Does your fifth wheel trailer sometimes feel like it’s fighting you every time you try to hitch up or turn? That grinding noise and stiff movement are clear signs that your kingpin needs some serious attention. Choosing the right lubricant for your fifth wheel hitch isn’t just about making things smoother; it’s a crucial part of keeping your setup safe and extending the life of your expensive equipment.
The market is flooded with greases promising the moon, leaving many RVers confused about what actually works best under heavy loads and changing weather conditions. Using the wrong product can lead to premature wear, frustrating squeaks, and even dangerous sticking points when you need reliable performance most. You need a grease that sticks, protects against rust, and handles the intense pressure of towing a heavy load.
This guide cuts through the confusion. We will break down exactly what makes a great fifth wheel grease and show you the top five options that RV veterans trust. By the end of this post, you will know precisely which tube of grease to buy for your next adventure, ensuring every hookup is silent and secure.
Top 5Th Wheel Grease Recommendations
- Lasts twice as long as grease
- Virtually waterproof
- Eliminate greasy mess on chassis and air hoses
- Dynatex Part Numbers: 56400 / 143566
- True affinity for metal surfaces thanks to its graphite/moly formulation and high percent of testifiers
- Tacky tenacious properties coupled with 10 percent lubricating solids further enables this grease to provide outstanding adhesion to fifth wheels
- NLGI grade 2
- Package Weight : 6.486 kilograms
- Water resistant
- Package Dimensions: 36.576 H x 23.876 L x 26.924 W (centimetres)
- Package Weight: 38.8 pounds
- Country of Origin : United States
- Quick and easy application: Sprays on easily and evenly. Like having grease in an aerosol can. It’s easier to apply than using a grease tube or pail of grease. Shake can, point and spray for quick lubrication of your fifth wheel.
- Reduces clumpy buildup on fifth wheel: Sprays on as a thin but highly durable lubricant that doesn’t build up on the fifth wheel, so the lubricant is able to properly grease metal surfaces. This helps reduce overgreasing.
- Long-lasting performance: Where you spray it is where it stays. Its highly adhesive performance qualities make it resistant to rain, snow and water washout. This reduces the need for frequent reapplication or overgreasing.
- Maintains its grease consistency: Resists adhering to dirt and debris, which can cause grease buildups, and resists flaking off, chipping off or forming a harden pack on fifth wheels. Doesn’t lose its slickness once it’s been in use.
- Strong protection against friction and wear: Heavy-duty, extreme pressure lubricant that allows moving parts on the fifth wheel and trailer to move smoothly without causing damaging wear and tear.
- HEAVY DUTY RED GREASE: AtomLube Ultra Heavy Duty Red Grease (NLGI #2) is a multi-purpose high-performance lubricant designed for extended chemomechanical durability. This essential chassis bearing grease has outstanding extreme-pressure lubrication and wear protection. Includes a 2-pack of 14 oz. tubes.
- HIGH-PERFORMANCE LUBRICANT: This powerful, waterproof grease eliminates friction and corrosion. AtomLube Heavy Duty Red Grease develops strong adhesion to metal surfaces for strong stay-in-place power even in severe operating conditions.
- LONGER LUBRICATION INTERVALS: This heavy duty red grease has a high resistance to oxidation and washout to guarantee extended service life and longer lubrication intervals. It provides lasting protection during periods of extreme pressures and high temperatures.
- PROLONGS EQUIPMENT LIFE: Our nano-engineered red grease penetrates complex machine surfaces to protect equipment mechanisms, extend service intervals, and prolong useful life of equipment.
- NLGI CERTIFIED: Ultra Heavy Duty Red Grease meets the National Lubricating Grease Institute (NLGI) performance classification GC-LB for automotive applications in wheel bearing and chassis grease.
The Ultimate Buying Guide for Fifth Wheel Grease
Towing a fifth wheel camper can be a fantastic adventure. To keep your journey smooth and safe, you need the right grease for your fifth wheel hitch. This guide helps you pick the best fifth wheel grease.
Key Features to Look For
Good fifth wheel grease does more than just make things slippery. Look for these features when shopping.
- **High Temperature Stability:** Your hitch gets hot when you drive long distances or climb hills. The grease must not melt or break down under high heat. Look for grease rated for extreme temperatures.
- **Water Resistance:** Rain and washing your RV can wash away weak grease. The best grease resists water washout. This keeps the metal parts protected even when wet.
- **Corrosion Protection:** Metal parts rust easily. Quality grease forms a protective barrier against moisture and air, stopping rust before it starts.
- **Load Bearing Capacity:** Fifth wheel hitches handle thousands of pounds. The grease must be thick enough to handle this heavy pressure without squeezing out.
Important Materials in Fifth Wheel Grease
The ingredients matter a lot. Different materials offer different levels of protection.
Most high-quality fifth wheel greases use a **Lithium Complex** base. Lithium complex greases offer excellent stability and stick well to the metal surfaces. Some specialized greases might use **Molybdenum Disulfide (Moly)**. Moly adds extra protection under very heavy loads, acting like tiny ball bearings within the grease.
Avoid very thin, general-purpose oils. These materials break down too fast under the pressure of a fifth wheel hitch. Always check the label for the base material.
Factors That Improve or Reduce Quality
What makes one grease better than another? It often comes down to formulation and application.
Factors That Improve Quality
- **Adhesion:** Great grease sticks firmly to the metal. It stays put, meaning you do not need to reapply it constantly.
- **EP (Extreme Pressure) Additives:** These special additives kick in when the pressure is too high for the base grease alone. They prevent metal-on-metal contact, which reduces wear significantly.
- **UV Stability:** While your hitch is mostly covered, long-term exposure to sunlight can degrade some greases. Good UV stability helps the grease last longer between maintenance sessions.
Factors That Reduce Quality
- **Incompatibility:** Mixing different types of grease can cause chemical reactions. This ruins the protective qualities of both greases. Always clean the old grease off before applying a new type, or stick to one brand/type.
- **Too Soft Consistency:** If the grease is too soft (low NLGI grade, usually Grade 0 or 1), it flows away too easily under the weight of the trailer. You need a stiffer grease, usually NLGI Grade 2.
User Experience and Use Cases
How does this affect your actual towing experience?
When you use the right grease, your towing experience improves dramatically. You will hear **less noise**—fewer squeaks and pops when turning corners or backing up. The hitch will feel **smoother** when you connect and disconnect the trailer. This smooth action reduces stress on the hitch components.
**Use Cases:**
- **Routine Maintenance:** Apply a thin, even layer to the kingpin and the jaws of the hitch before every trip or every few trips, depending on travel distance.
- **Winter Towing:** If you tow in the cold, ensure your grease stays pliable. Some heavy greases stiffen up, making turning difficult. Check the manufacturer’s temperature range.
- **Heavy Haulers:** If you pull a very heavy fifth wheel, prioritize greases labeled for “heavy-duty” or those containing Moly for extra protection.
Frequently Asked Questions (FAQ) About Fifth Wheel Grease
Q: How often should I grease my fifth wheel hitch?
A: Most manufacturers recommend greasing before every trip or every 3,000 miles, whichever comes first. Always check your specific hitch manual for exact guidance.
Q: Can I use standard wheel bearing grease on my fifth wheel hitch?
A: You can use it in a pinch, but it is not ideal. Fifth wheel hitches require grease built for sliding friction and extreme pressure. Dedicated fifth wheel grease offers better protection against washout and high loads.
Q: What is the best way to clean the old grease off?
A: First, wipe off the excess with a shop rag. Then, use a strong degreaser or mineral spirits to clean the metal surfaces thoroughly. The metal must be clean and dry before applying new grease.
Q: Does the color of the grease matter?
A: Generally, no. Color usually indicates the type of thickener or dye used, not the quality of the lubrication. Focus on the material (like Lithium Complex) and the NLGI grade.
Q: What is NLGI Grade 2? Why is it important?
A: NLGI Grade refers to the grease’s consistency or stiffness. Grade 2 is the standard for most automotive and trailer applications. It is stiff enough to stay in place but soft enough to spread under pressure.
Q: Will too much grease hurt my hitch?
A: Too much grease is messy, but it usually won’t hurt the mechanism. However, excessive grease can attract dirt and road grime, which acts like sandpaper. Apply a thin, uniform coat.
Q: What is the kingpin? Why does it need grease?
A: The kingpin is the vertical shaft on the front of your fifth wheel trailer that locks into the hitch in your truck bed. It needs grease so it can pivot and turn smoothly when you steer the truck.
Q: Is synthetic fifth wheel grease better than petroleum-based grease?
A: Synthetic greases often perform better in extreme temperatures (both hot and cold). They generally last longer and resist breakdown better than traditional petroleum greases.
Q: Should I grease the locking jaws of the hitch?
A: Yes. The jaws that clamp around the kingpin need a light coat of grease. This ensures they engage and disengage smoothly when connecting and disconnecting the trailer.
Q: I hear squeaking after greasing. What went wrong?
A: Squeaking usually means you did not clean the old grease thoroughly, or you missed a friction point. Re-clean the area and ensure you apply grease directly to the surfaces that rub against each other during turns.