- Brakes (DOT)
FMVSS 116 - DOT5.1
Synthetic DOT 5.1 brake fluid, thermally stable and fluid when cold
Business customers only. We sell wholesale, invoiced to registered companies.
SAE J1703 — DOT 3 brake fluid
SAE standard for glycol brake fluids at DOT 3 level, defined by dry and wet boiling point.
FMVSS 116 — DOT 5.1 brake fluid
The US federal motor vehicle safety standard for glycol-based brake fluid, DOT 5.1 grade (highest boiling point of the glycol-based grades).
Brake fluid Class 5.1 — ISO 4925
Class 5.1 of ISO 4925: a non-silicone glycol-based brake fluid matching the DOT 5.1 level, with a higher boiling point than Class 4.
| Property | Typical value | Method |
|---|---|---|
| Appearance | clear | |
| Density at 20°Ckg/m³ | 1045 | ASTM D 1298 |
| Viscosity at -40°Cmm²/s | 890 | ISO 4925/05-5.1 |
| Water content%(m/m) | 0.19 | ASTM D 1364 |
| pH | 7.1 | ISO 4925/05-5.3 |
| Dry boiling point°C | 263 | ISO 4925/05-5.2 |
| Wet boiling point°C | 186 | ISO 4925/05-5.2.6 |

Eni Brake Fluid DOT 5.1 is a high-performance synthetic fluid for braking circuits, meeting the U.S. Federal Motor Vehicle Standard No. 116 / DOT 5.1. Its high boiling point lets it be used safely in demanding ambient conditions, or under prolonged braking that overheats the system, and its viscosity has been adjusted for use at low ambient temperatures too. It is not corrosive to the metals used in brake circuits and does not swell rubber or plastic components, so seals and gaskets are left undamaged; it lubricates well, with an anti-wear action, and stays chemically stable even at high temperature.
Frontier I.G. offers a complete range of solutions across mobility as a whole. Leading lubricants, tyres and innovative technical solutions for automotive, industry and agriculture.