Phoenix Systems 8006-B Double-Ended Brake Fluid + Coolant Test Strips (15 Foil Wrapped Test Strips) Review: A Smart Preventive Maintenance Tool for Every Vehicle Owner
Vehicle maintenance isn't only about changing engine oil or replacing worn brake pads. Two of the most overlooked yet critical automotive fluids are brake fluid and engine coolant. Ignoring their condition can result in expensive repairs, poor braking performance, overheating, or even complete system failure.
The Phoenix Systems 8006-B Double-Ended Brake Fluid + Coolant Test Strips provide a quick, affordable, and accurate way to monitor both fluids without requiring expensive diagnostic equipment. Designed for professional technicians and DIY enthusiasts alike, this compact kit includes 15 individually foil-wrapped double-ended test strips that help identify fluid deterioration in just a few minutes.
Whether you're maintaining your daily commuter, performance car, truck, SUV, or motorcycle, this testing kit offers an easy preventive maintenance solution.
Product Overview
Product Name: Phoenix Systems 8006-B Double-Ended Brake Fluid + Coolant Test Strips
Package Includes
15 individually foil-wrapped double-ended test strips
Color comparison chart
Testing instructions
Each strip features two separate testing ends:
Brake Fluid Test
Engine Coolant Test
This allows one strip to evaluate two essential vehicle fluids.
Phoenix Systems has specialized in brake maintenance products since 1999, with its brake fluid testing technology used widely in automotive repair shops and service centers. Their patented copper-corrosion testing technology follows Motorist Assurance Program (MAP) recommendations for evaluating brake fluid condition. (Phoenix Systems)
Why Testing Brake Fluid Matters
Many drivers assume brake fluid only needs replacement according to mileage.
Unfortunately, that's not always true.
Brake fluid gradually loses its corrosion inhibitors over time. Internal brake components begin releasing copper during corrosion, making copper concentration an excellent indicator of brake fluid health.
According to Phoenix Systems, copper contamination—not simply moisture—is one of the industry's accepted indicators for determining when brake fluid should be replaced under MAP guidelines. (Phoenix Systems)
Ignoring contaminated brake fluid may lead to:
Reduced braking performance
ABS module damage
Internal brake line corrosion
Expensive hydraulic repairs
Longer stopping distances
Why Engine Coolant Should Be Tested
Coolant performs much more than freeze protection.
It also:
Prevents overheating
Protects aluminum components
Lubricates the water pump
Prevents rust
Maintains proper pH
Old coolant eventually becomes acidic.
Acidic coolant can damage:
Radiator
Heater core
Water pump
Engine block
Cylinder head
The coolant testing side of the Phoenix strip checks:
Freeze protection
Boiling protection
Corrosion protection
Acid levels
This helps determine whether coolant remains effective or requires replacement. (Phoenix Systems)
Key Features
1. Double-Ended Design
Instead of purchasing separate brake fluid and coolant testers, this product combines both.
One strip performs two separate tests.
2. Individually Foil Wrapped
Each strip is sealed separately.
Benefits include:
Longer shelf life
Better testing accuracy
Moisture protection
Convenient portability
3. Fast Testing
Typical testing requires only:
Dip strip
Wait approximately 60–90 seconds (depending on the fluid being tested)
Compare colors with the included chart
No batteries.
No electronics.
No calibration.
4. Professional-Level Accuracy
Unlike visual inspection, these strips provide measurable chemical indicators rather than relying on fluid color alone.
Brake fluid color alone does not reliably indicate whether replacement is necessary. Phoenix Systems' copper-based test is specifically designed to assess corrosion-related degradation. (Phoenix Systems)
How to Use the Test Strips
Brake Fluid Test
Open brake fluid reservoir.
Dip brake-fluid end into fluid for about one second.
Remove excess fluid.
Wait for color development.
Compare with copper contamination chart.
Coolant Test
Only test coolant when the engine is completely cool.
Open coolant reservoir.
Dip coolant end into coolant.
Wait specified time.
Compare with color scale.
Read:
Freeze point
Boiling protection
Corrosion condition
Always follow the safety precautions provided with the product, including never opening a hot cooling system. (Manuals+)
Advantages
Saves Money
Early detection prevents:
ABS replacement
Radiator replacement
Heater core repair
Water pump failure
Brake hydraulic damage
Easy for DIY Users
No special training required.
Color charts are simple to interpret.
Portable
The compact package fits easily inside:
Toolbox
Garage drawer
Glove compartment
Long Shelf Life
Foil packaging helps preserve strip sensitivity.
Professional Grade
Many repair facilities use Phoenix Systems testing products during routine maintenance inspections. (Phoenix Systems)
Pros and Cons
| Pros | Cons |
|---|---|
| Tests two fluids with one strip | Single-use strips |
| Individually sealed | Color comparison requires good lighting |
| No batteries required | Not a replacement for full laboratory analysis |
| Professional-grade accuracy | Limited to 15 tests |
| Quick results | Cannot diagnose every cooling or braking issue |
Who Should Buy This Product?
Ideal for:
DIY mechanics
Professional repair shops
Fleet maintenance
Motorcycle owners
Classic car owners
Truck owners
RV owners
Used car buyers
Preventive maintenance enthusiasts
Comparison with Electronic Testers
| Feature | Phoenix Test Strips | Electronic Tester |
|---|---|---|
| Price | Lower | Higher |
| Maintenance | None | Battery required |
| Portability | Excellent | Good |
| Ease of Use | Very Easy | Moderate |
| Brake Fluid Testing | Yes | Yes |
| Coolant Testing | Yes | Some models only |
Maintenance Tips
Use the strips:
Every oil change
Before long road trips
Before winter
Before summer
After purchasing a used vehicle
During annual maintenance
Preventive testing can identify issues before they become costly repairs.
Frequently Asked Questions
Can these strips test DOT 5 brake fluid?
They are recommended for DOT 3, DOT 4, and DOT 5.1 brake fluids. They are not intended for silicone-based DOT 5 fluid. (Phoenix Systems)
Are they reusable?
No.
Each strip is designed for one-time use.
Can coolant be tested while the engine is hot?
No.
Always allow the cooling system to cool completely before opening the reservoir.
How long do results take?
Generally between 60 and 90 seconds, depending on the test being performed. (Manuals+)
Is this suitable for motorcycles?
Yes.
It works with motorcycles that use compatible brake fluids and liquid-cooled engines.
Final Verdict
The Phoenix Systems 8006-B Double-Ended Brake Fluid + Coolant Test Strips are a practical addition to any vehicle maintenance toolkit. By combining brake fluid and coolant testing into one compact, easy-to-use product, they help drivers monitor two critical systems before problems become expensive or dangerous.
For DIY enthusiasts, fleet operators, and professional technicians alike, the individually wrapped strips offer convenience, consistent accuracy, and a cost-effective way to support preventive maintenance. While they do not replace a full mechanical inspection, they provide valuable insight into fluid condition and can help determine when service is truly needed.
If you want a quick and reliable method to check essential automotive fluids, this kit is a worthwhile investment.
Useful External Resources
Author
Azka Kamil – Automotive Enthusiast
Azka Kamil is an automotive enthusiast specializing in vehicle maintenance, diagnostic tools, aftermarket accessories, and preventive care. His writing focuses on helping drivers make informed decisions through practical reviews, maintenance guides, and evidence-based recommendations for safer, more reliable vehicle ownership.