Star Tron marine fuel treatment, STA-BIL 360 Marine stabilizer and fogging oil on a boat deck.

MARINE FUEL & ENGINE STORAGE CARE

Find the Right Fuel Treatment for Your Boat and Storage Plan

Shop marine fuel treatments, boat fuel stabilizers and engine fogging oils for routine maintenance and seasonal storage. Compare gasoline and diesel formulas, treatment purposes and package sizes to choose the right product for your next fill-up or planned storage period.

Fuel Treatments & Engine Storage Care

Explore marine fuel treatments and engine storage care from Star brite and STA-BIL. This collection includes marine fuel additives, boat fuel stabilizers, fuel-system cleaners, tank cleaners and fogging oils for different maintenance tasks.
Start with your fuel type and intended application, then compare the exact formula, bottle size and package quantity. Gasoline and diesel products are not automatically interchangeable, and storage requirements can vary by engine. Check the product label and your engine manufacturer’s guidance before choosing an individual bottle, multipack or case.

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  • STA-BIL In-Season Protection - 32oz

    STA-BIL In-Season Protection - 32oz MPN - 22275 SKU: 79997
    MPN: 22275

    $21.49
    $23.64
    $21.49
    This listing is one 32 oz In-Season treatment bottle. Calculated total-package capacity is 160 US gallons at the current published rate. Fuel that is used throughout the season has different maintenance needs from equipment placed in extended storage. This in-season gasoline fuel treatment is...
    $21.49
    $23.64
    $21.49
  • STA-BIL Fuel Stabilizer - 16oz *Case of 12*

    STA-BIL Fuel Stabilizer - 16oz *Case of 12* MPN - 22207CASE SKU: 78253
    MPN: 22207CASE

    $155.88
    $171.47
    $155.88
    This gasoline Storage listing contains twelve 16 oz bottles. Calculated treatment capacity is 40 US gallons per bottle or 480 US gallons across the case at the Storage formula’s published rate. Seasonal equipment often remains unused with fuel still in the system. A gasoline...
    $155.88
    $171.47
    $155.88
  • STA-BIL Fogging Oil - 12oz *Case of 6*
    Out Of Stock

    STA-BIL Fogging Oil - 12oz *Case of 6* MPN - 22001CASE SKU: 78244
    MPN: 22001CASE

    $41.94
    $46.13
    $41.94
    This fogging-oil case contains six 12 oz aerosol cans. Choose multiple containers for planned preservation work, while following each engine’s approved storage procedure. Fuel-treatment gallon capacities do not apply. Fuel storage and internal engine preservation address different parts of a lay-up plan. This 12...
    $41.94
    $46.13
    $41.94
    Out Of Stock
  • STA-BIL 360® Marine™ - 1 Gallon *Case of 4*

    STA-BIL 360® Marine™ - 1 Gallon *Case of 4* MPN - 22250CASE SKU: 78243
    MPN: 22250CASE

    $599.96
    $659.96
    $599.96
    This marine gasoline fuel treatment case contains 4 containers of 1 gallon each. Calculated treatment capacity is up to 1,280 US gallons per container, or 5,120 US gallons across the case. Dose each fuel quantity separately. Marine gasoline fuel treatment is intended for the...
    $599.96
    $659.96
    $599.96
  • STA-BIL Diesel Formula Fuel Stabilizer & Performance Improver - 32oz *Case of 4*

    STA-BIL Diesel Formula Fuel Stabilizer & Performance Improver - 32oz *Case of 4* MPN - 22254CASE SKU: 78247
    MPN: 22254CASE

    $111.96
    $123.16
    $111.96
    This case contains four 32 oz diesel-stabilizer containers. Calculated capacity is 320 US gallons in-season or 160 US gallons for storage per container; the case totals 1,280 US gallons in-season or 640 US gallons for storage. Diesel fuel care requires a product selected for...
    $111.96
    $123.16
    $111.96
  • STA-BIL Fuel Stabilizer - 10oz *Case of 12*

    STA-BIL Fuel Stabilizer - 10oz *Case of 12* MPN - 22206CASE SKU: 78252
    MPN: 22206CASE

    $119.88
    $131.87
    $119.88
    This gasoline Storage listing contains twelve 10 oz bottles. Calculated treatment capacity is 25 US gallons per bottle or 300 US gallons across the case at the Storage formula’s published rate. Seasonal equipment often remains unused with fuel still in the system. A gasoline...
    $119.88
    $131.87
    $119.88
  • STA-BIL Starting Fluid - 11oz *Case of 6*
    Out Of Stock

    STA-BIL Starting Fluid - 11oz *Case of 6* MPN - 22004CASE SKU: 78246
    MPN: 22004CASE

    $32.94
    $36.23
    $32.94
    This starting-fluid listing contains six 11 oz aerosol cans. Case quantity is a purchase choice; it does not establish an approved method for every engine or provide a fuel-treatment gallon capacity. An engine starting aid and a fuel-storage additive serve different purposes. This 11...
    $32.94
    $36.23
    $32.94
    Out Of Stock
  • STA-BIL 360® Marine™ - 10oz *Case of 12*

    STA-BIL 360® Marine™ - 10oz *Case of 12* MPN - 22241CASE SKU: 78241
    MPN: 22241CASE

    $227.88
    $250.67
    $227.88
    This marine gasoline fuel treatment case contains 12 containers of 10 oz each. Calculated treatment capacity is up to 100 US gallons per container, or 1,200 US gallons across the case. Dose each fuel quantity separately. Marine gasoline fuel treatment is intended for the...
    $227.88
    $250.67
    $227.88
  • STA-BIL Carb Choke & Parts Cleaner - 12.5oz *Case of 12*

    STA-BIL Carb Choke & Parts Cleaner - 12.5oz *Case of 12* MPN - 22005CASE SKU: 78238
    MPN: 22005CASE

    $71.88
    $79.07
    $71.88
    This listing is a case of 12 carb and choke cleaner aerosol cans. Choose the case when multiple containers suit your approved service tasks; measure no fuel-tank dose for this cleaning aerosol. Gum, varnish and accumulated deposits can complicate carburetor maintenance. This carb and...
    $71.88
    $79.07
    $71.88
  • STA-BIL 360® Marine™ - 32oz *Case of 6*

    STA-BIL 360® Marine™ - 32oz *Case of 6* MPN - 22240CASE SKU: 78242
    MPN: 22240CASE

    $203.94
    $224.33
    $203.94
    This marine gasoline fuel treatment case contains 6 containers of 32 oz each. Calculated treatment capacity is up to 320 US gallons per container, or 1,920 US gallons across the case. Dose each fuel quantity separately. Marine gasoline fuel treatment is intended for the...
    $203.94
    $224.33
    $203.94
  • STA-BIL 360® Marine™ - 8oz *Case of 12*

    STA-BIL 360® Marine™ - 8oz *Case of 12* MPN - 22239CASE SKU: 78240
    MPN: 22239CASE

    $179.88
    $197.87
    $179.88
    This marine gasoline fuel treatment case contains 12 containers of 8 oz each. Calculated treatment capacity is up to 80 US gallons per container, or 960 US gallons across the case. Dose each fuel quantity separately. Marine gasoline fuel treatment is intended for the...
    $179.88
    $197.87
    $179.88
  • STA-BIL Diesel Formula Fuel Stabilizer & Performance Improver - 1 Gallon *Case of 4*

    STA-BIL Diesel Formula Fuel Stabilizer & Performance Improver - 1 Gallon *Case of 4* MPN - 22255CASE SKU: 78248
    MPN: 22255CASE

    $315.96
    $347.56
    $315.96
    This case contains four 1 gallon diesel-stabilizer containers. Calculated capacity is 1,280 US gallons in-season or 640 US gallons for storage per container; the case totals 5,120 US gallons in-season or 2,560 US gallons for storage. Diesel fuel care requires a product selected for...
    $315.96
    $347.56
    $315.96
  • STA-BIL Fuel Stabilizer - 1 Gallon *Case of 4*

    STA-BIL Fuel Stabilizer - 1 Gallon *Case of 4* MPN - 22213CASE SKU: 78239
    MPN: 22213CASE

    $227.96
    $250.76
    $227.96
    This gasoline storage stabilizer listing contains 4 containers of 1 gallon each. Calculated treatment capacity is up to 320 US gallons per container, or 1,280 US gallons across the case, at the published Storage rate. Seasonal equipment often remains unused with fuel still in...
    $227.96
    $250.76
    $227.96
  • STA-BIL Fuel Stabilizer - 16oz

    STA-BIL Fuel Stabilizer - 16oz MPN - 22207 SKU: 76935
    MPN: 22207

    $14.49
    $15.94
    $14.49
    The 16 oz gasoline storage stabilizer contains enough additive for up to 40 US gallons of fresh gasoline at the published rate. This is total package capacity across treatments, not a single-tank instruction. Seasonal equipment often remains unused with fuel still in the system....
    $14.49
    $15.94
    $14.49
  • STA-BIL Diesel Formula Fuel Stabilizer & Performance Improver - 32oz

    STA-BIL Diesel Formula Fuel Stabilizer & Performance Improver - 32oz MPN - 22254 SKU: 76932
    MPN: 22254

    $30.99
    $34.09
    $30.99
    The 32 oz diesel treatment provides different total capacities by use: up to 320 US gallons in-season, or 160 US gallons at the storage rate. Diesel fuel care requires a product selected for the fuel and operating pattern. This 32 oz diesel fuel stabilizer...
    $30.99
    $34.09
    $30.99

Check Product Compatibility


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Review Product Details


Check the size, quantity and included items to choose the right option for your task.

Follow Product Directions


Review manufacturer instructions for preparation, application and any use restrictions.

Product Selection Support


Need help choosing? Contact our team with your task and the product you are considering.

START WITH THE RIGHT APPLICATION

Four Checks Before Choosing a Marine Fuel Treatment

Narrow your options by fuel type, maintenance purpose, engine requirements and package quantity before comparing individual products.

  1. Match Your Fuel Type

    Choose a gasoline fuel treatment or marine diesel fuel treatment explicitly labeled for your fuel. Products from the same brand may have different compatibility requirements, so confirm the exact formula before purchasing.

  2. Define the Maintenance Task

    Decide whether you need routine marine fuel care, a targeted fuel-system cleaner or a boat fuel stabilizer for storage. Some formulas offer several functions, but the product’s stated application should guide your choice.

  3. Check Engine Storage Guidance

    When comparing marine fogging oil and other engine storage products, review the instructions for your engine make, model and configuration. EFI and carbureted engines may require different products or procedures.

  4. Verify Size & Package Quantity

    Compare bottle volume, labeled treatment capacity and units included. Marine fuel treatment case packs, individual bottles and multipacks should be checked separately so you order the quantity you intend to receive.

Match the Fuel Treatment to Your Fuel and Engine

Marine fuel treatment compatibility starts with the fuel your engine uses. A gasoline fuel stabilizer should not be selected for diesel unless the exact product explicitly permits that application. Likewise, a diesel fuel treatment should be checked against its stated purpose and current instructions.

For outboard fogging oil and seasonal engine storage products, confirm the engine make, model and manufacturer-approved procedure. Engine configuration matters, particularly when comparing EFI and carbureted applications. Product compatibility does not automatically establish the correct application method for every engine.

Before ordering, check these five details:

  • Fuel type and permitted fuel specification
  • Engine make and model
  • EFI or carbureted configuration, where relevant
  • Routine care, cleaning or storage requirement
  • Exact product formula and current directions

How to Choose the Right Marine Fuel Treatment

The right marine fuel treatment depends on your fuel, maintenance task and engine requirements. Follow these five checks to compare suitable products and select an appropriate package.

  1. Identify Your Fuel

    Confirm whether your engine uses gasoline or diesel and check its permitted fuel specification. Marine fuel additives should be selected by the exact formula’s compatibility information rather than its brand name or packaging color.

  2. Decide What You Need the Product to Do

    Separate routine fuel care from targeted cleaning and seasonal storage. A boat fuel stabilizer, fuel injector cleaner and engine fogging oil address different needs, although some products combine functions.

  3. Check the Exact Formula

    Read the product’s intended use and manufacturer directions. Similar names can refer to different concentrations, fuel applications or treatment purposes, so match the specific formula to your planned task.

  4. Compare Treatment Capacity

    Check how much fuel the product treats at the labeled rate for your intended application. Fuel treatment capacity depends on the formula and dose; a larger bottle does not automatically offer better value than a more concentrated alternative.

  5. Confirm the Package Before Ordering

    Verify bottle volume, units included and manufacturer part number. Choose an individual bottle, multipack or case based on your planned use, and check current availability and delivery information on the product page.

Routine Fuel Care, Targeted Cleaning or Seasonal Storage?

Marine fuel additives and engine storage products serve different purposes. Start with the job you need to complete, then check which functions the exact product is labeled to provide.

  1. Treat Fuel for Your Regular Maintenance Plan

    • Choose marine fuel additives labeled for your fuel type.
    • Compare the formula’s stated functions.
    • Check the recommended treatment dose.
    • Follow the specified application frequency.
    • Verify storage suitability separately from routine-use directions.

  2. Choose a Cleaner for the Stated Application

    • Match the marine fuel-system cleaner to the intended task.
    • Distinguish injector cleaners from fuel tank cleaners.
    • Verify fuel and system compatibility.
    • Follow the labeled dosing and application instructions.
    • Seek diagnosis for persistent running problems or suspected contamination.

  3. Plan Fuel and Internal Engine Protection Separately

    • Choose a boat fuel stabilizer suitable for your fuel.
    • Compare engine fogging oil as a separate storage product.
    • Verify engine compatibility and application requirements.
    • Follow your engine manufacturer’s storage guidance.
    • Include fuel care within the complete storage plan.

Compare Bottle Size, Treatment Capacity & Case Quantity

STA-BIL 360 Marine individual bottles and case packs compared against a light blue marina background.

Marine fuel treatment sizes should be compared alongside the exact formula’s labeled treatment rate. Bottle volume tells you how much product is supplied; treatment capacity tells you how much fuel it can treat for a stated application.

Package quantity is a separate check. An individual bottle, a multipack and a case contain different amounts of product. Before comparing bulk marine fuel treatments or boat fuel stabilizer case packs, confirm the volume per bottle, number of units and total package price.

Marine Fuel Treatment & Storage-Care Comparison

Use this marine fuel treatment comparison to distinguish product roles. Check the exact product label for fuel compatibility, dosing and application requirements before choosing a formula.

Treatment Type & Main Use Check Before Buying
Gasoline Fuel Treatments — Marine fuel additives for gasoline-powered boats. Check gasoline compatibility, intended use and the product’s treatment directions.
Diesel Fuel Treatments — Fuel care for marine diesel engines. Choose a diesel-compatible formula. Verify dosage and the benefits listed on its label.
Ethanol Fuel Treatments — Formulas intended for use with ethanol-blended gasoline. Check supported ethanol blends and engine compatibility before choosing a treatment.
Fuel System Cleaners — Products intended to help clean specified fuel-system components. Verify which components the formula treats and whether it suits your engine.
Marine Fuel Stabilizers — Fuel treatments for seasonal boat storage. Check fuel compatibility, storage duration and the manufacturer’s preparation instructions.
Engine Fogging Oils — Internal engine protection during storage. Follow your engine manufacturer’s storage procedure and confirm the approved application method.
Routine Marine Fuel Care — Treatments intended for regular maintenance. Check recommended usage frequency and dosage for your boat’s fuel volume.

What Our Customers Says

Essential fuel stabilizer for winter lay-up

Added this fuel treatment to the main tank prior to winter storage. It effectively prevents phase separation in ethanol gas and protects fuel lines, carbs, and injectors from corrosion during off-season downtime.
Ian McAllister Verified buyer
August 2026

Great engine fogging oil for winterization

Used this storage care fogging spray on my outboard engine cylinders before winterizing. Coat internal components evenly to prevent rust formation on cylinder walls during extended storage.
Gareth Palmer Verified buyer
July 2026

Smooth spring start-ups with zero clogged injectors

Treated the fuel system with this fuel additive throughout the boating season. After sitting all winter, the outboard fired right up on the first turn without rough idling or gummed-up fuel filters.
Simon Vance Verified buyer
June 2026

Effective carbon remover and fuel system cleaner

Noticeable improvement in throttle response and fuel economy after running this additive through a couple of fuel tanks. Cleans out carbon deposits and keeps fuel lines clean.
Warren Blake Verified buyer
May 2026

Fast shipping and reliable engine storage care

Arrived well-packaged in just a few days. High-quality fuel conditioner that keeps fuel fresh for up to two years and protects against moisture accumulation in marine tanks.
Douglas Sterling Verified buyer
April 2025

Prevents ethanol fuel degradation in humid weather

Living in a humid coastal area, water accumulation in fuel tanks is a major issue. This treatment stabilizes the fuel mixture and prevents phase separation effectively.
Graham Hawkins Verified buyer
March 2024

Must-have maintenance treatment for outboards and sterndrives

A crucial part of routine seasonal maintenance for any marine engine. Easy dosage instructions on the bottle and works great for both two-stroke and four-stroke applications.
Malcolm Reid Verified buyer
February 2024

Helpful Guides

Explore guides and tips related to this collection.

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How to Choose Marine Fuel Treatments for Gasoline and Diesel

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STA-BIL 360 Marine fuel stabilizer and STA-BIL Fogging Oil beside a covered boat.

Boat Fuel Stabilizer vs Fogging Oil: What Each Does

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STA-BIL 360 Marine bottles in different sizes beside a fuel treatment case pack.

Marine Fuel Treatment Sizes: Dose, Capacity and Case Packs

PACKAGE SELECTION • CAPACITY GUIDE Bottle Size Is Only One Part of the Comparison Compare the exact formula, labeled dose,...

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Frequently Asked Questions

How do I choose a marine fuel treatment for my boat?

Start with your fuel type and intended maintenance task. Compare marine fuel treatments labeled for that application, then verify the exact formula, treatment directions and your engine manufacturer’s guidance.

Is a marine fuel additive the same as a boat fuel stabilizer?

Not always. Marine fuel additive is a broad category, while fuel stabilization is a specific function. Some formulas combine cleaning, treatment and storage functions, so check the exact product rather than relying on the category name.

Can I use gasoline fuel treatment in a diesel engine?

Only if the exact product explicitly permits diesel use. Gasoline and diesel fuel additives are not automatically interchangeable, even when they come from the same manufacturer.

What is the difference between boat fuel stabilizer and fogging oil?

A boat fuel stabilizer treats compatible fuel, while engine fogging oil is intended for internal engine protection during storage. Some products combine functions, but the label and engine-approved application method determine how they should be used.

How much marine fuel treatment should I add?

Follow the exact product’s labeled dose for your fuel quantity and intended application. Marine fuel treatment dosage varies by formula, and routine-use directions may differ from storage or initial-treatment directions.

How long can a boat fuel stabilizer protect stored fuel?

The stated storage period depends on the exact formula and its directions. Check the current manufacturer label rather than applying one product’s storage claim to every boat fuel stabilizer.

Can I use the same outboard fogging oil procedure on every engine?

No universal procedure should be assumed. Check the guidance for your engine make, model and configuration, particularly when selecting outboard fogging oil for an EFI or carbureted engine.

Can I mix different marine fuel additives?

Do not combine marine fuel additives unless their manufacturers confirm that the products and application are compatible. Overlapping functions do not establish that formulas should be mixed.

Can a fuel-system cleaner fix old fuel or a running problem?

Do not assume a marine fuel-system cleaner can make unsuitable fuel usable or resolve a mechanical fault. Suspected contamination, persistent starting issues or running problems may require diagnosis and engine-manufacturer guidance.

What is the difference between a fuel treatment bottle and a case pack?

An individual bottle listing supplies the stated unit, while a fuel treatment case pack contains the specified number of units. Confirm bottle volume, package quantity and total price before ordering.

Need Help?

 Find the Right Product Information Before You Order 

Comparing boat fuel stabilizers, diesel fuel treatments or engine storage care? Share the details of your application so we can help you locate relevant product information and clarify the formula, size or package you are considering.

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