Liebherr Pipe layers, RL
AdBlue (DEF) capacity & service interval
Liebherr Pipe layers, RL models utilize AdBlue (DEF) with a capacity range of 56 to 80 liters. The data covers 2 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| RL56 Litronic (1632), Liebherr D936-A7 (15586 ->) |
|
| RL66 Litronic (1633), Liebherr D936-A7 (15104 ->) |
|
Additional Notes
- The RL56 Litronic (serial 15586 onward) carries a 56-liter AdBlue capacity for its selective catalytic reduction system, while the RL66 Litronic (serial 15104 onward) holds a notably larger 80-liter tank for the same SCR setup — a difference of 24 liters between the two pipe layer configurations.
- Both the RL56 and RL66 Litronic models are equipped with the Liebherr D936-A7 engine, and both list AdBlue capacity under normal use conditions, meaning the stated figures apply to standard operating environments rather than severe-duty cycles.
- The 80-liter AdBlue tank on the Liebherr RL66 Litronic represents a substantial reservoir volume, consistent with the demands of a larger machine requiring extended intervals between DEF refills during normal operation.
- A 56-liter AdBlue capacity on the RL56 Litronic, while smaller than the RL66 figure, still represents a sizeable tank relative to many construction equipment applications, reflecting the operational demands of a pipe-laying machine running a D936-A7 SCR-equipped engine.