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Sta-Bil STAB22239 Marine Formula Fuel Stabilizer 8 oz

Part of: Sta-Bil Marine Formula Fuel Stabilizer

Other options in this family: Sta-Bil STAB22240

Manufacturer

Picture for manufacturer Sta-Bil

Part Number

STAB22239
6 reviews
Sale Price

$9.07

In Stock (10+)

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Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

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Product Details

STA-BIL Marine Formula Fuel Stabilizer is specifically engineered for marine engines and watercraft, providing superior fuel protection in the harsh, moisture-rich environments boats operate in. This 8 oz bottle treats up to 20 gallons of gasoline, keeping fuel fresh for up to 12 months during storage.

Key Features:

  • Prevents fuel degradation and gum/varnish buildup in carburetors, injectors, and fuel lines
  • Contains a corrosion inhibitor to protect metal fuel system components from moisture and ethanol-blended fuels
  • Specially formulated for marine use — safe for all 2- and 4-stroke gasoline engines including outboards, personal watercraft, and stern drives
  • Keeps fuel fresh for up to 12 months of storage
  • Treats up to 20 gallons per 8 oz bottle
  • Helps engines start on the first try after extended storage periods
  • Safe for use with ethanol-blended fuels (E10, E15)
  • No need to run engine after treatment — simply add to fuel tank

STA-BIL Marine Formula is the trusted choice for boat owners looking to protect their investment during off-season storage or extended periods of inactivity. Regular use throughout the boating season also helps maintain peak engine performance and fuel system cleanliness.

I haven't used it yet, waiting for other items to arrive.

I never received anything about shipping so I contacted customer support. They said it was a direct shipment and they would check on it for me and get back to me. I never heard back from them. Shortly after that I did receive a message from the carrier saying they have my shipment and scheduled a delivery. They said they would call me 30 mins before the delivery so I could get off work and come to inspect it before signing for it. That didnt' happen either my wife called me first thing in the morning and say they are here delivering it now so I had to run home so I could inspect it. The driver was really nice and waited for me to get there.

You had what I needed for a rare bike, and I appreciated that.

Great price, good quality, and excellent communication

Quick ship. Thanx

Good pricing easy checkout process I hope I don’t get catfish

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