Boat owners know that a little upkeep goes a long way—but if you don’t have the right tools on hand, simple issues can quickly balloon into big problems. This includes cleaning and maintenance, where it’s all too easy to grab whatever product is in the garage rather than seek out a condition-specific solution.
While it might seem like an economical and logical choice, marine environments play by their own rules with salt water, humidity, and UV exposure taking a vicious toll on your vessel. To combat this corrosion, you’ll need a selection of marine-specific formulas built tough for survival on the water. Keep reading to discover the must-have lubricants and cleaners every boater should carry, and how to get fast, FREE shipping on all your marine supplies with Parts Via.
Essential Lubricants to Keep Onboard
The right lubricants can extend the life of your equipment, prevent costly repairs, and keep everything operating quietly and efficiently. Here’s a look at the must-have options every boater should have on hand.
- Marine Grease: Built to stay put where standard greases would wash away, marine grease is ideal for lubricating trailer wheel bearings, prop shafts, and steering systems. Look for waterproof, corrosion-resistant formulas rated for marine use, like Liqui Moly Marine Grease, which resists washout even in saltwater.
- Gear Oil: Outboard and lower-unit gears face extreme pressure, which can cause metal surfaces to deform, pit, or even weld together. To protect these critical components, marine gear oils, such as Sierra Marine Gear Oils, contain special anti-foaming additives that reduce operating friction and encourage proper heat transfer for better performance. Always check manufacturer specs (like API GL-5) and avoid standard automotive oils, as they lack the water separation marine engines need.
- Corrosion Inhibitors: Salt, spray, and humidity are relentless on metal and wiring. A quality corrosion inhibitor, like CRC Heavy Duty Corrosion Inhibitor, leaves a thin, waxy film that sticks through heat and moisture, keeping terminals, connectors, and exposed metal protected from rust and corrosion.
- Multi-Purpose Lubricant Sprays: A marine-grade spray is your all-in-one tool for loosening, protecting, and moisture-proofing moving parts. Unlike household sprays, products like CRC 6-56 Marine Multi-Purpose Lubricant are formulated to resist salt, sun, and the harsh marine environment.
When stocking your boat, look for marine-grade, waterproof products—they last longer and are more adept at resisting corrosion. Multi-purpose formulas can be particularly handy for tackling a variety of tasks, helping reduce the number of cans and tubes in your storage locker. Whenever possible, stick with trusted marine brands like Star Brite, Sierra Marine, and CRC at Parts Via, all built to withstand the harsh marine environment.
Must-Have Marine Cleaners
Keeping your boat looking and performing its best isn’t just about engines and gears—regular cleaning protects your investment from the harsh marine environment. Here are the must-have marine cleaners every boater should carry.
- Bilge Cleaner: The bilge is your boat’s dirt magnet, collecting oil, fuel, and sludge that can create odors and corrosion. A quality bilge cleaner like Star Brite Bilge Cleaner or Life Industries’ Boat Life Bilge Cleaner breaks down grease and grime safely while leaving behind a fresh scent. Look for biodegradable and non-toxic options that won’t pollute the water when pumped out.
- Hull and Deck Cleaner: Your hull and deck take the brunt of sun, salt, sand, and seagull assaults. A marine-grade cleaner such as Lippert Hull Cleaner or Star Brite EZ-ON EZ-OFF removes stains and oxidation without stripping wax or damaging non-skid surfaces. Avoid harsh abrasives or household soaps, as they can dull gelcoat and harm marine coatings. For natural teak decks, which require their own specially-formulated cleaners and protectors, check out Boat LIFE Teak Brite Brightener. It’s a one-step liquid cleaner and brightener that’s great for safely removing dirt, grease, food stains, and oil without damaging the wood, as well as a good spot cleaner that will leave your bronze and brass deck plates gleaming.
- Vinyl and Upholstery Cleaner: Marine environments can be especially abusive to your seats and cushions, so consider keeping a dedicated vinyl and upholstery cleaner on hand, like BioKleen Amazing Vinyl Cleaner or StarBrite Ultimate Vinyl Guard. Both clean deeply while adding UV protection to prevent cracking and fading. Pro Tip: Choose non-silicone and non-greasy formulas for safer traction on seating and decks.
- Glass and Electronics Cleaner: Marine electronics and clear surfaces need something that can remove stubborn, caked-on salt and water spots in addition to dust and smudges. Products like Invisible Glass Clean and Repel remove salt residue and fingerprints without leaving streaks or damaging anti-glare coatings. Always use ammonia-free, anti-static formulas safe for plexiglass, acrylic, and LCD screens.
- Multi-Purpose Cleaner: Every boater should have at least one do-it-all cleaner for quick wipe-downs and general maintenance. Meguiars Extreme Marine Multi-Purpose Cleaner is a prime example. It’s biodegradable, non-toxic, and tough on grease, mildew, and dirt while remaining safe for metal, fiberglass, and fabric.
Remember that, whenever possible, it’s best to choose biodegradable and phosphate-free products. They’re safer for your crew, your boat’s finishes, and the waterways you’re out to enjoy. Additionally, always rinse surfaces thoroughly and follow disposal guidelines to minimize environmental impact.
Stock Smart to Protect Your Boat and Your Gear
Having the right maintenance supplies onboard is important, but so is knowing where to keep them. Space is limited, and certain products don’t play well with heat, humidity, or confined storage. Organizing your lubricants and cleaners wisely keeps your boat safer, cleaner, and more efficient.
When packing your onboard kit, stick to the essentials you’ll actually need while underway or docked, such as a small tube of marine grease, a multi-purpose lubricant spray, a corrosion inhibitor, and a few compact cleaners for quick touch-ups. Store these in a ventilated locker away from direct sunlight and any ignition sources. A small, sealed bin or caddy helps prevent leaks and keeps everything organized.
Bulk items like extra gear oil, large jugs of bilge or hull cleaner, and backup lubricant cans are better left in your garage, dock box, or maintenance shed. These can be sensitive to temperature changes and add unnecessary weight or clutter onboard. Keeping them on land also makes it easier to restock or properly dispose of empty containers.
In addition to curating a practical onboard selection, keep these safety, storage, and environmental tips in mind:
- Always secure lids tightly to prevent spills or fumes.
- Label everything clearly, especially look-alike sprays and oils.
- Keep products in their original containers to retain safety data and instructions.
- Never store flammable materials near batteries, engines, or electrical panels.
- Don’t rinse cleaners where runoff will flow directly into the water, and never dump oily rags or containers overboard.
- Dispose of used oils, lubricants, and empty cans at approved recycling or hazardous waste facilities. Many marinas offer drop-off sites for just this purpose.
Stock Up With Parts Via
A well-stocked boat is equipped with exactly what you need, when you need it. Take a few minutes to build your own compact maintenance kit with marine-grade lubricants and cleaners tailored to your vessel’s size and how you boat. A small stash of quality products can save a weekend on the water from turning into a tow back to shore.
Shop trusted brands right here through Parts Via’s network of suppliers to find marine-specific lubricants, protectants, and cleaners that go the distance. And don’t forget to use Parts Via’s fast, FREE ship-to-store option at checkout for convenient pickup, extra savings, and the chance to get pro advice before you hit the water.