diff --git a/src/lang/welsh.txt b/src/lang/welsh.txt
--- a/src/lang/welsh.txt
+++ b/src/lang/welsh.txt
@@ -3525,10 +3525,10 @@ STR_ENGINE_PREVIEW_MAGLEV_LOCOMOTIVE                            :trên maglef
 
 STR_ENGINE_PREVIEW_COST_WEIGHT_SPEED_POWER                      :{BLACK}Côst: {CURRENCY_LONG} Pwysau: {WEIGHT_SHORT}{}Cyflymder: {VELOCITY}  Pŵer: {POWER}{}Côst Rhedeg: {CURRENCY_LONG}/bl{}Gallu cludo: {CARGO_LONG}
 STR_ENGINE_PREVIEW_COST_WEIGHT_SPEED_POWER_MAX_TE               :{BLACK}Cost: {CURRENCY_LONG} Pwysau: {WEIGHT_SHORT}{}Cyflymder: {VELOCITY}  Pŵer: {POWER}  Grym Uchaf: {6:FORCE}{}Cost Rhedeg: {4:CURRENCY_LONG}/bl{}Cynhwysedd: {5:CARGO_LONG}
-STR_ENGINE_PREVIEW_COST_MAX_SPEED_CAPACITY_CAPACITY_RUNCOST     :{BLACK}Cost: {CURRENCY_LONG} Cyflym. Uchaf: {VELOCITY}{}Cynhwysedd: {CARGO_LONG}, {CARGO_LONG}{}Côst Rhedeg: {CURRENCY_LONG}/bl
-STR_ENGINE_PREVIEW_COST_MAX_SPEED_CAPACITY_RUNCOST              :{BLACK}Cost: {CURRENCY_LONG} Cyflym. Uchaf: {VELOCITY}{}Cynhwysedd: {CARGO_LONG}{}Cost Rhedeg: {CURRENCY_LONG}/bl
-STR_ENGINE_PREVIEW_COST_MAX_SPEED_RANGE_CAPACITY_CAPACITY_RUNCOST:{BLACK}Cost: {CURRENCY_LONG} Cyf. Uchaf: {VELOCITY} Pellter: {COMMA} teil{}Cynhwysedd: {CARGO_LONG}, {CARGO_LONG}{}Cost Rhedeg: {CURRENCY_LONG}/bl
-STR_ENGINE_PREVIEW_COST_MAX_SPEED_RANGE_CAPACITY_RUNCOST        :{BLACK}Cost: {CURRENCY_LONG} Cyf. Uchaf: {VELOCITY} Pellter: {COMMA} teil{}Cynhwysedd: {CARGO_LONG}{}Cost Rhedeg: {CURRENCY_LONG}/bl
+STR_ENGINE_PREVIEW_COST_MAX_SPEED_CAP_CAP_RUNCOST               :{BLACK}Cost: {CURRENCY_LONG} Cyflym. Uchaf: {VELOCITY}{}Cynhwysedd: {CARGO_LONG}, {CARGO_LONG}{}Côst Rhedeg: {CURRENCY_LONG}/bl
+STR_ENGINE_PREVIEW_COST_MAX_SPEED_CAP_RUNCOST                   :{BLACK}Cost: {CURRENCY_LONG} Cyflym. Uchaf: {VELOCITY}{}Cynhwysedd: {CARGO_LONG}{}Cost Rhedeg: {CURRENCY_LONG}/bl
+STR_ENGINE_PREVIEW_COST_MAX_SPEED_RANGE_CAP_CAP_RUNCOST         :{BLACK}Cost: {CURRENCY_LONG} Cyf. Uchaf: {VELOCITY} Pellter: {COMMA} teil{}Cynhwysedd: {CARGO_LONG}, {CARGO_LONG}{}Cost Rhedeg: {CURRENCY_LONG}/bl
+STR_ENGINE_PREVIEW_COST_MAX_SPEED_RANGE_CAP_RUNCOST             :{BLACK}Cost: {CURRENCY_LONG} Cyf. Uchaf: {VELOCITY} Pellter: {COMMA} teil{}Cynhwysedd: {CARGO_LONG}{}Cost Rhedeg: {CURRENCY_LONG}/bl
 
 # Autoreplace window
 STR_REPLACE_VEHICLES_WHITE                                      :{WHITE}Disodli {STRING} - {STRING}