We researched, compared, and evaluated the top lubricants for rubber bushings based on manufacturer specifications, published industry standards, and aggregated owner feedback. The wrong lubricant can cause swelling, cracking, or premature wear, so choosing a product specifically designed for rubber is critical. Our guide covers silicone-based, Teflon-infused, and polyurethane-compatible options to help you eliminate squeaks and protect your suspension components.
| Photo | Product | Score | Buy |
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Super Lube 21110 Silicone Lubricating Grease Best Overall Silicone-based, NLGI Grade 2, temperature range -40°F to 400°F |
9.0 | 🛒 Check Price |
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Permatex 22058 Dielectric Tune-Up Grease Best Value Silicone-based dielectric grease, temperature range -40°F to 500°F |
8.5 | 🛒 Check Price |
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CRC 5037 Silicone Spray Best Spray Silicone spray, temperature range -20°F to 400°F, 11 oz aerosol |
8.2 | 🛒 Check Price |
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Lucas Oil 10333 Silicone Grease Premium Pick Silicone-based, NLGI Grade 2, temperature range -40°F to 450°F |
8.8 | 🛒 Check Price |
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WD-40 Specialist Silicone Lubricant Most Accessible Silicone spray, temperature range -100°F to 500°F, 11 oz aerosol |
8.0 | 🛒 Check Price |
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Energy Suspension 9.11103G Hyper Lube For Polyurethane Bushings Silicone and PTFE blend, designed for polyurethane and rubber |
8.4 | 🛒 Check Price |
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Blaster 16-SL Silicone Lubricant Budget Pick Silicone spray, temperature range -20°F to 400°F, 11 oz aerosol |
7.8 | 🛒 Check Price |
1. Super Lube 21110 Silicone Lubricating Grease: Best Overall
Super Lube 21110 is a synthetic silicone grease that we found consistently recommended by mechanics and off-road forums for rubber bushing maintenance. Its wide temperature range and water resistance make it ideal for both daily drivers and vehicles exposed to the elements. The grease stays put and does not degrade rubber over time, addressing the most common issue with petroleum-based lubricants.
However, it is not suitable for polyurethane bushings, which require a different lubricant. If your vehicle has aftermarket polyurethane components, skip this pick. For OEM rubber bushings, it is an excellent choice that balances performance and value.
- Safe on all rubber and plastic; will not swell or dry out.
- Excellent water resistance and long-lasting lubrication.
- Food grade and odorless, suitable for interior and exterior use.
Pros: Non-staining and chemically inert; Works well in extreme temperatures
Cons: Not recommended for polyurethane bushings
2. Permatex 22058 Dielectric Tune-Up Grease: Best Value
Permatex 22058 is a silicone dielectric grease that we evaluated as a budget-friendly option for rubber bushings. While it is primarily designed for electrical connectors, its silicone base makes it safe for rubber. Owner feedback indicates it effectively stops squeaks on sway bar and control arm bushings when applied sparingly.
Its main limitation is that it is not as durable as dedicated bushing greases; reapplication may be needed sooner in harsh conditions. If you need a grease that also works on battery terminals and spark plugs, this is a versatile pick. But for heavy-duty off-road or high-mileage use, a more robust product might be better.
- Prevents rubber from drying and cracking.
- Non-conductive, safe for electrical connections nearby.
- Thick consistency stays on bushings during installation.
Pros: Very affordable for the quantity; Multi-purpose use beyond bushings
Cons: Can attract dust if applied too liberally
3. CRC 5037 Silicone Spray: Best Spray
CRC 5037 Silicone Spray is a convenient option we compared for owners who need a quick solution for squeaky bushings without removing components. Its spray format allows it to penetrate tight spaces like control arm bushings and stabilizer bar links. Owner reviews on forums like Bob Is The Oil Guy note it works well for temporary relief.
However, because it is a spray, it does not provide the same longevity as grease. It can also run off and not stay on vertical surfaces. We recommend it for maintenance between grease applications or for vehicles that see light use. For severe conditions, a grease is superior.
- Easy to apply in tight spaces without disassembly.
- Dries quickly and leaves a non-staining film.
- Safe on rubber, plastic, and painted surfaces.
Pros: Convenient aerosol application; Good for quick fixes and hard-to-reach areas
Cons: Less long-lasting than grease; may require frequent reapplication
4. Lucas Oil 10333 Silicone Grease: Premium Pick
Lucas Oil 10333 is a premium silicone grease that we evaluated for its exceptional durability. It includes PTFE (Teflon) particles that reduce friction and extend the life of rubber bushings. Based on spec sheets, it has a higher viscosity than many competitors, which helps it stay in place under load. Off-road enthusiasts report it lasts several months on trailered vehicles.
The main drawback is its cost; it is one of the pricier options. For budget-conscious buyers, the Super Lube or Permatex offers better value. However, if you want maximum protection and are willing to pay more, this is a top contender.
- High viscosity for heavy-duty applications.
- Resists washout from rain and pressure washers.
- Contains PTFE for added lubricity.
Pros: Long-lasting even in wet conditions; Excellent film strength
Cons: More expensive per ounce than alternatives
5. WD-40 Specialist Silicone Lubricant: Most Accessible
WD-40 Specialist Silicone Lubricant is a familiar brand that we researched for its accessibility and ease of use. It is a silicone spray that can be applied to rubber bushings to reduce squeaks. Many owners use it as a quick fix because it is readily available and inexpensive. The precision straw helps reach tight spots.
However, its durability is limited; it is best for light-duty applications or as a temporary solution. For long-term protection, a grease is recommended. If you need something that works now and you can buy at any store, this is fine. But serious off-roaders should look elsewhere.
- Widely available at auto parts stores and online.
- Safe on all rubber and plastic surfaces.
- Precision straw allows targeted application.
Pros: Easy to find and use; Works as a general-purpose lubricant
Cons: Not as durable as dedicated greases; Can evaporate over time
6. Energy Suspension 9.11103G Hyper Lube: For Polyurethane Bushings
Energy Suspension 9.11103G Hyper Lube is a specialty lubricant we evaluated for vehicles with aftermarket polyurethane bushings. Unlike standard silicone greases, it is designed to bond with polyurethane and prevent the notorious squeaks that plague these components. It also works on rubber, so it can be used across the entire suspension.
Its cost is higher, and it is not as widely available as other options. If you have a mix of rubber and polyurethane bushings, this is the best single solution. But if your vehicle has only rubber bushings, a cheaper silicone grease will suffice.
- Specifically formulated for polyurethane bushings to prevent squeaking.
- Also safe on rubber, making it versatile.
- High film strength resists squeeze-out.
Pros: Works on both rubber and polyurethane; Long-lasting performance
Cons: More expensive than general silicone greases
7. Blaster 16-SL Silicone Lubricant: Budget Pick
Blaster 16-SL Silicone Lubricant is the most budget-friendly option we compared. It is a basic silicone spray that can temporarily quiet squeaky rubber bushings. For occasional maintenance on older vehicles, it may be sufficient. Owner feedback on Amazon indicates it works fine for door seals and minor suspension noise.
However, its durability is poor; it can wash off easily and may need reapplication after every few drives. For serious suspension work or vehicles exposed to rain and mud, this is not adequate. We recommend it only for those on a tight budget or for non-critical applications.
- Very low cost per can.
- Safe on rubber and plastic.
- Non-staining and odorless.
Pros: Extremely affordable; Good for light use
Cons: Short-lived lubrication; Not recommended for heavy-duty or wet conditions
Frequently Asked Questions
Can I use WD-40 on rubber bushings?
Standard WD-40 is not recommended because it is a solvent that can dry out and swell rubber. However, WD-40 Specialist Silicone Lubricant is safe for rubber. Always check the label for silicone content.
How often should I lubricate rubber bushings?
It depends on driving conditions. For daily drivers, reapply every 6-12 months or when squeaks return. Off-road or wet conditions may require more frequent application, every 3-6 months.
What type of lubricant is safe for rubber bushings?
Silicone-based lubricants are the safest for rubber. They do not swell or degrade rubber. Avoid petroleum-based greases, which can cause damage.
Can I use lithium grease on rubber bushings?
Lithium grease is not recommended for rubber bushings because it can cause swelling and deterioration. Stick to silicone or PTFE-based products.
Do I need to remove bushings to lubricate them?
Not necessarily. Spray lubricants can be applied without disassembly. For grease, you may need to access the bushing with a grease gun or by applying directly. Some bushings have zerk fittings for easy greasing.
Our Verdict
Our top pick is Super Lube 21110 for its balance of performance, durability, and value. For those with polyurethane bushings, the Energy Suspension Hyper Lube is the best runner up. All picks are safe for rubber, but choose based on your specific needs and budget.
Last reviewed and spec-checked: September 24, 2025. We re-check our picks and listings periodically.
