diff --git a/spec/Powertrain/CombustionEngine.vspec b/spec/Powertrain/CombustionEngine.vspec
index 12d982366..f73b58c88 100644
--- a/spec/Powertrain/CombustionEngine.vspec
+++ b/spec/Powertrain/CombustionEngine.vspec
@@ -153,7 +153,7 @@ IdleHours:
 # Engine coolant temperature
 #
 ECT:
-  datatype: int16
+  datatype: float
   type: sensor
   unit: celsius
   description: Engine coolant temperature.
@@ -163,7 +163,7 @@ ECT:
 # Engine Oil Temperature
 #
 EOT:
-  datatype: int16
+  datatype: float
   type: sensor
   unit: celsius
   description: Engine oil temperature.
diff --git a/spec/Powertrain/ElectricMotor.vspec b/spec/Powertrain/ElectricMotor.vspec
index 9d0e4523b..38826f4db 100644
--- a/spec/Powertrain/ElectricMotor.vspec
+++ b/spec/Powertrain/ElectricMotor.vspec
@@ -57,7 +57,7 @@ Speed:
 # Motor temperature
 #
 Temperature:
-  datatype: int16
+  datatype: float
   type: sensor
   unit: celsius
   description: Motor temperature.
@@ -67,7 +67,7 @@ Temperature:
 # Motor coolant temperature (if applicable)
 #
 CoolantTemperature:
-  datatype: int16
+  datatype: float
   type: sensor
   unit: celsius
   description: Motor coolant temperature (if applicable).
diff --git a/spec/Powertrain/Transmission.vspec b/spec/Powertrain/Transmission.vspec
index ae59b2b1d..8772b3eed 100644
--- a/spec/Powertrain/Transmission.vspec
+++ b/spec/Powertrain/Transmission.vspec
@@ -110,7 +110,7 @@ GearChangeMode:
 # Gearbox temperature
 #
 Temperature:
-  datatype: int16
+  datatype: float
   type: sensor
   unit: celsius
   description: The current gearbox temperature.