contrary, you may use them to clean clogged-up injectors, pumps, and carburetors from oil residues and carbon deposits.

Is fuel stabilizer must use things for motorcycle?

It is not necessary to use fuel stabilizer for motorcycles, but using fuel stabilizer can help prevent the formation of gum and varnish in the fuel tank. Stabilizing fuel during storage helps it start up more easily and run cleaner after storage. Stabilizing fuel does not improve fuel economy/performance or provide any protection to the engine.

Fuel stabilizer, also known as fuel conditioner, saves gasoline from breaking down over the course of time.

How long before gas goes bad in motorcycle?

Gasoline will begin to turn into a gummy goo after about 4 to 6 weeks if it is left in a metal container and in a plastic container it will last about 6 months. But if you can stabilized gas with a fuel stabilizer, it will last indefinitely.

The exact amount of time depends on the temperature of the gas, the amount of water in the gas, and how clean the tank is. If the gas is not kept at right condition, the gas will go bad faster.

Which Is Best – Our Final Verdict

From our product list, the Sta-Bil 8 fl. oz Fuel Stabilizer is our top pick. It is a highly effective fuel additive for longer periods of up to 24months and it prevents phase separation for all ethanol and gasoline-based oils.

It is also easy to use with clear graduations for application and a single 8 oz should work with up to 38 liters of fuel. It is an excellent choice for two-cycle engines.

Wrap Up

Motorcycle fuel additives ensure high fuel efficiency, low emissions, and an efficient engine system. Check this list of best motorcycle fuel additives and select your favorite. You don’t have to spend on expensive maintenance procedures if you keep your bike in the right way.

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