Toyota Suspension Fluid AHC — Active suspension fluid
Toyota Suspension Fluid AHC is a specialized hydraulic fluid for Active Height Control (AHC) systems used in Toyota and Lexus vehicles. This is the only approved product that guarantees the correct operation of the hydraulic suspension and protects the high-pressure pump.
Product advantages
Stable viscosity (Index 198)
The exceptionally high viscosity index ensures a constant suspension response time to electronic commands during both summer heat and winter cold.
Anti-corrosion protection
Special inhibitors protect the internal surfaces of the system's metal tubes and valves from oxidation and premature wear.
Minimal pump wear
The synthetic base with a specific additive package reduces friction in the plunger pairs of the AHC pump, extending its service life several times over.
Physical and chemical data
| Manufacturer | Toyota Japan |
| Density at 15°C | 0.8328 g/cm³ |
| Viscosity at 100°C | 7.019 mm²/s |
| Flash point | 225 °C |
| Total acid number (TAN) | 0.81 mg KOH/g |
Summary: Original AHC fluid is supplied in a convenient metal can. This is typically sufficient for a partial fluid change or topping up the system.
Need help determining the required volume for a complete flush in your Lexus LX or Land Cruiser? We are always ready to consult — feel free to contact us!
