diff --git a/tutorials/combustion/SOxFoam/0/Sfuel2 b/tutorials/combustion/SOxFoam/0/Sfuel2
deleted file mode 100644
index 52e71c8ec..000000000
--- a/tutorials/combustion/SOxFoam/0/Sfuel2
+++ /dev/null
@@ -1,51 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  4.x                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     M anipulation  |                                                 |
-\*---------------------------------------------------------------------------*/
-FoamFile
-{
-    version     2.0;
-    format      ascii;
-    class       volScalarField;
-    location    "2100";
-    object      reactingCloud1:rhoTrans_C7H16;
-}
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-dimensions      [1 0 0 0 0 0 0];
-
-internalField   uniform 0;                    
-
-boundaryField
-{
-    INLET
-    {
-        type            fixedValue;
-        value           uniform 0;
-    }
-    WALL
-    {
-        type            zeroGradient;
-    }
-    SLIPWALL
-    {
-        type            zeroGradient;
-    }
-    OUTLET
-    {
-        type            zeroGradient;
-    }
-    CYCLIC_half0
-    {
-        type            cyclic;
-    }
-    CYCLIC_half1
-    {
-        type            cyclic;
-    }
-}
-
-// ************************************************************************* //
diff --git a/tutorials/combustion/SOxFoam/0/Sfuel1 b/tutorials/combustion/SOxFoam/0/reactingCloud1:rhoTrans_C7H16
similarity index 99%
rename from tutorials/combustion/SOxFoam/0/Sfuel1
rename to tutorials/combustion/SOxFoam/0/reactingCloud1:rhoTrans_C7H16
index 51e1d77fe..094678f54 100644
--- a/tutorials/combustion/SOxFoam/0/Sfuel1
+++ b/tutorials/combustion/SOxFoam/0/reactingCloud1:rhoTrans_C7H16
@@ -9,7 +9,7 @@ FoamFile
 {
     version     2.0;
     format      ascii;
-    class       volScalarField;
+    class       volScalarField::Internal;
     location    "2100";
     object      reactingCloud1:rhoTrans_C7H16;
 }
@@ -17,7 +17,7 @@ FoamFile
 
 dimensions      [1 0 0 0 0 0 0];
 
-internalField   nonuniform List<scalar>          
+value           nonuniform List<scalar> 
 30654
 (
 0
@@ -30677,33 +30677,5 @@ internalField   nonuniform List<scalar>
 )
 ;
 
-boundaryField
-{
-    INLET
-    {
-        type            fixedValue;
-        value           uniform 0;
-    }
-    WALL
-    {
-        type            zeroGradient;
-    }
-    SLIPWALL
-    {
-        type            zeroGradient;
-    }
-    OUTLET
-    {
-        type            zeroGradient;
-    }
-    CYCLIC_half0
-    {
-        type            cyclic;
-    }
-    CYCLIC_half1
-    {
-        type            cyclic;
-    }
-}
 
 // ************************************************************************* //
diff --git a/tutorials/combustion/SOxFoam/constant/SOxProperties b/tutorials/combustion/SOxFoam/constant/SOxProperties
new file mode 100644
index 000000000..1dce1041c
--- /dev/null
+++ b/tutorials/combustion/SOxFoam/constant/SOxProperties
@@ -0,0 +1,21 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  4.x                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version         2;
+    format          ascii;
+    class           dictionary;
+    location        "constant";
+    object          SOxProperties;
+}
+
+fuelSourceNames         ( reactingCloud1:rhoTrans_C7H16 );
+sulfurMassInFuels         (0.01);
+
+
+// ************************************************************************* //