(2 pack) STA-BIL Marine Tune Up, 16 oz.– Fixes Rough Running Engines – Treats up to 50 Gallons – 16 oz
(2 pack) STA-BIL Marine Tune Up, 16 oz.– Fixes Rough Running Engines – Treats up to 50 Gallons – 16 oz
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(2 pack) STA-BIL Marine Tune Up, 16 oz.– Fixes Rough Running Engines – Treats up to 50 Gallons – 16 oz

|6 ratings
(2 pack) STA-BIL Marine Tune Up, 16 oz.– Fixes Rough Running Engines – Treats up to 50 Gallons – 16 oz2 pack STA BIL Marine Tune Up 16 oz Fixes Rough Running Engines Treats up to 50 Gallons 16 ozSTA BIL Marine Tune Up 16 oz Fixes Rough Running Engines Treats up to 50 Gallons 16 oz4 pack STA BIL Marine Tune Up 16 oz Fixes Rough Running Engines Treats up to 50 Gallons 16 oz3 pack STA BIL Marine Tune Up 16 oz Fixes Rough Running Engines Treats up to 50 Gallons 16 oz
Pack Size:2 Pack

Key item features

  • Engine Revitalization: Effectively fixes rough running engines by dissolving gum and varnish from the fuel system, and cleans carburetors and injectors for improved performance.
  • Fuel System Protection: Fights rust and corrosion within the fuel system, and provides a long-lasting protective coating against moisture and ethanol damage.
  • Enhanced Efficiency: Maximizes gallons per hour (GPH) by helping the engine burn fuel more efficiently, and lubricates valves and pistons.
  • Water Elimination: Removes water from the marine fuel system by penetrating deep into the fuel line, preventing related issues.
  • Broad Compatibility: Suitable for all watersport engines, including smaller boats, personal watercraft, and jet skis.
  • Simple Application: Easy to use with a 1 oz. per 2.5 gallons of fuel ratio; pour directly into the fuel tank, top off, and run the engine for 15 minutes.
  • Extended Potency: STA-BIL branded products remain effective for up to two years after the bottle has been opened.
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Current price is $23.9474.8 ¢/fl oz
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This item includes:

  • 2-pack of STA-BIL Marine Tune Up, 16 oz.– Fixes Rough Running Engines – Treats up to 50 Gallons – 16 oz
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4.3 out of 5 stars
stars6 ratings3 reviews
How item rating is calculated
  1. 5 stars67% (4)
  2. 4 stars17% (1)
  3. 3 stars0% (0)
  4. 2 stars17% (1)
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Showing 1-3 of 3 reviews

Jan 16, 2026
WalmartCustomer
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Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Good product and good price

Incentivized Review
Helpful?6M27K0P8D20317892069893
Mar 13, 2026
chawbert
Item details
Multipack quantity: 1
4 out of 5 stars review

Verified Purchase

Helped hard starting

I used this on my lawn tractor in the winter while using the snowblower attachment to plow snow. The tractor has sat for months before using it and after changing the fuel filter and new gas it was still hard to start and rough running until it warmed up. After dropping a capful in the tank and letting it run for a few minutes it started easier and ran better for the next 5 storms. I ended up using another capful in a full tank and it's running a little better and easier to start.

Helpful?6M27K0P8D20317892069893
Mar 29, 2025
austin
Item details
Multipack quantity: 1
2 out of 5 stars review

Verified Purchase

Busted up

Top was busted up when I opened the box

Helpful?6M27K0P8D20317892069893
reply from Gold Eagle Product Expert

We are disappointed to hear of this experience. Please feel free to contact Gold Eagle, the manufacturer, for assistance. We appreciate your feedback!