diff --git a/flow/flow_blackoil_alugrid.cpp b/flow/flow_blackoil_alugrid.cpp
index 6432a2efc..f18f15865 100644
--- a/flow/flow_blackoil_alugrid.cpp
+++ b/flow/flow_blackoil_alugrid.cpp
@@ -17,9 +17,15 @@
   along with OPM.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include <config.h>
-// The default in dune-ALUGrird is "DISABLE_ALUGRID_SFC_ORDERING is false"
-#undef DISABLE_ALUGRID_SFC_ORDERING
-#undef USE_ALUGRID_SFC_ORDERING
+// By default, dune-ALUGrid uses Space-Filling Curve (SFC) ordering
+// for cells to optimize data access patterns for adaptive mesh refinements/coarsening.
+// However, if you want to use Cartesian ordering, as is used in OPM, you
+// can switch to it by defining the macro #define DISABLE_SFC_ORDERING 1.
+// This will change the default cell order to Cartesian.
+// Note that this option is not available for pre-built or installed versions of dune-ALUGrid.
+// To enable changig to Cartesian ordering, you will need to rebuild dune-ALUGrid from source, ensuring 
+// the build configuration allows disabling SFC ordering from OPM.
+// For more details, refer to the files gridfactory.hh and aluinline.hh located in the dune-alugrid/3d/
 
 #include <dune/alugrid/grid.hh>
 #include <opm/simulators/flow/Main.hpp>
diff --git a/opm/simulators/flow/AluGridVanguard.hpp b/opm/simulators/flow/AluGridVanguard.hpp
index 807455b8d..5646db1b4 100644
--- a/opm/simulators/flow/AluGridVanguard.hpp
+++ b/opm/simulators/flow/AluGridVanguard.hpp
@@ -325,8 +325,7 @@ protected:
 
         factory_ = std::make_unique<Factory>();
         grid_ = factory_->convert(*equilGrid_, cartesianCellId_, ordering_);
-        OpmLog::warning("Space Filling Curve Ordering (SFCO) is used");
-        OpmLog::warning("Add '#define DISABLE_ALUGRID_SFC_ORDERING 1'  to disable SFC reordering");
+        OpmLog::warning("Space Filling Curve (SFC) ordering is enabled: see flow_blackoil_alugrid for more informations on disabling/enabling SFC reordering");
         equilGridToGrid_.resize(ordering_.size());
         for (std::size_t index = 0; index < ordering_.size(); ++index) {
             equilGridToGrid_[ordering_[index]] = index;