Boat Fuel Additives & Antifreezes

41 results
CategoryMarine Engine Parts & Accessories
CategoryBoat Fuel Additives & Antifreezes
Show In-Stock Only

Biobor JF Diesel Fuel Additive

Biobor

Biobor JF Diesel Fuel Additive

Available in 6 options

$20.75 - $4,821.79

In Stock
soltron16 of Soltron Soltron Enzyme Fuel Additive/Stabilizer

Soltron

Soltron Enzyme Fuel Additive/Stabilizer

Available in 2 options

$21.17 - $149.95

In Stock
StarTron® Gasoline/Diesel Additive

StarBrite

Star Tron Enzyme Fuel Treatment - Mid-Sized Engine Formula

Available in 6 options

$14.84 - $6,261.68

In Stock
22004 of Sta-Bil Fuel Starting Fluid

Sta-Bil Fuel

Starting Fluid

SKU: 1009425 | Item ID: SBL 22004

$4.49

In Stock
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Stanadyne Fuel Additive

Performance Formula Warm Weather Blend

Available in 5 options

$6.44 - $2,773.39

In Stock
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Stanadyne Fuel Additive

Lubricity Formula Diesel Fuel Additive

Available in 5 options

$6.14 - $2,596.57

In Stock
Marine Descaling Fluid - Concentrate

StarBrite

Marine Descaling Fluid - Concentrate

SKU: 1030130 | Item ID: STB 83900

$58.43

In Stock
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Stanadyne Fuel Additive

Performance Formula All-Season Diesel Fuel Additive

Available in 5 options

$7.98 - $3,272.93

In Stock
StarTron® Gasoline/Diesel Additive

StarBrite

Star Tron Enzyme Fuel Treatment - Large Engine Formula

Available in 5 options

$18.74 - $8,163.97

In Stock
EB Gasoline Ethanol Additive

Biobor

Biobor EB Gasoline Ethanol Additive

Available in 3 options

$16.43 - $43.89

In Stock
MD Diesel Conditioner

Biobor

MD Diesel Conditioner

Available in 4 options

$20.43 - $411.15

In Stock
Marine Descaling Fluid

StarBrite

Marine Descaling Fluid -

SKU: 1028062 | Item ID: STB 84000

$24.34

In Stock
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Stanadyne Fuel Additive

Gasoline Fuel Additive +

SKU: 443579 | Item ID: STY 38557P

$9.34

In Stock
Star Tron Enzyme Fuel Treatment - Gasoline Additive

StarBrite

Star Tron Enzyme Fuel Treatment - Small Engine Formula

Available in 3 options

$6.29 - $71.31

In Stock
Star Tron Stabilizer+ Fuel Storage

StarBrite

Star Tron Stabilizer+ Fuel Storage

Available in 2 options

$8.53 - $14.76

In Stock
STA-BIL Marine Formula Gasoline⁄Ethanol Fuel Stabilizer

Sta-Bil Fuel

Marine Formula Gasoline/Ethanol Treatment

Available in 4 options

$9.23 - $89.07

In Stock
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Stanadyne Fuel Additive

Performance Formula Injector Cleaner Diesel Fuel Additive

Available in 3 options

$8.77 - $29.94

In Stock
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Stanadyne Fuel Additive

Winter 1000 Diesel Fuel Additive

Available in 3 options

$9.77 - $2,084.18

In Stock
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Sta-Bil Fuel

Storage Formulation - Concentrated Fuel Stabilizer for Gasoline

Available in 6 options

$4.54 - $54.05

In Stock
BTE Liquid Coolant Additive

Baldwin Filters

BTE Cooling System Maintenance Treatment

Available in 3 options

$11.31 - $255.62

In Stock
HEET GAS LINE ANTIFEEEZE 12OZ

Sta-Bil Fuel

HEET Gas Line Antifreeze & Water Remover

SKU: 217348 | Item ID: SBL 28201

$2.27

In Stock
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Sta-Bil Fuel

Diesel Treatment

Available in 2 options

$23.99 - $78.99

In Stock
9570 of Sierra Carbon Free Aerosol Cleaner

Sierra

Carbon Free Aerosol Cleaner

SKU: 151503 | Item ID: SIE 18-9570-0

$10.27

In Stock
Marine Formula - Ethanol & Non-Ethanol Blended Fuels

Sta-Bil Fuel

Marine Formula - Ethanol & Non-Ethanol Blended Fuels

SKU: 1018086 | Item ID: SBL 22306

$159.68

In Stock
Fuel Stabilizer

Sierra

Marine Fuel Stabilizer - Gasoline Performance Additive

Available in 3 options

$7.07 - $48.54

In Stock
Power Blast Blue +32 Deg F Summer Formula Windshield Washer Fluid

Prime Guard

Power Blast Blue +32 Deg F Summer Formula Windshield Washer Fluid

SKU: 1043148 | Item ID: PMG 92106

$3.91

In Stock
18-9751-0 of Sierra Power Trim and Steering Fluid

Sierra

Power Trim and Steering Fluid

Available in 2 options

$4.89 - $10.27

In Stock
PEAK 50/50 EXTENDED LIFE ANTIFREEZE

Chevron

Delo ELC Extended Life 50/50 Engine Antifreeze / Coolant

SKU: 171840 | Item ID: W/S 50/50 EXTENDED LIFE

$17.34

In Stock
Test Tank Cleaner

BoatLife

Test Tank Cleaner

SKU: 210504 | Item ID: BTL 1127

$55.92

In Stock
84812 of StarBrite Fogging Oil

StarBrite

Fogging Oil

SKU: 86867 | Item ID: STB 84812

$8.79

In Stock
STA-BIL FOGGING OIL 12 OZ CAN

Sta-Bil Fuel

Fogging Oil Aerosol

SKU: 216978 | Item ID: SBL 22001

$5.49

In Stock
Fogging Oil

Sierra

Fogging Oil

Available in 2 options

$8.64 - $48.80

In Stock
CHEV SUP TURBO PWR NON-DIL (GREEN)

Chevron

Havoline Conventional Antifreeze / Coolant

SKU: 163875 | Item ID: W/S ENGINEANTIFREEZE

$15.93

In Stock
Prime Guard -50 Deg F RV Antifreeze - Glycerin Free

Prime Guard

Prime Guard -50 Deg F RV Antifreeze - Glycerin Free

SKU: 1034961 | Item ID: PMG PRIM95006

$9.71

In Stock
Star*Tron Fuel Tank Cleaner

StarBrite

Star Brite Star Tron Fuel Tank Cleaner

Available in 2 options

$67.06 - $244.67

Special Order Only
PT DIESEL H20 ABSORBER

StarBrite

Diesel Fuel Water Absorber

SKU: 64558 | Item ID: STB 84616

$278.85

Special Order Only
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StarBrite

LPC Multifunctional Diesel Additive

SKU: 384808 | Item ID: STB 095500

$359.43

Special Order Only
104+ MAX OCTANE BOOST 16 FL OZ

Sta-Bil Fuel

104+ Octane Boost - Maximum Formula

SKU: 216984 | Item ID: SBL 10410

$11.28

Out of Stock
8OZ DIESEL STORAGE ADDITIVE

StarBrite

Star Brite EZ-To-Store EZ-To-Start Diesel Additive

SKU: 86865 | Item ID: STB 84408

$151.24

Special Order Only
104+ OCTANE BOOST 16 FL OZ

Sta-Bil Fuel

104+ Octane Boost - Regular Formula

SKU: 216983 | Item ID: SBL 10406

$8.79

Out of Stock
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StarBrite

Ring Clean Plus

SKU: 448405 | Item ID: STB 95616

$18.71

Special Order Only
1-41 results of 41

Marine Fuel Additives and Treatments


Fisheries Supply carries marine fuel additives, antifreeze, and other essential products to maintain your boat's engine health and reliability. We offer a wide range of products from top brands like Starbrite, Sta-bil, and Stanadyne, ensuring your boat performs optimally in various marine conditions.

Importance of Marine Fuel Additives

Boat fuel additives are multi functional and crucial for enhancing fuel quality and engine performance. They prevent corrosion, reduce buildup, and ensure your engine runs smoothly. Stored fuel can oxidize in the tank, forming sediments from mold and bacteria. A good marine fuel stabilizer helps decompose these sediments before they contaminate your fuel lines and filters.

Types of Marine Fuel Additives


Fuel Stabilizers for Boats

Fuel stabilizers are essential for maintaining fuel quality during storage.

They:
  • Mitigate the harmful effects of ethanol, such as phase separation.
  • Repel water infiltration, protecting metal parts from rust.
  • Limit evaporation.
  • Preserve fuel freshness.

Marine Diesel Fuel Additives

Marine diesel additives improve fuel efficiency and protect against microbial growth.

They:
  • Enhance cetane levels.
  • Provide lubrication.
  • Prevent algae and bacterial growth.

Fuel Treatment for Boats

Marine fuel treatments help with fuel related problems. They also clean and protect the combustion system.

They:
  • Remove carbon deposits.
  • Dissolve gum and varnish buildup.
  • Prevent new deposit formation.

How to Use Marine Fuel Additives

Incorporating fuel additives into your maintenance routine is simple:
  • Follow Manufacturer's Dosage: Each product has a recommended dosage amount. Adhere to these guidelines for optimal results.
  • Regular Use: Add fuel additives every time you refuel to maintain consistent protection and performance.
  • Seasonal Storage: To prevent fuel degradation, use stabilizers for either gas or diesel before storing your boat for the off-season.

Additional Products for Boat Maintenance

Fisheries Supply also offers:
  • Antifreeze Coolants: Protect your engine from freezing and overheating.
  • Fogging Oils: Preserve engine components during storage.
  • Carb Cleaners and Engine Flushes: Ensure your engine combustion remains clean. This increases fuel efficiency
Maintaining your boat's engine health is essential for a trouble-free boating experience. Fisheries Supply offers high-quality marine fuel additives and treatments, protecting your investment and allowing you to enjoy optimal performance in various marine conditions. For more information, please contact our representatives today.

Shop for your fuel additive for boats now and save – or browse our wide selection of boat motor oil.