diff --git a/spec/OBD/OBD.vspec b/spec/OBD/OBD.vspec
index a689c858b..2139254ff 100644
--- a/spec/OBD/OBD.vspec
+++ b/spec/OBD/OBD.vspec
@@ -467,6 +467,14 @@ FuelType:
   max: 23
   description: PID 51 - Fuel type
 
+FuelTypeName:
+  datatype: string
+  type: attribute
+  allowed: ['NOT AVAILABLE', 'GASOLINE', 'METHANOL', 'ETHANOL', 'DIESEL', 'LPG', 'CNG', 'PROPANE', 'ELECTRIC', 
+  'BIFUEL RUNNING GASOLINE', 'BIFUEL RUNNING METHANOL', 'BIFUEL RUNNING ETHANOL', 'BIFUEL RUNNING LPG', 'BIFUEL RUNNING CNG', 'BIFUEL RUNNING PROPANE', 'BIFUEL RUNNING ELECTRICITY', 'BIFUEL RUNNING ELECTRIC AND COMBUSTION ENGINE', 'HYBRID GASOLINE', 'HYBRID ETHANOL',
+  'HYBRID DIESEL', 'HYBRID ELECTRIC', 'HYBRID RUNNING ELECTRIC AND COMBUSTION ENGINE', 'HYBRID REGENERATIVE', 'BIFUEL RUNNING DIESEL']
+  description: Fuel type names decoded from PID 51.
+
 EthanolPercent:
   datatype: float
   type: sensor