Best Red Devil Oil Stop Leak in 2025
Updated on August 2025
#1
Recommended
Free Shipping
- Remarkable ability to repair and seal leaks in air conditioning systems including condensers and evaporators
- Contains no solid matter to prevent clogs in the A/C system
- Forms a chemical bond that seals leaks in R-12 and R-134a systems
- Provides a permanent seal for enhanced reliability
- Safety tested and guaranteed for effectiveness
Read More
- Remarkable ability to repair and seal leaks in air conditioning systems including condensers and evaporators
- Contains no solid matter to prevent clogs in the A/C system
- Forms a chemical bond that seals leaks in R-12 and R-134a systems
- Provides a permanent seal for enhanced reliability
- Safety tested and guaranteed for effectiveness
#2
Value for Money
21% Off
Free Shipping
- User-friendly application: Simply pour the recommended amount into the leaking component's oil sump or crankcase.
- Long-lasting seal: Provides a proactive and permanent solution to stop oil leaks, ensuring effective sealing even with continued driving.
- Broad compatibility: Suitable for both gasoline and diesel engines, making it adaptable for various vehicle types.
- Multi-purpose repair: Effectively reconditions rubber seals in various fluid oil systems, including pinion seals, gear cases, and axle seals.
- Engine-safe formulation: Features a non-clogging formula that doesn't cause seal swelling and is free from petroleum
Read More
- User-friendly application: Simply pour the recommended amount into the leaking component's oil sump or crankcase.
- Long-lasting seal: Provides a proactive and permanent solution to stop oil leaks, ensuring effective sealing even with continued driving.
- Broad compatibility: Suitable for both gasoline and diesel engines, making it adaptable for various vehicle types.
Read More
#3
35% Off
Free Shipping
- Formulated to seal damaged rear main seals, preventing oil leaks from the engine.
- User-friendly application: simply add to the engine oil for effective results.
- Restores rubber seals to optimal condition while the vehicle is in use.
- Free from petroleum distillates to ensure seal integrity.
- Compatible with both gasoline and diesel engines, functioning with all oil types.
Read More
- Formulated to seal damaged rear main seals, preventing oil leaks from the engine.
- User-friendly application: simply add to the engine oil for effective results.
- Restores rubber seals to optimal condition while the vehicle is in use.
- Free from petroleum distillates to ensure seal integrity.
- Compatible with both gasoline and diesel engines, functioning with all oil types.
#4
Free Shipping
- Provides a permanent seal
- Restores rubber seals that are dried, cracked, or shrunk
- Compatible with all hydraulic systems
- Ensures long-lasting sealing
Read More
- Provides a permanent seal
- Restores rubber seals that are dried, cracked, or shrunk
- Compatible with all hydraulic systems
- Ensures long-lasting sealing
#5
22% Off
Free Shipping
- User-friendly application by pouring into the oil sump or crankcase.
- Provides a permanent seal for oil leaks, ensuring continued performance after application.
- Works with both gasoline and diesel engines for broad compatibility.
- Repairs rubber seals in various fluid oil systems including gear boxes, axles, and shock absorbers.
Read More
- User-friendly application by pouring into the oil sump or crankcase.
- Provides a permanent seal for oil leaks, ensuring continued performance after application.
- Works with both gasoline and diesel engines for broad compatibility.
- Repairs rubber seals in various fluid oil systems including gear boxes, axles, and shock absorbers.
#6
6% Off
Free Shipping
- 5 applications per cartridge
- Effectively repairs and seals AC leaks in condensers, evaporators, connection hoses, gaskets, and O-rings
- Free from solids or particulates that could clog the A/C system or damage recovery units
- Creates a chemical bond that seals leaks in R-12 and R-134a systems
- Permanent seal that is safe for use
Read More
- 5 applications per cartridge
- Effectively repairs and seals AC leaks in condensers, evaporators, connection hoses, gaskets, and O-rings
- Free from solids or particulates that could clog the A/C system or damage recovery units
- Creates a chemical bond that seals leaks in R-12 and R-134a systems
- Permanent seal that is safe for use
#7
Free Shipping
- Quickly resolves oil leaks, often within 30 miles of driving, with online support available for diagnosis.
- Effectively eliminates blue smoke issues almost instantly, addressing oil loss problems. A 100% refund is offered if problems continue.
- Reduces the need for frequent oil top-ups by minimizing leaks and burning oil, helping maintain smooth engine operation.
- Compatible with a wide range of engines (3 to 10 cylinders) in cars, trucks, vans, and SUVs, effectively improving both black smoke and oil consumption issues.
- Easy to use—just add Engine Wizard to your engine oil to help maintain and prolong engine life.
Read More
- Quickly resolves oil leaks, often within 30 miles of driving, with online support available for diagnosis.
- Effectively eliminates blue smoke issues almost instantly, addressing oil loss problems. A 100% refund is offered if problems continue.
- Reduces the need for frequent oil top-ups by minimizing leaks and burning oil, helping maintain smooth engine operation.
Read More
#8
Free Shipping
- Auto accessory designed for automotive use
- Dimensions: 7.25" L x 6.25" W x 9.25" H
- Manufactured in the United States
- Total package weight of 7.0 lbs
Read More
- Auto accessory designed for automotive use
- Dimensions: 7.25" L x 6.25" W x 9.25" H
- Manufactured in the United States
- Total package weight of 7.0 lbs
#9
8% Off
Free Shipping
- Permanent seal for reliable performance
- Safe for A/C systems and recovery units
- Includes UV dye for easy leak detection
Read More
- Permanent seal for reliable performance
- Safe for A/C systems and recovery units
- Includes UV dye for easy leak detection
#10
Free Shipping
- Red Angel A/C Stop Leak & Conditioner is a product by BlueDevil.
- It is designed to stop leaks in air conditioning systems.
- The product also acts as a conditioner for the A/C system.
- BlueDevil Products focuses on solutions for automotive maintenance.
- The A/C Stop Leak & Conditioner is formulated for easy application.
Read More
- Red Angel A/C Stop Leak & Conditioner is a product by BlueDevil.
- It is designed to stop leaks in air conditioning systems.
- The product also acts as a conditioner for the A/C system.
- BlueDevil Products focuses on solutions for automotive maintenance.
- The A/C Stop Leak & Conditioner is formulated for easy application.
Refrigerant Leak Detector Liquid
See All
Central Air Conditioner Leak Sealer
See All
410a Refrigerant Stop Leak
See All
