Fuel Treatment
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Starbrite Star Tron Diesel Add Gallon 93100N
Starbrite
$256.79 $160.94Starbrite Star Tron Diesel Add Gallon 93100N • Makes any engine run more smoothly, start more easily Eliminates & prevents carbon deposits Stabilizes fuel, greatly reduces soot & other emissions...- Part Number:
- 74-93100
- Availability:
- In Stock - Ships same or next business day.
- Size:
- Gallon
- Treats:
- 4096 gal.
$256.79 $160.94 -
Starbrite Star Tron Diesel Additive 32Oz 93132
Starbrite
$68.39 $46.96Starbrite Star Tron Diesel Additive 32Oz 93132 • Makes any engine run more smoothly, start more easily Eliminates & prevents carbon deposits Stabilizes fuel, greatly reduces soot & other emissions...- Part Number:
- 74-93132
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 32 oz.
- Treats:
- 1024 gal.
$68.39 $46.96 -
Starbrite Startron Ring Clean 16Oz 95616
Starbrite
$25.59 $21.87Starbrite Startron Ring Clean 16Oz 95616 • Formulated with the latest technology in deposit control compounds, plus a proprietary enzyme package designed to remove existing deposits and help prevent...- Part Number:
- 74-95616
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 16 oz (473 ml)
$25.59 $21.87 -
STA-BIL Marine Formula 10oz 22241
STA-BIL
$14.89 $9.26STA-BIL Marine Formula 10oz 22241 Ethanol Treatment & Performance Improver Extra corrosion protection & fuel system cleaning Recommended to be used at every fill up, not just for seasonal storage- Part Number:
- 269-22241
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 10 oz.
- Treats:
- 100 gal.
$14.89 $9.26 -
Sold Out, please call for ETA.
Starbrite Diesel Storage Additive 8 (W) 84408
Starbrite
$15.19 $11.00Starbrite Diesel Storage Additive 8 (W) 84408 • Protects fuel and engine components during storage• Eliminates need to fog engine, prevents corrosion of fuel tank and fuel delivery system, stops...- Part Number:
- 74-84408
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 8 oz.
- Treats:
- 80 gal.
$15.19 $11.00 -
Sold Out, please call for ETA.
Starbrite Star Tron Shooter 1Oz Twin 2 Pack 14301
Starbrite
$10.99 $6.59Starbrite Star Tron Shooter 1Oz Twin 2 Pack 14301 • Compact, handy size is ideal for outboards, outdoor power equipment, lawn and garden equipment, motorcycles, snowmobiles, ATV's, scooters, chain...- Part Number:
- 74-14301
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 1oz.
- Treats:
- 6 Gals.
- Pack:
- 2
$10.99 $6.59 -
Starbrite Star Tron Tank Cleaner Gallon 93600
Starbrite
$94.49 $85.62Starbrite Star Tron Tank Cleaner Gallon 93600 • Gasoline and diesel fuel tank cleaner for the tank that has extremely heavy sludge and related deposits before starting on a regular Star tron...- Part Number:
- 74-93600
- Availability:
- In Stock - Ships same or next business day.
- Size:
- Gallon
- Treats:
- 500 gal.
$94.49 $85.62 -
STA-BIL Gas Stabilizer 1 Gallon 22213
STA-BIL
$60.99 $56.87STA-BIL Gas Stabilizer 1 Gallon 22213 Keeps fuel fresh for quick, easy starts after storage Removes water according to OEM specs to prevent corrosion Cleans carburetors and fuel injectors <- Part Number:
- 269-22213
- Availability:
- In Stock - Ships same or next business day.
- Size:
- Gallon
- Treats:
- 320 gal.
$60.99 $56.87 -
STA-BIL Isoheet Fuel Antifreeze/Water Remover 12oz 28202
STA-BIL
$5.00 $4.99STA-BIL Isoheet Fuel Antifreeze/Water Remover 12oz 28202 #1 selling Brand of premium gas-line antifreeze Absorbs 5 times more water than regular gas-line antifreeze Cleans fuel injectors and...- Part Number:
- 269-28202
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 12 oz.
- Treats:
- 20 gals.
$5.00 $4.99 -
Starbrite Gas Storage Additive 1 Gal. 84300
Starbrite
$110.39 $70.40Starbrite Gas Storage Additive 1 Gal. 84300 • Protects gas and engine components during storage• For inboard and outboard gas engines• Eliminates need to fog engine- Part Number:
- 74-84300
- Availability:
- In Stock - Ships same or next business day.
- Size:
- Gallon
- Treats:
- 640 gal.
$110.39 $70.40 -
Starbrite Star Tron Gas Additive 5 Gallon 93005
Starbrite
$881.09 $516.79Starbrite Star Tron Gas Additive 5Gallon 93005 • Cures & prevents ethanol fuel problems• Makes any engine run more smoothly, start more easily• Eliminates & prevents gum, varnish and carbon deposits<- Part Number:
- 74-93005
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 5 Gallon
- Treats:
- 10 -000 gal.
$881.09 $516.79 -
CRC Diesel Conditioner with Anti-Gel 5432
CRC
$21.39 $18.00CRC Diesel Conditioner with Anti-Gel 5432 Prevents diesel fuel from gelling in cold temperatures. Lowers pour point by as much as 35°F. Cleans injectors and helps restore spray pattern for more...- Part Number:
- 77-05432
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 30 oz.
- Treats:
- 125 gal.
$21.39 $18.00 -
STA-BIL 104+ Octane Boost 10406
STA-BIL
$12.19 $9.59STA-BIL 104+ Octane Boost 10406 Increases octane effect up to 5 points Restores lost horsepower Stops engine knocks & pings Cleans fuel injector- Part Number:
- 269-10406
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 16 oz.
- Treats:
- 16 gal.
$12.19 $9.59 -
Sold Out, please call for ETA.
STA-BIL Fuel System Revitalizer - Disp 2oz @8 21214
STA-BIL
$12.05STA-BIL Fuel System Revitalizer - Disp 2oz @8 21214 Designed to ensure easy starting of small utility and recreational engines, smooth rough idling and stalling, and helps remove gum and varnish from...- Part Number:
- 269-21214
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Counter Display
- Size:
- 2 fl. oz.
$12.05 -
STA-BIL Gas Stabilizer 4oz 22204
STA-BIL
$10.29 $6.02STA-BIL Gas Stabilizer 4oz 22204 Keeps fuel fresh for quick, easy starts after storage Removes water according to OEM specs to prevent corrosion Cleans carburetors and fuel injectors- Part Number:
- 269-22204
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 4 oz.
- Treats:
- 10 gal.
$10.29 $6.02 -
STA-BIL Marine Formula Gallon 22250
STA-BIL
$96.29 $80.87STA-BIL Marine Formula Gallon 22250 Ethanol Treatment & Performance Improver Extra corrosion protection & fuel system cleaning Recommended to be used at every fill up, not just for seasonal storage- Part Number:
- 269-22250
- Availability:
- In Stock - Ships same or next business day.
- Size:
- Gallon
- Treats:
- 1 -280 gal.
$96.29 $80.87 -
Starbrite Gas Storage Additive-32 Oz (W 84332
Starbrite
$32.59 $24.53Starbrite Gas Storage Additive-32 Oz (W 84332 • Protects gas and engine components during storage• For inboard and outboard gas engines• Eliminates need to fog engine- Part Number:
- 74-84332
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 32. oz.
- Treats:
- 160 gal.
$32.59 $24.53 -
Starbrite Marine Boat Winterize Storage Fogging Oil (1 Gallon) 84800
Starbrite
$67.79 $57.91Starbrite Marine Boat Winterize Storage Fogging Oil (1 Gallon) 84800 • Prevents corrosion when storing inboard or outboard engines for an extended period of time• Special formula makes starting...- Part Number:
- 74-84800
- Availability:
- In Stock - Ships same or next business day.
- Size:
- Gallon
$67.79 $57.91 -
Starbrite Star Tron Diesel Additive 16Oz 93116
Starbrite
$39.79 $29.22Starbrite Star Tron Diesel Additive 16Oz 93116 • Makes any engine run more smoothly, start more easily Eliminates & prevents carbon deposits Stabilizes fuel, greatly reduces soot & other emissions...- Part Number:
- 74-93116
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 16 oz.
- Treats:
- 512 gal.
$39.79 $29.22 -
Starbrite Star Tron Diesel Additive 5Gallon 93105
Starbrite
$1,234.39 $719.38Starbrite Star Tron Diesel Additive 5Gallon 93105 • Makes any engine run more smoothly, start more easily Eliminates & prevents carbon deposits Stabilizes fuel, greatly reduces soot & other emissions...- Part Number:
- 74-93105
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 5 Gallon
- Treats:
- 20 -480 gal.
$1,234.39 $719.38
Fuel Treatment for Boats
Protect your engine and improve performance with premium boat fuel treatment products from PowerBoatSupply.com. Whether you need gas stabilizers, diesel additives, or complete marine fuel system cleaners, our wide selection from trusted brands like STA-BIL, Star Tron, and CRC keeps your boat’s fuel fresh and your engine running at peak performance. A small investment in the right marine fuel additive can prevent costly repairs and extend the life of your engine.
Why Use Fuel Treatment in Your Boat?
Modern fuels often contain ethanol, which attracts water and can cause corrosion, fuel separation, and hard starts in marine engines. The right fuel stabilizer prevents fuel breakdown during storage, while additives clean injectors and carburetors for smoother operation. For diesel-powered boats, specialized diesel fuel additives prevent gelling, improve lubricity, and protect against microbial growth in fuel tanks.
Our Fuel Treatment Selection
We carry a complete line of fuel treatments and additives for both gas and diesel engines, including:
- Fuel stabilizers – Keep gasoline fresh during long-term storage
- Marine fuel system cleaners – Remove carbon deposits and varnish buildup
- Diesel fuel additives – Prevent gelling and improve winter performance
- Water absorbers – Eliminate excess moisture from fuel tanks
From seasonal storage to everyday boating, our inventory has the right solution to maintain your boat’s engine health and efficiency.
When Should You Use Marine Fuel Additives?
Fuel treatments are especially important before storing your boat for winter. Add a stabilizer to your fuel tank and run the engine so treated fuel circulates through the system. For frequent boaters, using a cleaner every few fill-ups helps reduce carbon deposits and maintain smooth throttle response. Diesel boat owners should use additives year-round to prevent injector wear and keep fuel flowing in cold weather.
Shop Fuel Treatment Products Online
PowerBoatSupply.com makes it easy to shop for boat fuel stabilizers, cleaners, and diesel fuel additives from leading marine brands. With fast shipping, competitive pricing, and our decades of experience in marine parts and accessories, you can trust us to keep your boat’s fuel system in top condition. Order today and protect your engine for seasons to come.