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 Fogging Oil - 12oz

    STA-BIL Fogging Oil - 12oz MPN - 22001 SKU: 76928
    MPN: 22001

    $7.99
    $8.79
    $7.99
    Choose the 12 oz fogging-oil aerosol for an engine-approved internal preservation procedure; fuel-tank dosing capacities do not apply. Fuel storage and internal engine preservation address different parts of a lay-up plan. This 12 oz engine storage fogging oil is an aerosol treatment intended to...
    $7.99
    $8.79
    $7.99
  • STA-BIL 360® Marine™ - 1 Gallon

    STA-BIL 360® Marine™ - 1 Gallon MPN - 22250 SKU: 76927
    MPN: 22250

    $163.49
    $179.84
    $163.49
    The 1-gallon marine-treatment package is the largest single Marine package in this batch. At the documented rate it provides up to 1,280 US gallons of total treatment capacity. Marine gasoline fuel treatment is intended for the fuel-care needs of gasoline-powered boats and other suitable...
    $163.49
    $179.84
    $163.49
  • STA-BIL Fuel Stabilizer - 32oz

    STA-BIL Fuel Stabilizer - 32oz MPN - 22214 SKU: 76922
    MPN: 22214

    $17.49
    $19.24
    $17.49
    Choose the 32 oz gasoline stabilizer when a quart-size purchase suits the fresh fuel you plan to store. At the documented rate, total-container capacity is up to 80 US gallons. Seasonal equipment often remains unused with fuel still in the system. A gasoline storage...
    $17.49
    $19.24
    $17.49
  • STA-BIL Diesel Formula Fuel Stabilizer & Performance Improver - 1 Gallon

    STA-BIL Diesel Formula Fuel Stabilizer & Performance Improver - 1 Gallon MPN - 22255 SKU: 76933
    MPN: 22255

    $86.49
    $95.14
    $86.49
    The 1-gallon diesel fuel stabilizer contains 128 US fl oz. Calculated package capacity is up to 1,280 US gallons in-season or 640 US gallons for storage, using the respective manufacturer rates. Diesel fuel care requires a product selected for the fuel and operating pattern....
    $86.49
    $95.14
    $86.49
  • STA-BIL Fuel Stabilizer - 1 Gallon

    STA-BIL Fuel Stabilizer - 1 Gallon MPN - 22213 SKU: 76923
    MPN: 22213

    $62.49
    $68.74
    $62.49
    Choose the 1-gallon gasoline stabilizer when a larger purchase quantity suits your storage plans. At the documented rate, total-container capacity is up to 320 US gallons. Seasonal equipment often remains unused with fuel still in the system. A gasoline storage fuel stabilizer is intended...
    $62.49
    $68.74
    $62.49
  • STA-BIL 360® Marine™ - 8oz

    STA-BIL 360® Marine™ - 8oz MPN - 22239 SKU: 76924
    MPN: 22239

    $16.49
    $18.14
    $16.49
    The 8 oz marine-treatment package is the smallest listed Marine size in this batch. At the documented rate it provides up to 80 US gallons of total treatment capacity. Marine gasoline fuel treatment is intended for the fuel-care needs of gasoline-powered boats and other...
    $16.49
    $18.14
    $16.49
  • STA-BIL Fuel Stabilizer - 10oz

    STA-BIL Fuel Stabilizer - 10oz MPN - 22206 SKU: 76934
    MPN: 22206

    $10.99
    $12.09
    $10.99
    The 10 oz gasoline storage stabilizer contains enough additive for up to 25 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....
    $10.99
    $12.09
    $10.99
  • STA-BIL 360® Marine™ - 32oz

    STA-BIL 360® Marine™ - 32oz MPN - 22240 SKU: 76926
    MPN: 22240

    $37.49
    $41.24
    $37.49
    Choose the 32 oz marine treatment when a quart-size purchase fits your refueling plans. At the documented rate it provides up to 320 US gallons of total treatment capacity. Marine gasoline fuel treatment is intended for the fuel-care needs of gasoline-powered boats and other...
    $37.49
    $41.24
    $37.49
  • STA-BIL 360® Marine™ - 10oz

    STA-BIL 360® Marine™ - 10oz MPN - 22241 SKU: 76925
    MPN: 22241

    $20.99
    $23.09
    $20.99
    The 10 oz marine-treatment package offers a different purchase quantity from the 8 oz listing. At the documented rate it provides up to 100 US gallons of total treatment capacity. Marine gasoline fuel treatment is intended for the fuel-care needs of gasoline-powered boats and...
    $20.99
    $23.09
    $20.99
  • STA-BIL Starting Fluid - 11oz

    STA-BIL Starting Fluid - 11oz MPN - 22004 SKU: 76930
    MPN: 22004

    $5.99
    $6.59
    $5.99
    Choose the 11 oz starting-fluid aerosol only after confirming engine approval for a starting aid. It is not sold as a fuel-storage treatment. An engine starting aid and a fuel-storage additive serve different purposes. This 11 oz engine starting fluid is an aerosol product...
    $5.99
    $6.59
    $5.99
  • STA-BIL Carb Choke & Parts Cleaner - 12.5oz

    STA-BIL Carb Choke & Parts Cleaner - 12.5oz MPN - 22005 SKU: 76921
    MPN: 22005

    $6.99
    $7.69
    $6.99
    Choose this directed aerosol for an approved carburetor and choke cleaning task. Check the can’s directions and component suitability before use. Gum, varnish and accumulated deposits can complicate carburetor maintenance. This carb and choke cleaner aerosol is formulated for those cleaning tasks on suitable...
    $6.99
    $7.69
    $6.99

Check Product Compatibility


Match the product to your surface, finish, tool or equipment before ordering.

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

SEASONAL STORAGE • PRODUCT COMPARISON Fuel Preservation and Internal Engine Protection Have Different Roles A boat fuel stabilizer treats compatible...

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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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