diff --git a/changelog.txt b/changelog.txt
index 7648f99..a995bf8 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -10,6 +10,8 @@ Date: 01.06.2022
 
   Changes:
     - buffed 248ks roboport and charging station charging
+    - reduced diesel train pollution output
+    - reduced aluminum ceramic composite and glass fiber composite usage for buildings + engines in overhaul mode
 ---------------------------------------------------------------------------------------------------
 Version: 1.0.24
 Date: 27.5.2022
diff --git a/prototypes/electronic/el_diesel_train.lua b/prototypes/electronic/el_diesel_train.lua
index f24ebd5..3f965fb 100644
--- a/prototypes/electronic/el_diesel_train.lua
+++ b/prototypes/electronic/el_diesel_train.lua
@@ -64,7 +64,7 @@ data:extend({
             fuel_category = 'el_train_fuel',
             fuel_inventory_size = 3,
             effectitvity = 1,
-            emissions_per_minute = 40,
+            emissions_per_minute = 20,
             smoke = {
                 {
                     name = "train-smoke",
@@ -174,11 +174,11 @@ data:extend({
         },
         working_sound = { 
             sound = { filename ='__base__/sound/train-engine.ogg'},
-            apparent_volume = 0.2,
+            apparent_volume = 0.1,
         }, 
         vehicle_impact_sound = {
             filename = "__base__/sound/car-metal-impact-6.ogg",
-            volume = 0.3
+            volume = 0.1
         },
 
     },
diff --git a/scripts/overhaul.lua b/scripts/overhaul.lua
index a06bf3e..175662c 100644
--- a/scripts/overhaul.lua
+++ b/scripts/overhaul.lua
@@ -62,36 +62,36 @@ end
 --[BUILDINGS]
 
 building_table = {
-    {"assembling-machine-2",    "el_materials_ALK", 5},
+    {"assembling-machine-2",    "el_materials_ALK", 3},
     --
     --{"fast-inserter",           "el_aluminum_item", 2},
     --{"long-handed-inserter",    "el_aluminum_item", 2},
     --
-    {"engine-unit",             "el_materials_ALK", 5},
+    {"engine-unit",             "el_materials_ALK", 3},
     {"fast-transport-belt",     "el_materials_ALK", 1},
     {"fast-splitter",           "el_materials_ALK", 3},
     {"fast-underground-belt",   "el_materials_ALK", 8},
-    {"chemical-plant",          "el_materials_ALK", 10},
-    {"oil-refinery",            "el_materials_ALK", 10},
-    {"medium-electric-pole",    "el_materials_ALK", 4},
-    {"big-electric-pole",       "el_materials_ALK", 8},
+    {"chemical-plant",          "el_materials_ALK", 6},
+    {"oil-refinery",            "el_materials_ALK", 6},
+    {"medium-electric-pole",    "el_materials_ALK", 2},
+    {"big-electric-pole",       "el_materials_ALK", 4},
 
     {"stack-inserter",          "el_energy_crystal_item", 2},
 
     {"express-splitter",        "fi_materials_GFK", 3},
     {"express-transport-belt",  "fi_materials_GFK", 1},
     {"express-underground-belt","fi_materials_GFK", 8},
-    {"electric-furnace",        "fi_materials_GFK", 12},
-    {"centrifuge",              "fi_materials_GFK", 25},
-    {"steam-turbine",           "fi_materials_GFK", 20},
+    {"electric-furnace",        "fi_materials_GFK", 8},
+    {"centrifuge",              "fi_materials_GFK", 20},
+    {"steam-turbine",           "fi_materials_GFK", 15},
     {"heat-exchanger",          "fi_materials_GFK", 10},
-    {"heat-pipe",               "fi_materials_titan",2},
+    {"heat-pipe",               "fi_materials_titan",1},
 
     {"rocket-silo",             "fu_materials_KFK", 40},
 
-    {"beacon",                  "fi_materials_titan",   12},
-    {"substation",              "fi_materials_titan",   6},
-    {"assembling-machine-3",    "fi_materials_titan",   6},
+    {"beacon",                  "fi_materials_titan",   8},
+    {"substation",              "fi_materials_titan",   4},
+    {"assembling-machine-3",    "fi_materials_titan",   4},
 }
 
 --[ITEMS]