diff --git a/fbw-a380x/src/wasm/systems/a380_systems/src/hydraulic/mod.rs b/fbw-a380x/src/wasm/systems/a380_systems/src/hydraulic/mod.rs
index bb5dc48b4ab..9dd2fa99372 100644
--- a/fbw-a380x/src/wasm/systems/a380_systems/src/hydraulic/mod.rs
+++ b/fbw-a380x/src/wasm/systems/a380_systems/src/hydraulic/mod.rs
@@ -139,15 +139,15 @@ impl A380HydraulicReservoirFactory {
         Reservoir::new(
             context,
             HydraulicColor::Green,
-            Volume::new::<liter>(23.),
-            Volume::new::<liter>(18.),
-            Volume::new::<gallon>(3.6) + reservoir_offset_when_gear_up,
+            Volume::new::<liter>(100.),
+            Volume::new::<liter>(90.),
+            Volume::new::<gallon>(12.) + reservoir_offset_when_gear_up,
             vec![PressureSwitch::new(
                 Pressure::new::<psi>(25.),
-                Pressure::new::<psi>(22.),
+                Pressure::new::<psi>(21.76),
                 PressureSwitchType::Relative,
             )],
-            Volume::new::<liter>(3.),
+            Volume::new::<liter>(5.),
         )
     }
 
@@ -155,15 +155,15 @@ impl A380HydraulicReservoirFactory {
         Reservoir::new(
             context,
             HydraulicColor::Yellow,
-            Volume::new::<liter>(20.),
-            Volume::new::<liter>(18.),
-            Volume::new::<gallon>(3.6),
+            Volume::new::<liter>(100.),
+            Volume::new::<liter>(90.),
+            Volume::new::<gallon>(12.7),
             vec![PressureSwitch::new(
                 Pressure::new::<psi>(25.),
-                Pressure::new::<psi>(22.),
+                Pressure::new::<psi>(21.76),
                 PressureSwitchType::Relative,
             )],
-            Volume::new::<liter>(3.),
+            Volume::new::<liter>(5.),
         )
     }
 }
diff --git a/fbw-a380x/src/wasm/systems/a380_systems/src/pneumatic.rs b/fbw-a380x/src/wasm/systems/a380_systems/src/pneumatic.rs
index 6f4aac7f2c1..d94f3289386 100644
--- a/fbw-a380x/src/wasm/systems/a380_systems/src/pneumatic.rs
+++ b/fbw-a380x/src/wasm/systems/a380_systems/src/pneumatic.rs
@@ -179,22 +179,22 @@ impl A380Pneumatic {
                 context,
                 HydraulicColor::Green,
                 VariableVolumeContainer::new(
-                    Volume::new::<gallon>(2.5),
-                    Pressure::new::<psi>(52.),
+                    Volume::new::<gallon>(14.),
+                    Pressure::new::<psi>(65.3),
                     ThermodynamicTemperature::new::<degree_celsius>(15.),
                 ),
-                Pressure::new::<psi>(75.),
+                Pressure::new::<psi>(75.42),
                 6e-2,
             ),
             yellow_hydraulic_reservoir_with_valve: PressurisedReservoirWithExhaustValve::new(
                 context,
                 HydraulicColor::Yellow,
                 VariableVolumeContainer::new(
-                    Volume::new::<gallon>(1.7),
+                    Volume::new::<gallon>(14.),
                     Pressure::new::<psi>(65.),
                     ThermodynamicTemperature::new::<degree_celsius>(15.),
                 ),
-                Pressure::new::<psi>(75.),
+                Pressure::new::<psi>(75.42),
                 6e-2,
             ),
             packs: [PackComplex::new(context, 1), PackComplex::new(context, 2)],