Quick Summary
Castrol React Performance DOT 4 1L is a brake fluid designed for use in brake systems where DOT 4 fluid is required. It is described as meeting ISO 4925 Class 6 and as being fully compatible with fluids meeting FMVSS 116 DOT 3, DOT 4 and DOT 5.1. It is also formulated for improved low temperature performance.
Who It Is Best For
This suits drivers looking for a DOT 4 brake fluid for routine maintenance or topping up, especially where low temperature performance and compatibility with other listed brake fluid standards matter. It may also appeal to buyers following vehicle manufacturer guidance that specifies this type of fluid.
What To Know Before You Buy
It is described as compatible with other fluids meeting FMVSS 116 DOT 3, DOT 4 and DOT 5.1, but to maintain its performance characteristics it should not be mixed with other brake fluid products. Check that your vehicle calls for DOT 4 brake fluid before ordering.
Pros: Improved low temperature performance and excellent high temperature performance are both highlighted, along with compatibility with several listed fluid standards.
Cons: To keep its performance characteristics, it should not be mixed with other brake fluid products.
Common Buyer Questions
What type of brake fluid is this?
It is Castrol React Performance DOT 4 1L brake fluid.
Is it compatible with other brake fluids?
It is described as compatible with FMVSS 116 DOT 3, DOT 4 and DOT 5.1 fluids.
Can it be mixed with other brake fluids?
It is best not to mix it with other brake fluid products if you want to maintain its performance characteristics.
What is it designed to help with?
It is formulated for improved low temperature performance and high temperature performance.
Does it suit vehicles with electronic stability control?
It is described as being recommended by a number of vehicle manufacturers to assist with the speed and control of their electronic stability control systems.
Key Details
| Detail | What it means in use |
|---|---|
| Product name | Castrol React Performance DOT 4 1L |
| Fluid type | DOT 4 brake fluid |
| Specification | Meets ISO 4925 Class 6 |
| Compatibility | Fully compatible with FMVSS 116 DOT 3, DOT 4 and DOT 5.1 fluids |
| Low temperature performance | Formulated to provide improved low temperature performance |
| High temperature performance | Described as having excellent high temperature performance |
| Manufacturer guidance | Recommended by a number of vehicle manufacturers for use with electronic stability control systems |
Final Buying View
Castrol React Performance DOT 4 1L is a straightforward choice if you need a DOT 4 brake fluid with compatibility across several listed standards and improved low temperature performance. It is best suited to buyers who want a fluid that is clearly described and easy to match with the vehicle requirement. Check your vehicle specification before ordering, and avoid mixing it with other brake fluid products if you want to preserve its performance characteristics.
