From 7a560b58796e7c7d9ccfe7e7de663d0b73c9b6de Mon Sep 17 00:00:00 2001
From: Luis Oliveira <luis@ldmodev.com>
Date: Thu, 4 Dec 2025 22:15:49 +0000
Subject: [PATCH] VSS FuelTypeName, IO99

---
 spec/OBD/OBD.vspec | 8 ++++++++
 1 file changed, 8 insertions(+)

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