diff --git a/code/game/objects/items/weapons/tools.dm b/code/game/objects/items/weapons/tools.dm
index 31ba83fc444..03789291cad 100644
--- a/code/game/objects/items/weapons/tools.dm
+++ b/code/game/objects/items/weapons/tools.dm
@@ -397,6 +397,11 @@
 	if(ishuman(M))
 		var/mob/living/carbon/human/H = M
 		var/obj/item/organ/external/S = H.bodyparts_by_name[user.zone_sel.selecting]
+
+		if(H.bleed_rate > 1 && H.isSynthetic())
+			if(get_fuel() >= 1)
+				H.bleed_rate = 0
+				user.visible_message("<span class='alert'>\The [user] welds a leak on \the [M] with \the [src].</span>")
 		if(!S)
 			return
 
@@ -417,6 +422,7 @@
 						playsound(src.loc, usesound, 50, 1)
 						S.heal_damage(15,0,0,1)
 						user.visible_message("<span class='alert'>\The [user] patches some dents on \the [M]'s [S.name] with \the [src].</span>")
+
 				else if(S.open != 2)
 					to_chat(user, "<span class='warning'>Need more welding fuel!</span>")
 					return 1
diff --git a/code/modules/mob/living/carbon/human/examine.dm b/code/modules/mob/living/carbon/human/examine.dm
index d970b696ca4..f0ad4855d50 100644
--- a/code/modules/mob/living/carbon/human/examine.dm
+++ b/code/modules/mob/living/carbon/human/examine.dm
@@ -324,16 +324,17 @@
 		else
 			msg += "[t_He] [t_is] quite chubby.\n"
 
-	if(blood_volume < BLOOD_VOLUME_SAFE)
+	if(!isSynthetic() && blood_volume < BLOOD_VOLUME_SAFE)
 		msg += "[t_He] [t_has] pale skin.\n"
 
 	if(bleedsuppress)
 		msg += "[t_He] [t_is] bandaged with something.\n"
 	else if(bleed_rate)
+		var/bleed_message = !isSynthetic() ? "bleeding" : "leaking"
 		if(reagents.has_reagent("heparin"))
-			msg += "<B>[t_He] [t_is] bleeding uncontrollably!</B>\n"
+			msg += "<B>[t_He] [t_is] [bleed_message] uncontrollably!</B>\n"
 		else
-			msg += "<B>[t_He] [t_is] bleeding!</B>\n"
+			msg += "<B>[t_He] [t_is] [bleed_message]!</B>\n"
 
 	if(reagents.has_reagent("teslium"))
 		msg += "[t_He] is emitting a gentle blue glow!\n"
diff --git a/code/modules/mob/living/carbon/human/life.dm b/code/modules/mob/living/carbon/human/life.dm
index ccddc56ca16..8e8c1a18ae8 100644
--- a/code/modules/mob/living/carbon/human/life.dm
+++ b/code/modules/mob/living/carbon/human/life.dm
@@ -248,7 +248,7 @@
 	if(!L || L && (L.status & ORGAN_DEAD))
 		if(health >= config.health_threshold_crit)
 			adjustOxyLoss(HUMAN_MAX_OXYLOSS + 1)
-		else
+		else if(!(NOCRITDAMAGE in species.species_traits))
 			adjustOxyLoss(HUMAN_CRIT_MAX_OXYLOSS)
 
 		failed_last_breath = TRUE
diff --git a/code/modules/mob/living/carbon/human/species/species.dm b/code/modules/mob/living/carbon/human/species/species.dm
index d8c80c8b3fe..bc9f58be6d2 100644
--- a/code/modules/mob/living/carbon/human/species/species.dm
+++ b/code/modules/mob/living/carbon/human/species/species.dm
@@ -304,6 +304,10 @@
 		H.setOxyLoss(0)
 		H.SetLoseBreath(0)
 
+		var/takes_crit_damage = (!(NOCRITDAMAGE in species_traits))
+		if((H.health <= config.health_threshold_crit) && takes_crit_damage)
+			H.adjustBruteLoss(1)
+
 /datum/species/proc/handle_dna(var/mob/living/carbon/C, var/remove) //Handles DNA mutations, as that doesn't work at init. Make sure you call genemutcheck on any blocks changed here
 	return
 
diff --git a/code/modules/mob/living/carbon/human/species/station.dm b/code/modules/mob/living/carbon/human/species/station.dm
index 6bf8ceeb859..63479b98366 100644
--- a/code/modules/mob/living/carbon/human/species/station.dm
+++ b/code/modules/mob/living/carbon/human/species/station.dm
@@ -935,20 +935,21 @@
 	remains_type = /obj/effect/decal/remains/robot
 
 	eyes = "blank_eyes"
-	brute_mod = 2.5 // 100% * 2.5 * 0.6 (robolimbs) ~= 150%
-	burn_mod = 2.5  // So they take 50% extra damage from brute/burn overall.
+	brute_mod = 2.28 // 100% * 2.28 * 0.6 (robolimbs) ~= 150%
+	burn_mod = 2.28  // So they take 50% extra damage from brute/burn overall.
 	tox_mod = 0
 	clone_mod = 0
 	oxy_mod = 0
 	death_message = "gives one shrill beep before falling limp, their monitor flashing blue before completely shutting off..."
 
-	species_traits = list(IS_WHITELISTED, NO_BREATHE, NO_SCAN, NO_BLOOD, NO_PAIN, NO_DNA, RADIMMUNE, VIRUSIMMUNE, NOTRANSSTING)
+	species_traits = list(IS_WHITELISTED, NO_BREATHE, NO_SCAN, NO_INTORGANS, NO_PAIN, NO_DNA, RADIMMUNE, VIRUSIMMUNE, NOTRANSSTING)
 	clothing_flags = HAS_UNDERWEAR | HAS_UNDERSHIRT | HAS_SOCKS
 	bodyflags = HAS_SKIN_COLOR | HAS_HEAD_MARKINGS | HAS_HEAD_ACCESSORY | ALL_RPARTS
 	dietflags = 0		//IPCs can't eat, so no diet
 	taste_sensitivity = TASTE_SENSITIVITY_NO_TASTE
 
-	blood_color = "#030303"
+	blood_color = "#3C3C3C"
+	exotic_blood = "oil"
 	blood_damage_type = BURN
 
 	//Default styles for created mobs.
diff --git a/code/modules/reagents/chemistry/reagents/misc.dm b/code/modules/reagents/chemistry/reagents/misc.dm
index a67fcd0f751..586b197945d 100644
--- a/code/modules/reagents/chemistry/reagents/misc.dm
+++ b/code/modules/reagents/chemistry/reagents/misc.dm
@@ -194,6 +194,11 @@
 	reagent_state = LIQUID
 	color = "#3C3C3C"
 	taste_message = "motor oil"
+	process_flags = ORGANIC | SYNTHETIC
+
+/datum/reagent/oil/reaction_turf(turf/T, volume)
+	if(volume >= 3 && !isspaceturf(T) && !locate(/obj/effect/decal/cleanable/blood/oil) in T)
+		new /obj/effect/decal/cleanable/blood/oil(T)
 
 /datum/reagent/iodine
 	name = "Iodine"
diff --git a/code/modules/surgery/organs/blood.dm b/code/modules/surgery/organs/blood.dm
index 88e8341d37c..f2e2c8d83a5 100644
--- a/code/modules/surgery/organs/blood.dm
+++ b/code/modules/surgery/organs/blood.dm
@@ -1,4 +1,4 @@
-/****************************************************
+F/****************************************************
 				BLOOD SYSTEM
 ****************************************************/
 
@@ -64,7 +64,7 @@
 			var/obj/item/organ/external/BP = X
 			var/brutedamage = BP.brute_dam
 
-			if(BP.status & ORGAN_ROBOT)
+			if((BP.status & ORGAN_ROBOT) && !isSynthetic())
 				continue
 
 			//We want an accurate reading of .len
diff --git a/code/modules/surgery/organs/lungs.dm b/code/modules/surgery/organs/lungs.dm
index 39c79865b62..ed70de522f1 100644
--- a/code/modules/surgery/organs/lungs.dm
+++ b/code/modules/surgery/organs/lungs.dm
@@ -83,7 +83,7 @@
 	if(!breath || (breath.total_moles() == 0))
 		if(H.health >= config.health_threshold_crit)
 			H.adjustOxyLoss(HUMAN_MAX_OXYLOSS)
-		else
+		else if(!(NOCRITDAMAGE in H.species.species_traits))
 			H.adjustOxyLoss(HUMAN_CRIT_MAX_OXYLOSS)
 
 		H.failed_last_breath = TRUE
diff --git a/code/modules/surgery/robotics.dm b/code/modules/surgery/robotics.dm
index 53219ed8a14..da99e3620e0 100644
--- a/code/modules/surgery/robotics.dm
+++ b/code/modules/surgery/robotics.dm
@@ -205,6 +205,9 @@
 	if(!affected)
 		return -1
 
+	if(target.bleed_rate > 1)//heal bleeding if it exists while we are here.
+		target.bleed_rate = 0
+
 	if(implement_type in implements_heal_burn)
 		current_type = "burn"
 		var/obj/item/stack/cable_coil/C = tool