OEM-Correct | ISO 4925 Class 4 | Proven Performance for Modern Brake Systems
Ravenol DOT 4 is a high-quality, fully synthetic brake and clutch fluid developed for vehicles requiring a conventional DOT 4 specification brake fluid. It meets and exceeds all major international standards, including ISO 4925 Class 4, FMVSS 116 DOT 4 and SAE J1704, making it a dependable, correctly specified choice for a wide range of modern and older vehicles.
While it does not feature the ultra-low viscosity characteristics of DOT 4 LV fluids, Ravenol DOT 4 delivers stable hydraulic performance, consistent pedal feel and excellent component protection under everyday driving conditions. It’s a proper, OEM-level brake fluid – not a budget compromise.
This is the kind of DOT 4 fluid we’re happy to recommend for vehicles that don’t explicitly require a low-viscosity Class 6 fluid, but still deserve a correctly engineered product from a brand we trust.
What It’s Designed For
- Daily-driven cars, 4x4s, vans and light commercial vehicles
- Vehicles requiring DOT 4 brake fluid
- Hydraulic brake and clutch systems with conventional ABS
- General road use, towing and mixed driving conditions
- Maintaining reliable braking performance and component longevity
Not Intended For
- Vehicles that specifically require DOT 4 LV or ISO 4925 Class 6 low-viscosity brake fluid
- Vehicles fitted with advanced braking and stability systems, including ABS combined with ESC and traction control, where low-viscosity brake fluid is specified or recommended by the manufacturer
- Motorsport or extreme track use – dedicated racing brake fluids should be used for those applications
If your vehicle manufacturer specifies DOT 4 LV, ISO 4925 Class 6, or an equivalent low-viscosity brake fluid, Ravenol DOT 4 should not be used. Always follow the manufacturer’s brake fluid specification when servicing modern braking systems.
Key Features & Benefits
- Conforms to ISO 4925 Class 4
- Meets FMVSS 116 DOT 4
- Meets SAE J1704
- Stable viscosity for consistent pedal feel
- Reliable performance across a wide temperature range
- High chemical stability and oxidation resistance
- Excellent lubrication for seals, pistons and internal components
- Neutral behaviour towards hoses, seals and brake system materials
- Fully miscible with all DOT 3 and DOT 4 brake fluids of the same specification
Application Notes
- Suitable for hydraulic brake and clutch systems in cars, commercial vehicles and motorcycles where a non-petroleum-based DOT 4 fluid is specified
- Safe to mix with other DOT 3 / DOT 4 brake fluids of the same specification
- For best performance and system cleanliness, a complete brake fluid change is recommended
- Not suitable for vehicles using mineral oil-based brake fluids (e.g. LHM systems found in some Citroën models)
- Always follow the vehicle manufacturer’s brake fluid specification and service intervals
Storage & Safety Information
- Brake fluid is hygroscopic and absorbs moisture over time
- Replace at manufacturer-recommended intervals
- Store only in the original, sealed container
- Avoid contact with paintwork – rinse immediately with water if spilled
- Dispose of used brake fluid responsibly in accordance with local regulations
Specifications
- ISO 4925 Class 4
- FMVSS 116 DOT 4
- SAE J1704
Why We Recommend It
- A proper, OEM-correct DOT 4 brake fluid , not a budget alternative
- Ideal for vehicles that don’t require low-viscosity Class 6 fluids
- Consistent, predictable braking performance for everyday use
- A sensible, high-quality choice from a brand we trust at Auto House Shop
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