diff --git a/src/main/java/goodgenerator/blocks/tileEntity/GTMetaTileEntity/DieselGenerator.java b/src/main/java/goodgenerator/blocks/tileEntity/GTMetaTileEntity/DieselGenerator.java
index 43ed65da..2c7e24e5 100644
--- a/src/main/java/goodgenerator/blocks/tileEntity/GTMetaTileEntity/DieselGenerator.java
+++ b/src/main/java/goodgenerator/blocks/tileEntity/GTMetaTileEntity/DieselGenerator.java
@@ -30,7 +30,7 @@ public DieselGenerator(int aID, String aName, String aNameRegional, int aTier) {
 
     public DieselGenerator(String aName, int aTier, String[] aDescription, ITexture[][][] aTextures) {
         super(aName, aTier, aDescription, aTextures);
-        mEfficiency = 100 - aTier * 5;
+        mEfficiency = 100 - aTier * 10;
     }
 
     @Override