diff --git a/Software/src/debugger.cpp b/Software/src/debugger.cpp
index a3d0518..7f56d22 100644
--- a/Software/src/debugger.cpp
+++ b/Software/src/debugger.cpp
@@ -30,6 +30,7 @@ void Debug_ShowDTCs();
 void Debug_dumpGlobals();
 void Debug_printHelp();
 void Debug_Purge();
+void Debug_refillTank();
 const char *uint32_to_binary_string(uint32_t num);
 
 /**
@@ -318,7 +319,8 @@ static const std::map<String, DebugCmdHandler> &getCmdMap()
                  int code = tokens[0].toInt();
                  MaintainDTC((DTCNum_t)code, true, millis());
              }
-         }}
+         }},
+         {"tank_refill", [](const String &) { Debug_refillTank(); }},
     };
     return cmdMap;
 }
@@ -542,6 +544,13 @@ void Debug_Purge()
     Debug_pushMessage("Purging 10 pulses\n");
 }
 
+void Debug_refillTank()
+{
+    PersistenceData.tankRemain_microL = LubeConfig.tankCapacity_ml * 1000;
+    globals.requestEEAction = EE_PDS_SAVE;
+    Debug_pushMessage("Setting Tank to 100%\n");
+}
+
 /**
  * @brief Convert a uint32_t value to a binary string with nibbles separated by a space.
  *