diff --git a/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersion2.3/vehicle_sampleDualModeDualFuel.xml b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersion2.3/vehicle_sampleDualModeDualFuel.xml
index 580269b3548216bc2a8fac3209d589bdb0b6a8fc..751d7e2c8b4818483c20a7653eed9c10b345d72a 100644
--- a/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersion2.3/vehicle_sampleDualModeDualFuel.xml
+++ b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersion2.3/vehicle_sampleDualModeDualFuel.xml
@@ -31,6 +31,7 @@
 		</v2.1:PTO>
 		<ZeroEmissionVehicle>false</ZeroEmissionVehicle>
 		<VocationalVehicle>false</VocationalVehicle>
+    <NgTankSystem>Compressed</NgTankSystem>
 		<SleeperCab>false</SleeperCab>
 		<v2.1:ADAS xsi:type="AdvancedDriverAssistantSystemsType">
 			<EngineStopStart>true</EngineStopStart>
diff --git a/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersion2.3/vehicle_sampleDualModeDualFuel_WHR.xml b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersion2.3/vehicle_sampleDualModeDualFuel_WHR.xml
index 42024fe28b3bf2afb51341ffb4ef1b0f9c4781c8..91bab9b4360305bb441c96c280422a7418060686 100644
--- a/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersion2.3/vehicle_sampleDualModeDualFuel_WHR.xml
+++ b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersion2.3/vehicle_sampleDualModeDualFuel_WHR.xml
@@ -189,7 +189,7 @@
 								<Entry engineSpeed="2100.00" torque="1100.00" fuelConsumption="5065.00"  electricPower="200.00" />
 							</FuelConsumptionMap>
 						</Fuel>
-						<Fuel type="NG PI">
+						<Fuel type="NG CI">
 							<WHTCUrban>1.0097</WHTCUrban>
 							<WHTCRural>1.0035</WHTCRural>
 							<WHTCMotorway>1.0200</WHTCMotorway>