Mercury – Antifreeze, -100°F, 1 Gallon | Winterization | 92-884038K01

Overview

When the boat’s getting hauled and the air starts biting, this is the jug you want sitting on the dock. This antifreeze is made for winter layup on boats, RVs, and house systems that see real cold, not just a light frost. It runs through the lines clean, protects the metal inside, and does it without beating up seals or hose material. Use it once and you stop worrying about a surprise split fitting when spring finally shows up.

Key Features

 • Non-Toxic Propylene Glycol Blend – Uses virgin propylene glycol for safer use in fresh-water plumbing systems.
 • -100°F Burst Protection – Helps protect lines and fittings when the temperature really dives.
 • -58°F to -63°F Freeze Protection – Keeps fluid from turning solid in typical deep-freeze storage conditions.
 • Corrosion Guard – Helps protect aluminum, copper, brass, and soldered joints during long layups.
 • Seal and Hose Friendly – Designed not to dry out, swell, or chew up rubber parts.
 • Ready-to-Use Formula – Can be poured straight in or mixed down following the label directions.

Engine & Boat Compatibility

 • Marine water systems
 • RV water systems
 • Cabin and galley plumbing
 • Seasonal storage water lines

Performance & Practical Benefits

This blend stays workable in the cold, so you can pull it through pumps and lines without fighting a thick sludge. Once it’s in the system, it sits there quietly doing its job, keeping metal from corroding and lines from freezing solid. Come spring startup, you’re not chasing mystery leaks or crusty fittings—everything usually pressurizes and runs like it did before haul-out. It’s simple peace of mind for rigs that sit through real winter.

Why Buy OEM

With OEM antifreeze, you know it was built around the same metals, seals, and hose materials Mercury sees every day. The freeze numbers on the label are the ones you actually get, and it does its work without strange reactions inside the system. It’s a straightforward way to protect gear that costs a lot more than a jug of antifreeze.

FAQ

Q1: How do I know it is time to run this through my system?
A: Once you have drained the water lines for fall and the real cold is on the way, it is time to pump this in.

Q2: Do I need to mix it before I use it?
A: No mixing is required; you can pour it in as it comes, or follow the label if you decide to dilute it.

Q3: Can I use it in drinking-water plumbing on the boat or RV?
A: Yes, the non-toxic propylene glycol blend is made for fresh-water systems that are flushed out in the spring.

Q4: Any practical tips when filling the lines?
A: Take your time and make sure every faucet and outlet runs pink before you shut things down for the season.

Q5: What kinds of problems show up if I skip proper winterization?
A: You can end up with split hoses, cracked fittings, and leaks that only show up once you pressurize the system in spring.

• Supersessions
  92-884038, 92-8M0050290, 92-8M0073203, 92-8M0073203