Mercury – Quickstor Fuel Treatment and Stabilizer | Fuel Care System | Liquid Formula | 8M0058692

Overview

There’s a certain reassurance that comes from putting a machine away for the season and knowing it’ll wake up months later without a fight. Whether it’s your boat, your snowmobile, or the mower you rely on every summer, nothing’s worse than stale fuel turning that first start into an unexpected project. Mercury Quickstor Fuel Treatment and Stabilizer gives you the confidence to store your equipment without worry. It keeps fuel fresh, stable, and ready, so when you turn the key after a long break, the engine responds like it never missed a day.

Key Features

• Prevents regular and ethanol-blended gasoline from breaking down or oxidizing
• Stabilizes fuel for up to 2 years
• Use before long-term storage — 1 oz treats 5 gallons of fuel
• Helps prevent gum, varnish, and harmful deposits from forming
• Lubricates injectors and carburetors during storage
• NMMA Certified by the Gasoline Protection Program
• 32 oz bottle
• Mercury Marine part number 8M0058692

Engine & Boat Compatibility

• Works with most Mercury outboards across many horsepower ranges
• Compatible with gasoline sterndrives and inboard systems
• Ideal for center consoles, pontoons, runabouts, fishing boats, and cruisers
• Safe for two-stroke and four-stroke engines, carbureted or fuel-injected
• Also suitable for ATVs, motorcycles, cars, trucks, snowmobiles, lawn equipment, chainsaws, and other gasoline-powered tools
• Safe for catalyzed engines

Performance & Practical Benefits

Quickstor is one of those products that quietly prevents the headaches most boaters and equipment owners know too well. Fuel naturally begins to break down when it sits, and ethanol blends make the problem even worse by attracting moisture. The result? Corrosion, gumming, clogged injectors, and the kind of varnish that turns a smooth-running engine into a sputtering chore.

Quickstor stops all of that before it starts. It stabilizes the gasoline, keeping it fresh and ready for long storage — not just months, but up to two years. That’s a huge difference when life gets busy and gear stays tucked away longer than expected. You’ll also notice how much easier engines start after sitting. Instead of coughing through old fuel or stumbling through warm-up, the motor fires cleanly and settles into a steady rhythm.

Another benefit is the lubrication it provides to injectors and carburetor components. When engines sit unused, metal parts can dry out, leading to sticking, seizing, or uneven fuel delivery. Quickstor adds a protective layer that keeps everything smooth and protected so the system stays ready for the next start.

The end result is simple: less maintenance, fewer surprises, and equipment that feels reliable every time you bring it back to life.

Why Buy OEM

A genuine Mercury Marine part gives you more than a bottle of stabilizer — it gives you the trust earned through decades of testing in real conditions. From rough saltwater environments to cold-weather storage, Mercury engineers design their products to outlast and outperform generic options. Aftermarket stabilizers might look similar on paper, but they rarely match the consistency, longevity, or protection of an OEM product. When you invest in your engine, it makes sense to choose something built to protect it the right way, the first time.

FAQ

Q1: Which Mercury engines does Quickstor fit?

Quickstor works with most gasoline-powered Mercury engines, including outboards, sterndrives, and inboards.

Q2: How is this different from aftermarket stabilizers?

It’s formulated to Mercury’s OEM standards, offering longer-lasting stability and better protection against ethanol-related issues.

Q3: How do I know if this is right for my setup?

If you plan to store a gasoline engine for more than a few weeks, Quickstor is the correct treatment.

Q4: Can this be used in saltwater and freshwater environments?

Yes. It works in any gasoline engine regardless of where the equipment is used.

Q5: Is installation straightforward?

Very — simply add the correct amount to your fuel tank before storage and run the engine briefly to circulate it.