diff -r edaee7e60215 src/ai/api/ai_order.cpp
--- a/src/ai/api/ai_order.cpp	Wed Aug 31 17:45:24 2011 +0000
+++ b/src/ai/api/ai_order.cpp	Wed Aug 31 20:42:36 2011 +0200
@@ -176,6 +176,7 @@
 		case OC_RELIABILITY:
 		case OC_MAX_SPEED:
 		case OC_AGE:
+		case OC_REMAINING_LIFETIME:
 			return compare >= CF_EQUALS && compare <= CF_MORE_EQUALS;
 
 		case OC_REQUIRES_SERVICE:
diff -r edaee7e60215 src/ai/api/ai_order.hpp
--- a/src/ai/api/ai_order.hpp	Wed Aug 31 17:45:24 2011 +0000
+++ b/src/ai/api/ai_order.hpp	Wed Aug 31 20:42:36 2011 +0200
@@ -93,6 +93,7 @@
 		OC_AGE,              ///< Skip based on the age, value is in years.
 		OC_REQUIRES_SERVICE, ///< Skip when the vehicle requires service, no value.
 		OC_UNCONDITIONALLY,  ///< Always skip, no compare function, no value.
+		OC_REMAINING_LIFETIME, ///< Skip based on the remaining lifetime
 		OC_INVALID = -1,     ///< An invalid condition, do not use.
 	};
 
diff -r edaee7e60215 src/ai/api/ai_order.hpp.sq
--- a/src/ai/api/ai_order.hpp.sq	Wed Aug 31 17:45:24 2011 +0000
+++ b/src/ai/api/ai_order.hpp.sq	Wed Aug 31 20:42:36 2011 +0200
@@ -66,6 +66,7 @@
 	SQAIOrder.DefSQConst(engine, AIOrder::OC_AGE,                                           "OC_AGE");
 	SQAIOrder.DefSQConst(engine, AIOrder::OC_REQUIRES_SERVICE,                              "OC_REQUIRES_SERVICE");
 	SQAIOrder.DefSQConst(engine, AIOrder::OC_UNCONDITIONALLY,                               "OC_UNCONDITIONALLY");
+	SQAIOrder.DefSQConst(engine, AIOrder::OC_REMAINING_LIFETIME,                            "OC_REMAINING_LIFETIME");
 	SQAIOrder.DefSQConst(engine, AIOrder::OC_INVALID,                                       "OC_INVALID");
 	SQAIOrder.DefSQConst(engine, AIOrder::CF_EQUALS,                                        "CF_EQUALS");
 	SQAIOrder.DefSQConst(engine, AIOrder::CF_NOT_EQUALS,                                    "CF_NOT_EQUALS");