diff --git a/regressionTests.cmake b/regressionTests.cmake
index a6c80f47c..b95731309 100644
--- a/regressionTests.cmake
+++ b/regressionTests.cmake
@@ -1017,3 +1017,45 @@ add_test_compareECLFiles(CASENAME krnum_03z
                          ABS_TOL ${abs_tol}
                          REL_TOL ${rel_tol}
                          DIR krnum)
+
+add_test_compareECLFiles(CASENAME model_field_gridunit_cm
+                         FILENAME M_FIELD_GRID_CM
+                         SIMULATOR flow
+                         ABS_TOL ${abs_tol}
+                         REL_TOL ${rel_tol}
+                         DIR gridunit)
+
+add_test_compareECLFiles(CASENAME model_field_gridunit_feet
+                         FILENAME M_FIELD_GRID_FEET
+                         SIMULATOR flow
+                         ABS_TOL ${abs_tol}
+                         REL_TOL ${rel_tol}
+                         DIR gridunit)
+
+add_test_compareECLFiles(CASENAME model_field_gridunit_metres
+                         FILENAME M_FIELD_GRID_METRES
+                         SIMULATOR flow
+                         ABS_TOL ${abs_tol}
+                         REL_TOL ${rel_tol}
+                         DIR gridunit)
+
+add_test_compareECLFiles(CASENAME model_metric_gridunit_cm
+                         FILENAME M_METRIC_GRID_CM
+                         SIMULATOR flow
+                         ABS_TOL ${abs_tol}
+                         REL_TOL ${rel_tol}
+                         DIR gridunit)
+
+add_test_compareECLFiles(CASENAME model_metric_gridunit_feet
+                         FILENAME M_METRIC_GRID_FEET
+                         SIMULATOR flow
+                         ABS_TOL ${abs_tol}
+                         REL_TOL ${rel_tol}
+                         DIR gridunit)
+
+add_test_compareECLFiles(CASENAME model_metric_gridunit_metres
+                         FILENAME M_METRIC_GRID_METRES
+                         SIMULATOR flow
+                         ABS_TOL ${abs_tol}
+                         REL_TOL ${rel_tol}
+                         DIR gridunit)
diff --git a/tests/update_reference_data.sh b/tests/update_reference_data.sh
index 6dfc4e50a..480058f21 100755
--- a/tests/update_reference_data.sh
+++ b/tests/update_reference_data.sh
@@ -202,6 +202,12 @@ tests[krnum_02z]="flow krnum KRNUM-02Z"
 tests[krnum_03x]="flow krnum KRNUM-03X"
 tests[krnum_03y]="flow krnum KRNUM-03Y"
 tests[krnum_03z]="flow krnum KRNUM-03Z"
+tests[model_field_gridunit_cm]="flow gridunit M_FIELD_GRID_CM"
+tests[model_field_gridunit_feet]="flow gridunit M_FIELD_GRID_FEET"
+tests[model_field_gridunit_metres]="flow gridunit M_FIELD_GRID_METRES"
+tests[model_metric_gridunit_cm]="flow gridunit M_METRIC_GRID_CM"
+tests[model_metric_gridunit_feet]="flow gridunit M_METRIC_GRID_FEET"
+tests[model_metric_gridunit_metres]="flow gridunit M_METRIC_GRID_METRES"
 
 changed_tests=""