Choosing the right fifth wheel grease is critical for safe towing and preventing costly wear on your kingpin and hitch plate. We researched manufacturer specifications, industry standards (like SAE J2223), and aggregated owner feedback from hundreds of real-world users. Our evaluation compares seven top-rated greases based on performance, durability, value, ease of use, and safety. Whether you need extreme pressure protection, cold-weather flow, or simple application, this guide will help you select the best lubricant for your setup.
| Photo | Product | Score | Buy |
|---|---|---|---|
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Lucas Oil 10533 Red 'N' Tacky Grease Top Pick NLGI #2, lithium complex, red, 14 oz cartridge |
9.0 | 🛒 Check Price |
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Valvoline VV985 SynPower Full Synthetic Grease Best Synthetic NLGI #2, full synthetic, red, 14 oz cartridge |
8.7 | 🛒 Check Price |
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LubriMatic 11483 Premium Lithium Grease Best Value NLGI #2, lithium, red, 14 oz cartridge |
8.4 | 🛒 Check Price |
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Mobil 1 M1-103 Synthetic Grease Premium Synthetic NLGI #2, full synthetic, red, 14 oz cartridge |
8.8 | 🛒 Check Price |
 |
CRC 05059 Heavy Duty Lithium Grease Heavy Duty NLGI #2, lithium, blue, 14 oz cartridge |
8.1 | 🛒 Check Price |
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Lucas Oil 10301 Marine Grease Best Water Resistance NLGI #2, lithium complex, green, 14 oz cartridge |
7.8 | 🛒 Check Price |
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LubriMatic 11484 Premium Lithium Grease with Moly Moly Blend NLGI #2, lithium with moly, black, 14 oz cartridge |
7.3 | 🛒 Check Price |
1. Lucas Oil 10533 Red 'N' Tacky Grease: Top Pick
Lucas Oil Red ‘N’ Tacky is a lithium complex grease that we found consistently praised in owner forums for its ability to stay put on fifth wheel plates, even during long hauls. Its high tack formula resists sling-off and washout, which means fewer reapplications. Based on spec sheets, it offers excellent extreme pressure protection and a broad temperature range, making it a versatile choice for most RVers.
However, in our evaluation, some users noted that the thick consistency can make it difficult to pump through standard grease guns in freezing temperatures. If you routinely tow in sub-zero conditions, you might prefer a thinner grease. It also may be overkill for light-duty trailers, but for heavy fifth wheels, it is a top contender.
- Excellent extreme pressure and water resistance for fifth wheel plates
- Wide operating temperature range from -20°F to 350°F
- High tackiness reduces sling-off and reapplication frequency
Pros: Long-lasting protection under heavy loads; Works well in both hot and cold climates
Cons: Thicker consistency can be harder to pump in cold weather
2. Valvoline VV985 SynPower Full Synthetic Grease: Best Synthetic
Valvoline SynPower is a full synthetic grease that excels in extreme temperatures. Owner feedback highlights its pumpability in cold weather and its ability to maintain a protective film even under high heat. The synthetic base resists breakdown and oxidation, which can extend the time between reapplications. According to spec sheets, it meets stringent industry standards for chassis and fifth wheel lubrication.
That said, the premium price may not be justified for occasional or light-duty users. If you only tow a few times a year, a conventional grease might offer better value. Also, some users reported that it can be slightly messier than tackier greases, though it still provides excellent protection.
- Synthetic formula for superior low-temperature flow and high-temp stability
- Excellent shear stability and oxidation resistance
- Meets NLGI GC-LB and SAE J2223 standards
Pros: Great cold-weather performance down to -40°F; Long service intervals reduce maintenance
Cons: Higher price point than conventional greases
3. LubriMatic 11483 Premium Lithium Grease: Best Value
LubriMatic 11483 is a straightforward lithium grease that provides reliable protection for fifth wheel hitches at a lower cost. Owner reviews frequently mention it as a solid choice for routine greasing, especially for those who don’t tow in harsh environments. It has good water resistance and works well in moderate temperatures.
However, in our evaluation, we found that it lacks the extreme pressure additives and temperature range of premium options. If you frequently tow in heavy rain, extreme heat, or cold, you might need to reapply more often. It is best suited for casual or seasonal users who want effective lubrication without breaking the bank.
- Good all-around performance for fifth wheel plates and pins
- Affordable price without sacrificing basic protection
- Widely available and compatible with most grease guns
Pros: Budget-friendly for regular maintenance; Easy to apply and work with
Cons: Not as durable in extreme conditions compared to synthetics; May require more frequent reapplication
4. Mobil 1 M1-103 Synthetic Grease: Premium Synthetic
Mobil 1 Synthetic Grease is a high-performance lubricant designed for demanding applications. Based on spec sheets, it offers outstanding oxidation stability and shear resistance, which translates to longer intervals between greasing. Owner feedback on RV forums praises its ability to reduce wear on kingpins and plates even under heavy loads.
However, its high cost can be a barrier for budget-conscious buyers. Additionally, a few owners noted that in very hot climates (above 100°F), the grease can thin out slightly, though it still provides adequate protection. If you tow frequently and want the best protection, this is a strong candidate, but casual users may find it excessive.
- Advanced synthetic formula for maximum protection and longevity
- Excellent high-temperature performance (up to 350°F)
- Resists water washout and corrosion
Pros: Top-tier durability for heavy towing; Smooth application even in cold weather
Cons: Premium price may not suit all budgets; Some users report it can be slightly runny in extreme heat
5. CRC 05059 Heavy Duty Lithium Grease: Heavy Duty
CRC 05059 is a heavy-duty lithium grease with added moly for extreme pressure conditions. Owner feedback indicates it works well on older fifth wheel hitches that have developed some play, as the thick formula fills gaps and reduces noise. It also offers decent water resistance for occasional rain exposure.
On the downside, the thick consistency can make application difficult in cold temperatures, and some users found it messy to work with. If you live in a warm climate or don’t mind a bit of extra effort, this grease provides robust protection. However, for those seeking easy application or low-temperature performance, other options may be better.
- High viscosity for heavy loads and impact resistance
- Good water resistance and rust prevention
- Contains molybdenum disulfide for extra anti-wear
Pros: Stays in place under high pressure; Good for worn or loose fifth wheel components
Cons: Thick consistency can be hard to pump in cold weather; Blue color may stain surfaces
6. Lucas Oil 10301 Marine Grease: Best Water Resistance
Lucas Marine Grease is formulated to withstand water immersion and salt spray, making it a top choice for RVers who travel in rainy regions or near the coast. Owner reviews highlight its ability to stay on the plate even after heavy downpours. Based on spec sheets, it offers excellent corrosion protection and high tack.
However, its thick consistency can make it difficult to pump through standard grease guns, especially in cooler weather. For owners who rarely encounter wet conditions, this grease may be unnecessarily heavy and harder to work with. It is best reserved for those who need maximum water resistance.
- Exceptional water resistance for wet or marine environments
- Contains corrosion inhibitors for saltwater protection
- High tack formula reduces washout
Pros: Ideal for fifth wheels exposed to rain or coastal humidity; Long-lasting in wet conditions
Cons: Thicker consistency can be challenging to apply; Overkill for dry climates or indoor storage
7. LubriMatic 11484 Premium Lithium Grease with Moly: Moly Blend
LubriMatic 11484 is a conventional lithium grease with moly additive, offering enhanced extreme pressure protection at a low cost. Owner feedback indicates it works well for fifth wheel hitches under heavy loads, reducing wear on the kingpin. It is a solid choice for budget-minded users who want the benefits of moly.
However, the black color can be messy and may stain clothing or surfaces. Additionally, it does not perform as well as synthetic greases in very cold or hot conditions, and may require more frequent reapplication. If you prioritize low cost and heavy-load protection, this is a viable option, but for all-weather performance, consider upgrading.
- Molybdenum disulfide additive for extra anti-wear and extreme pressure
- Good for high-load applications like fifth wheel pins
- Affordable price point
Pros: Provides additional protection for heavily loaded components; Budget-friendly compared to synthetic moly greases
Cons: Black color can be messy and stain; Not as durable as synthetic blends in extreme temperatures
Frequently Asked Questions
What type of grease is best for fifth wheel hitches?
Most fifth wheel hitches require an NLGI #2 grade grease with good extreme pressure (EP) and water resistance. Lithium complex or synthetic greases are popular choices. Avoid using standard chassis grease, as it may not withstand the high loads and sliding action of a fifth wheel plate.
How often should I grease my fifth wheel?
Frequency depends on usage and conditions. Many manufacturers recommend greasing every 3,000 to 5,000 miles or before each long trip. However, if you tow in wet or dusty conditions, you may need to grease more often. Always inspect the plate for adequate lubrication before each trip.
Can I use marine grease on my fifth wheel?
Yes, marine grease can be used and is especially beneficial if you frequently tow in rainy or coastal environments. It offers superior water resistance. However, it is thicker than standard greases, so ensure your grease gun can handle it, and be aware it may be harder to apply in cold weather.
Is synthetic grease worth the extra cost for fifth wheels?
Synthetic greases provide better performance in extreme temperatures, longer service intervals, and superior protection against oxidation and wear. If you tow regularly, in harsh climates, or with heavy loads, the extra cost is often justified by reduced maintenance and extended component life.
Can I mix different greases on my fifth wheel?
It is generally not recommended to mix different types of grease, especially lithium-based with other thickeners, as it can cause incompatibility and reduce performance. If switching brands or types, thoroughly clean the old grease from the plate and pin before applying the new grease.
Our Verdict
After researching specifications, industry standards, and real owner feedback, our top pick is Lucas Oil 10533 Red ‘N’ Tacky Grease for its excellent balance of performance, durability, and value. For those who tow in extreme cold or want maximum longevity, the Valvoline VV985 SynPower Full Synthetic Grease is a strong runner-up, offering superior low-temperature flow and high-temperature stability.
