diff --git a/GameData/FreeIva/Squad/PartCfgs/Squad_passthrough.cfg b/GameData/FreeIva/Squad/PartCfgs/Squad_passthrough.cfg
index 5f229986..0db0f74a 100644
--- a/GameData/FreeIva/Squad/PartCfgs/Squad_passthrough.cfg
+++ b/GameData/FreeIva/Squad/PartCfgs/Squad_passthrough.cfg
@@ -71,3 +71,9 @@
 	FreeIva_AutoPassThrough_VolumeScalar = -0.5 // special case - this one is slanted so more volume is expected to be lost
 }
 
+// 1.25: 75% penalty
+@PART[fuelTankSmallFlat|fuelTankSmall|fuelTank|fuelTank_long]:HAS[~FreeIva_AutoPassThrough]:FOR[FreeIva]
+{
+	FreeIva_AutoPassThrough = true
+	FreeIva_AutoPassThrough_VolumeScalar = -0.75
+}
\ No newline at end of file