STA-BIL 360 Marine Fuel System Treatment, 32 oz – Treats 320 Gallons – Fuel System Cleaner & Injector Cleaner for Boats & Watercraft, Removes Water, Prevents Corrosion & Ethanol Damage
STA-BIL

STA-BIL 360 Marine Fuel System Treatment, 32 oz – Treats 320 Gallons – Fuel System Cleaner & Injector Cleaner for Boats & Watercraft, Removes Water, Prevents Corrosion & Ethanol Damage

$19.99$24.13★ 4.8(8,003 reviews)
Mubboo Score 5.6/10
  • FUEL SYSTEM CLEANER: Cleanses the entire fuel system using PEA additives, including fuel injectors, lines, & fuel pumps. This advanced formu…
  • CORROSION PROTECTION: Industry-leading rust and corrosion protection & designed for in-season cleaning & the protection of internal fuel sys…
  • PERFORMANCE BOOSTER: Designed to optimize fuel performance which contributes to enhanced gas mileage & improved engine power. This advanced …
  • DIRECTIONS: Pour directly into fuel tank prior to fill up. Use 1 oz for every 10 gallons of fuel. Run the engine for 5 minutes to treat the …
  • YEAR-ROUND PROTECTION: Pair STA-BIL In-Season Marine Protection with STA-BIL Storage, providing a complete solution for both in-season opera…
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Mubboo Value Score: 5.6/10

Quality9.6/10
based on 4.8/5 customer rating
Popularity3.3/10
8,003 reviews, top 19% in Fuel Additives
Value4.0/10
priced below 40% of Fuel Additives

How it stacks up

Rated 4.8/5 — better than 100% of 53 Fuel Additives we track. Mid-tier pricing at $19.99.

Head-to-Head vs Category Leader

STA-BILLucas Oil (Leader)
Price$19.99$9.89
Rating4.8/54.8/5
Reviews8,00324,615
Mubboo Score5.6/109.0/10

The STA-BIL 360 Marine Fuel System Treatment, 32 oz matches or exceeds the category leader in rating at a similar price point.

Quick Specs

Shape
Round
Theme
Sports
Crystal
Sapphire Crystal
Display
Analog
Band Color
Blue
Clasp Type
Buckle
Dial Color
Blue
Face Style
Classic

What reviewers say

Synthesized from 40 reviews · 100% verified purchases.

For maximum cleaning power, choose a product with high PEA content like Red Line SI-1 or Chevron Techron, but expect to use multiple treatments for severe deposits. For long-term storage, use a dedicated stabilizer such as STA-BIL or Star Tron to prevent gum and starting problems.

Rating reliability

Well reviewed — reliable rating
🟢 Sold & shipped by Amazon

About STA-BIL

  • 54 products in our database
  • Average rating: 4.8/5 across all products
  • Price range: $2 – $176.24
  • Categories: Fuel Additives, Motor Oil, Pressure Washers

Other Fuel Additives

STA-BIL Storage Fuel Stabilizer - 32 oz
STA-BIL Storage Fuel Stabilizer - 32 oz
$10.61 ★4.8
Star Tron Enzyme Fuel Treatment Concentrate
Star Tron Enzyme Fuel Treatment Concentrate
$19.19 ★4.8
Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce (2 Pack)
Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce (2 Pack)
$30.99 ★4.8
Red Line SI-1 Complete Fuel System Cleaner - 15 oz
Red Line SI-1 Complete Fuel System Cleaner - 15 oz
$17.47 ★4.8

Frequently Asked Questions

Is the STA-BIL STA-BIL 360 Marine Fuel System Treatment, 32 oz – Treats 320 G worth buying in 2026?

It earns a Mubboo Score of 5.6/10, with a 4.8/5 rating from 8,003 reviews — better than 100% of Fuel Additives we track.

How much does the STA-BIL STA-BIL 360 Marine Fuel System Treatment cost?

It is currently $19.99 — mid-tier pricing for Fuel Additives.

How does it compare to the top-rated Fuel Additives?

The STA-BIL 360 Marine Fuel System Treatment, 32 oz matches or exceeds the category leader in rating at a similar price point.

Sources & References

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