ZF TE-ML 21L

Specification ZF TE‑ML 21L defines the requirements for a synthetic transmission oil that provides stable viscosity over a wide temperature range, high thermal resistance, protection against oxidation and wear, as well as optimal friction properties for electronically controlled clutch actuation. This approved ZF oil is intended for automatic gearboxes of series 4HP, 5HP, 6HP and 8HP, which are installed in passenger cars, trucks and commercial vehicles, including trucks and vans. TE‑ML 21L meets the requirements for low foam formation and is compatible with transmission cooling systems, allowing stable operation under high loads. By choosing oil that meets this specification you receive a product that complies with the original ZF recommendations and guarantees long‑term gearbox operation without the risk of premature wear.