diff --git a/GameData/RealismOverhaul/Engine_Configs/Agena_XLR81_Config.cfg b/GameData/RealismOverhaul/Engine_Configs/Agena_XLR81_Config.cfg
index 34f4ba2f84..540a36ee31 100644
--- a/GameData/RealismOverhaul/Engine_Configs/Agena_XLR81_Config.cfg
+++ b/GameData/RealismOverhaul/Engine_Configs/Agena_XLR81_Config.cfg
@@ -13,7 +13,7 @@
 //	ISP: 207 SL / 265.5 Vac		SL calculated with RPA
 //	Burn Time: 60
 //	Chamber Pressure: 3.4 MPa
-//	Propellant: IRFNA-III / RP1
+//	Propellant: IRFNA-III / JP-4
 //	Prop Ratio: 2.55
 //	Throttle: N/A
 //	Nozzle Ratio: 15
@@ -28,7 +28,7 @@
 //	ISP: 207 SL / 265.5 Vac		SL calculated with RPA
 //	Burn Time: 100
 //	Chamber Pressure: 3.4 MPa
-//	Propellant: IRFNA-III / RP1
+//	Propellant: IRFNA-III / JP-4
 //	Prop Ratio: 2.55
 //	Throttle: N/A
 //	Nozzle Ratio: 15
@@ -249,13 +249,13 @@
 			gimbalRange = 0
 			PROPELLANT
 			{
-				name = RP-1
-				ratio = 0.4318
+				name = Kerosene
+				ratio = 0.4411
 			}
 			PROPELLANT
 			{
 				name = IRFNA-III
-				ratio = 0.5682
+				ratio = 0.5589
 				DrawGauge = True
 			}
 			atmosphereCurve
@@ -298,13 +298,13 @@
 			gimbalRange = 5
 			PROPELLANT
 			{
-				name = RP-1
-				ratio = 0.4318
+				name = Kerosene
+				ratio = 0.4411
 			}
 			PROPELLANT
 			{
 				name = IRFNA-III
-				ratio = 0.5682
+				ratio = 0.5589
 				DrawGauge = True
 			}
 			atmosphereCurve