diff --git a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch_Muffler.java b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch_Muffler.java
index 5272a53c..25b620d6 100644
--- a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch_Muffler.java
+++ b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch_Muffler.java
@@ -69,7 +69,7 @@ public class GT_MetaTileEntity_Hatch_Muffler extends GT_MetaTileEntity_Hatch {
     }
     
     public int calculatePollutionReduction(int aPollution){
-    	return (int) (aPollution *(Math.pow(0.5, mTier-1)));
+    	return (int) (aPollution *(Math.pow(0.8, mTier-1)));
     }
 
     @Override
@@ -95,11 +95,12 @@ public class GT_MetaTileEntity_Hatch_Muffler extends GT_MetaTileEntity_Hatch {
         double xPos=aDir.offsetX+aMuffler.getXCoord()+0.25F;
         double yPos=aDir.offsetX+aMuffler.getYCoord()+0.05F;
         double zPos=aDir.offsetX+aMuffler.getZCoord()+0.25F;
-
-        aWorld.spawnParticle("largesmoke", xPos + (new XSTR()).nextFloat()*0.5F, yPos, zPos + (new XSTR()).nextFloat()*0.5F, 0.0D, 0.3D, 0.0D);
-        if(GT_Pollution.getPollutionAtCoords(this.getBaseMetaTileEntity().getXCoord(), this.getBaseMetaTileEntity().getZCoord())>= GT_Mod.gregtechproxy.mPollutionSmogLimit) {
-            aWorld.spawnParticle("largesmoke", xPos + (new XSTR()).nextFloat()*0.5F, yPos, zPos + (new XSTR()).nextFloat()*0.5F, 0.0D, 0.45D, 0.0D);
-            aWorld.spawnParticle("largesmoke", xPos + (new XSTR()).nextFloat()*0.5F, yPos, zPos + (new XSTR()).nextFloat()*0.5F, 0.0D, 0.6D, 0.0D);
+        if((new XSTR()).nextFloat()*100<calculatePollutionReduction(100)){
+            aWorld.spawnParticle("largesmoke", xPos + (new XSTR()).nextFloat()*0.5F, yPos, zPos + (new XSTR()).nextFloat()*0.5F, 0.0D, 0.3D, 0.0D);
+            if(GT_Pollution.getPollutionAtCoords(this.getBaseMetaTileEntity().getXCoord(), this.getBaseMetaTileEntity().getZCoord())>= GT_Mod.gregtechproxy.mPollutionSmogLimit) {
+                aWorld.spawnParticle("largesmoke", xPos + (new XSTR()).nextFloat()*0.5F, yPos, zPos + (new XSTR()).nextFloat()*0.5F, 0.0D, 0.45D, 0.0D);
+                aWorld.spawnParticle("largesmoke", xPos + (new XSTR()).nextFloat()*0.5F, yPos, zPos + (new XSTR()).nextFloat()*0.5F, 0.0D, 0.6D, 0.0D);
+            }
         }
     }
 }
diff --git a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_MultiBlockBase.java b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_MultiBlockBase.java
index 97cbe952..8be2c95a 100644
--- a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_MultiBlockBase.java
+++ b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_MultiBlockBase.java
@@ -846,7 +846,7 @@ public abstract class GT_MetaTileEntity_MultiBlockBase extends MetaTileEntity {
         int mPollutionReduction=0;
         for (GT_MetaTileEntity_Hatch_Muffler tHatch : mMufflerHatches) {
             if (isValidMetaTileEntity(tHatch)) {
-                mPollutionReduction+=tHatch.getPollutionReduction();
+                mPollutionReduction=Math.max(tHatch.calculatePollutionReduction(100),mPollutionReduction);
             }
         }
 
@@ -865,7 +865,7 @@ public abstract class GT_MetaTileEntity_MultiBlockBase extends MetaTileEntity {
                         EnumChatFormatting.RED+ (getIdealStatus() - getRepairStatus())+EnumChatFormatting.RESET+
                         " Efficiency: "+
                         EnumChatFormatting.YELLOW+Float.toString(mEfficiency / 100.0F)+EnumChatFormatting.RESET + " %",
-                "Pollution reduced by: "+ EnumChatFormatting.GREEN + mPollutionReduction+ EnumChatFormatting.RESET+" %"
+                "Pollution reduced to: "+ EnumChatFormatting.GREEN + mPollutionReduction+ EnumChatFormatting.RESET+" %"
         };
     }
 
diff --git a/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_DieselEngine.java b/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_DieselEngine.java
index 140a6d96..e4311a82 100644
--- a/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_DieselEngine.java
+++ b/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_DieselEngine.java
@@ -234,7 +234,7 @@ public class GT_MetaTileEntity_DieselEngine extends GT_MetaTileEntity_MultiBlock
         int mPollutionReduction=0;
         for (GT_MetaTileEntity_Hatch_Muffler tHatch : mMufflerHatches) {
             if (isValidMetaTileEntity(tHatch)) {
-                mPollutionReduction+=tHatch.getPollutionReduction();
+                mPollutionReduction=Math.max(tHatch.calculatePollutionReduction(100),mPollutionReduction);
             }
         }
 
@@ -245,7 +245,7 @@ public class GT_MetaTileEntity_DieselEngine extends GT_MetaTileEntity_MultiBlock
                 "Fuel Value: "+EnumChatFormatting.YELLOW+fuelValue+EnumChatFormatting.RESET+" EU/L",
                 "Fuel Remaining: "+EnumChatFormatting.GOLD+fuelRemaining+EnumChatFormatting.RESET+" L",
                 "Current Efficiency: "+EnumChatFormatting.YELLOW+(mEfficiency/100F)+EnumChatFormatting.YELLOW+" %",
-                "Pollution reduced by: "+ EnumChatFormatting.GREEN + mPollutionReduction+ EnumChatFormatting.RESET+" %"
+                "Pollution reduced to: "+ EnumChatFormatting.GREEN + mPollutionReduction+ EnumChatFormatting.RESET+" %"
         };
     }
 
diff --git a/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_ElectricBlastFurnace.java b/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_ElectricBlastFurnace.java
index eb21679a..44803459 100644
--- a/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_ElectricBlastFurnace.java
+++ b/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_ElectricBlastFurnace.java
@@ -263,7 +263,7 @@ public class GT_MetaTileEntity_ElectricBlastFurnace
         int mPollutionReduction=0;
         for (GT_MetaTileEntity_Hatch_Muffler tHatch : mMufflerHatches) {
             if (isValidMetaTileEntity(tHatch)) {
-                mPollutionReduction+=tHatch.getPollutionReduction();
+                mPollutionReduction=Math.max(tHatch.calculatePollutionReduction(100),mPollutionReduction);
             }
         }
 
@@ -284,7 +284,7 @@ public class GT_MetaTileEntity_ElectricBlastFurnace
                         EnumChatFormatting.YELLOW+Float.toString(mEfficiency / 100.0F)+EnumChatFormatting.RESET + " %",
                 "Heat capacity: "+
                         EnumChatFormatting.GREEN+mHeatingCapacity+EnumChatFormatting.RESET+" K",
-                "Pollution reduced by: "+ EnumChatFormatting.GREEN + mPollutionReduction+ EnumChatFormatting.RESET+" %"
+                "Pollution reduced to: "+ EnumChatFormatting.GREEN + mPollutionReduction+ EnumChatFormatting.RESET+" %"
         };
     }
 }
diff --git a/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_LargeTurbine.java b/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_LargeTurbine.java
index 5ed2db60..5b345915 100644
--- a/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_LargeTurbine.java
+++ b/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_LargeTurbine.java
@@ -204,7 +204,7 @@ public abstract class GT_MetaTileEntity_LargeTurbine extends GT_MetaTileEntity_M
         int mPollutionReduction=0;
         for (GT_MetaTileEntity_Hatch_Muffler tHatch : mMufflerHatches) {
             if (isValidMetaTileEntity(tHatch)) {
-                mPollutionReduction+=tHatch.getPollutionReduction();
+                mPollutionReduction=Math.max(tHatch.calculatePollutionReduction(100),mPollutionReduction);
             }
         }
 
@@ -229,7 +229,7 @@ public abstract class GT_MetaTileEntity_LargeTurbine extends GT_MetaTileEntity_M
                 "Current Speed: "+EnumChatFormatting.YELLOW+(mEfficiency/100F)+EnumChatFormatting.RESET+"%",
                 "Turbine Damage: "+EnumChatFormatting.RED+Integer.toString(tDura)+EnumChatFormatting.RESET+"%",
                 tMaintainance,
-                "Pollution reduced by: "+ EnumChatFormatting.GREEN + mPollutionReduction+ EnumChatFormatting.RESET+" %"
+                "Pollution reduced to: "+ EnumChatFormatting.GREEN + mPollutionReduction+ EnumChatFormatting.RESET+" %"
         };
     }
 
diff --git a/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_MultiFurnace.java b/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_MultiFurnace.java
index d1d04c9d..26b12e81 100644
--- a/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_MultiFurnace.java
+++ b/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_MultiFurnace.java
@@ -237,7 +237,7 @@ public class GT_MetaTileEntity_MultiFurnace
         int mPollutionReduction=0;
         for (GT_MetaTileEntity_Hatch_Muffler tHatch : mMufflerHatches) {
             if (isValidMetaTileEntity(tHatch)) {
-                mPollutionReduction+=tHatch.getPollutionReduction();
+                mPollutionReduction=Math.max(tHatch.calculatePollutionReduction(100),mPollutionReduction);
             }
         }
 
@@ -258,7 +258,7 @@ public class GT_MetaTileEntity_MultiFurnace
                         EnumChatFormatting.YELLOW+Float.toString(mEfficiency / 100.0F)+EnumChatFormatting.RESET + " %",
                 "Multi smelting: "+
                         EnumChatFormatting.GREEN+mLevel*8+EnumChatFormatting.RESET+" Discount: "+EnumChatFormatting.GREEN+"(EU/t) / "+mCostDiscount+EnumChatFormatting.RESET,
-                "Pollution reduced by: "+ EnumChatFormatting.GREEN + mPollutionReduction+ EnumChatFormatting.RESET+" %"
+                "Pollution reduced to: "+ EnumChatFormatting.GREEN + mPollutionReduction+ EnumChatFormatting.RESET+" %"
         };
     }