Should I really use STA-BIL 360 Marine before every fill-up? Is it truly necessary?

To be blunt, yes, especially if you want to protect your investment. Boats live in a high-moisture environment. STA-BIL 360 Marine is engineered to protect your tank from corrosion and optimize the fuel in the process.

If the color of the liquid in the bottle is no longer blue, is it still safe to use?

Yes. It is possible for the dye in the formula to fade, but it is still perfectly functional.

What happens if I add too much fuel additive to my tank? Will it harm the engine?

No. Overpouring will not cause significant damage to your fuel tank. However, it’s best practice to avoid making this a habit. Miscalculating by an ounce here or there, so long as it is not over four total ounces, is acceptable.

Stabil 22239 Marine Fuel Stabilizer 8 Oz

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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B/.96

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Panama.

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Description

🛥️ Keep your engine running smooth, no matter the waves!

COMPACT CLEAR - Small, clear HDPE bottle fits neatly in your marine toolkit without adding bulk.
EXTENDED FUEL LIFE - Keeps gasoline fresh for months, preventing costly engine issues and downtime.
MARINE GRADE FORMULA - Specifically engineered to protect your boat’s engine from corrosion and fuel degradation.
PRECISION 8 OZ DOSING - Easy-to-measure size ensures no waste and perfect fuel stabilization every time.
TRUSTED BY PROFESSIONALS - 4.8-star rating from over 1,800 users proves it’s the go-to stabilizer for serious boaters.

STA-BIL 22239 Marine Fuel Stabilizer is an 8 oz high-density polyethylene bottle of premium fuel additive designed to keep gasoline fresh and marine engines protected from corrosion and fuel breakdown. With a 4.8-star rating from over 1,800 reviews, it’s the trusted choice for boat owners seeking reliable, long-lasting fuel performance.

Specifications

ASIN	B000UJG0LE
Best Sellers Rank	#59,191 in Automotive ( See Top 100 in Automotive ) #268 in Oil & Fluid Additives
Brand	STA-BIL
Brand Name	STA-BIL
Capacity	8 Fluid ounces
Color	Clear
Colour	Clear
Customer Reviews	4.8 out of 5 stars 1,813 Reviews
Fuel Type	Gasoline
Fuel type	Gasoline
Global Trade Identification Number	00073905222396, 30073905223097
Item Weight	245 g
Item weight	245 g
Material	High Density Polyethylene (HDPE)
Model Number	22239
Part Number	770-176
UPC	073905222396 182682942097
Unit Count	1 Count

Reviews

R**R

Excellent

Best stabiliser I have found. Run it in my Bf115 Honda outboard.

18.02.2026

F**I

Easy to measure and use.

Easy to use and economical additive for boat fuel.

21.01.2026

S**.

Only time will tell.

It seems not as my fuel separator has no water in it but only time will tell.

23.06.2024

T**R

Does exactly what it’s supposed to

Easy to use and prices right

8.07.2026

M**.

Great fuel stabiliser!

Use this to store petrol in a 20 litre jerry can to fill boat and lawnmower tanks. The petrol seems to keep forever!

3.08.2025

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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B/.96

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Panama.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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