Best Automotive Electrical Lubricants of 2025

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Automotive electrical lubricants are specially formulated products designed to protect and enhance the performance of electrical connections in vehicles. These lubricants help to prevent corrosion and oxidation, which can cause electrical components to fail. They are typically applied to battery terminals, spark plug wires, and other electrical connections to ensure smooth and reliable operation. Automotive electrical lubricants come in a variety of forms, including sprays, greases, and pastes, and are designed to withstand high temperatures and harsh environments. By using these products, drivers can ensure that their vehicles are running at peak performance and avoid costly repairs caused by electrical failures.
At a Glance: Our Top Picks
Top 10 Automotive Electrical Lubricants
CRC Industries Marine Lubricant - 11oz.
The CRC Industries Marine Lubricant is a long-lasting, multi-purpose lubricant that resists water and salt spray. It drives out moisture that could lead to electrical failures and hard starting, and it can penetrate deep through rust and corrosion to loosen frozen parts and start wet engines. This lubricant is perfect for marine applications, and it is made in China.
Permatex 80070 Silicone Spray Lubricant
The Permatex Silicone Spray Lubricant is a versatile solution for all your lubricating needs. This high silicone formula not only lubricates but also electrically insulates and waterproofs all types of mechanical equipment. It is perfect for coating hinges and channels, preventing locks, doors, and windows from binding and squeaking. The non-marring formula ensures that it will not damage paint, rubber, or plastic surfaces. Additionally, the high silicone formula does not attract dust or dirt, keeping your equipment clean and running smoothly. It also protects and renews rubber mountings, bushings, and weather stripping, prolonging their lifespan. With the Permatex Silicone Spray Lubricant, you can enjoy the convenience of a single product that provides multiple benefits for your mechanical equipment.
Max Professional Electronics Lubricant, 11 oz.
This electronics lubricant is designed to lubricate and protect various electronic devices, including power tools, circuit board slots, cell phones, batteries, and flashlights. It is safe to use on plastics and helps to prevent damage caused by friction. Please note that this item is not available for sale in Catalina Island.
CRC Aerosol Lubricant
CRC Lubricant is a fast-acting multi-purpose aerosol lubricant designed to provide a range of benefits for automotive electrical applications. With its fast-acting formula, this all-in-one product quickly penetrates and lubricates, ensuring smooth operation of various components. It also stops squeaks, preventing annoying noises that can distract you while driving. Additionally, CRC Lubricant fights corrosion, protecting your electrical connections from rust and other forms of damage. Moreover, it has the ability to loosen rusted parts, making maintenance tasks much easier. With its moisture-displacing properties, this lubricant helps to keep your electrical components dry and functioning optimally. Lastly, its pleasant scent adds a touch of freshness to your automotive environment. CRC Lubricant is a reliable choice for anyone looking to maintain their automotive electrical systems effectively.
Super Lube 91003 Silicone Grease
The Super Lube Silicone Grease is an essential product for automotive and truck maintenance. This high-dielectric grease is designed to protect electrical connections, ensuring they remain functional and free from moisture and corrosion. The convenient 3 oz. package is lightweight and easy to handle, making it perfect for on-the-go repairs. With its vacuum grease properties, it also excels in providing a reliable seal in various applications. Whether you are a DIY enthusiast or a professional mechanic, this grease offers the reliability and performance needed for effective maintenance.
Camco 55013 PowerGrip Electrical Protectant and Lube
The Camco 55013 PowerGrip Electrical Protectant and Lube is an electrical adapter that improves conductivity, helps make connectors easier to insert and remove, and protects from oxidation. It's easy to use and store, and suitable for all Power Grip electrical adapters. Perfect for boat shore power cords.
Genuine GM Dielectric Lubricant - 2 oz.
Protect your electrical terminals from moisture, oxidation, and corrosion with Genuine GM Dielectric Lubricant. This lubricant eases the assembly of electrical connectors and is compatible with all GM vehicles for easy application.
Protect All Cable Lubricator 25006
The Protect All Cable Lubricator 25006 is a versatile cable care kit that is perfect for motorcycles, boats, jet skis, ATVs, snowmobiles, bicycles, and more. It coats the cables with an ultra-thin film that displaces moisture, preventing rust and corrosion. The best part is that you don't need to remove the cables from the housing, thanks to the convenient Protect All Cable Luber. This kit is also designed to work in high humidity and freezing temperatures, preventing cables from freezing and snow and ice buildup. With the Protect All Cable Lubricator, you can keep your cables in top condition, ensuring smooth operation and extending their lifespan.
Tectran Dielectric Grease
Tectran Dielectric Grease is designed to keep your electrical connections safe and secure. This lubricant effectively prevents moisture from getting in, which means you can trust it to protect your metal surfaces even in tough environments. It also helps shield against oxidation, rust, and corrosion, ensuring that your components last longer and perform better. By using this grease, you can enjoy peace of mind knowing that your automotive electrical systems are well-protected. It's a simple yet powerful solution for maintaining the integrity of your equipment.
CKAuto Petrolatum Automotive Grease
CKAuto Automotive Lubricant is designed to enhance your vehicle's performance with its excellent lubrication and corrosion protection. By creating a barrier against rust, it ensures long-lasting durability for your automotive parts. This product is also perfect for sealing and insulating electrical connections, shielding them from moisture and oxidation to prevent malfunctions. Its versatility makes it useful for lubricating rubber seals and protecting battery terminals, making various maintenance tasks easier for you. Plus, it performs well in extreme temperatures, ensuring reliability in any environment.
Frequently Asked Questions (FAQs)
1. What grease to use on automotive electrical connectors?
For automotive electrical connectors, it is best to use dielectric grease. This type of grease is specifically formulated to protect and insulate electric systems. It is commonly used for automotive tune-ups, home electrical work, and recreational vehicle wiring.
2. When should you not use dielectric grease?
Dielectric grease should not be used as a conductor as it is an insulator and can impede the flow of electrical current. It is important to use dielectric grease only for its intended purpose of protecting and insulating electrical connections.
3. Can WD-40 be used as dielectric grease?
WD-40, with its dielectric strength of 35KV, can be used to restore electrical connections, protect components from moisture, and even rescue flooded equipment. However, it is important to note that WD-40 is not specifically formulated as dielectric grease, so it may not provide the same level of protection and insulation as a dedicated dielectric grease.
4. What kind of lubricant is used for electric motors?
The most commonly used lubricant for electric motors is a NLGI 2 grade grease. It is important to use a grease with an EP (extreme pressure) additive for applications that require it. The dropping point of the grease indicates the temperature at which it will melt or the oil will separate from the thickener.
5. Is lithium grease good for electrical connections?
Lithium grease is an electrical insulator, which means it does not carry an electrical charge. It should not be applied along any electrical path as it will halt the current flow and render the device inoperable. Therefore, it is not suitable for use on electrical connections.
During our automotive electrical lubricant research, we found 24 automotive electrical lubricant products and shortlisted 10 quality products. We collected and analyzed 23,929 customer reviews through our big data system to write the automotive electrical lubricants list. We found that most customers choose automotive electrical lubricants with an average price of $18.66.
The automotive electrical lubricants are available for purchase. We have researched hundreds of brands and picked the top brands of automotive electrical lubricants, including CRC, Permatex, Max Pro, Super Lube, Camco. The seller of top 1 product has received honest feedback from 134 consumers with an average rating of 3.9.

David Davis has rich experience as a mechanic and a general repairman in the automotive industry. It has given him plenty of knowledge in automobile repair, auto parts, and all kinds of tools. In his spare time, he enjoys assembling and disassembling parts for cars.
Automotive Electrical Lubricants Comparison Table
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Brand | CRC | Permatex | Max Pro | CRC | Super Lube | Camco | General Motors | Protect All | Tectran | CKAuto |
Package Information | Can, Bottle | Can | - | Can | Tube | - | Bottle | Bottle | Tube | - |
Liquid Volume | 16 Fluid Ounces | 10.25 Fluid Ounces | - | 9 Fluid Ounces | 3 Fluid Ounces | - | 2 Fluid Ounces | 6.25 Fluid Ounces | 0.12 Liters | - |
Item Weight | 14.4 ounces | 10.2 Ounces | - | 9 Ounces | 0.22 Pounds | - | 2 Ounces | 6.25 Ounces | 8 Grams | - |
Material | - | Silicone,Plastic,Rubber | - | Plastic | Silicone | - | - | Lanolin or Polytetrafluoroethylene | Silicone | - |
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