diff --git a/src/openttd.cpp b/src/openttd.cpp
index f341476326..275a8d1d0c 100644
--- a/src/openttd.cpp
+++ b/src/openttd.cpp
@@ -1398,9 +1398,13 @@ void CheckCaches(bool force_check)
 			if (memcmp(&grf_cache[length], &u->grf_cache, sizeof(NewGRFCache)) != 0) {
 				DEBUG(desync, 0, "newgrf cache mismatch: type %i, vehicle %i, company %i, unit number %i, wagon %i", (int)v->type, v->index, (int)v->owner, v->unitnumber, length);
 			}
-			if (memcmp(&veh_cache[length], &u->vcache, sizeof(VehicleCache)) != 0) {
+			if (veh_cache[length].cached_max_speed != u->vcache.cached_max_speed || veh_cache[length].cached_cargo_age_period != u->vcache.cached_cargo_age_period ||
+					veh_cache[length].cached_vis_effect != u->vcache.cached_vis_effect || HasBit(veh_cache[length].cached_veh_flags ^ u->vcache.cached_veh_flags, VCF_LAST_VISUAL_EFFECT)) {
 				DEBUG(desync, 0, "vehicle cache mismatch: type %i, vehicle %i, company %i, unit number %i, wagon %i", (int)v->type, v->index, (int)v->owner, v->unitnumber, length);
 			}
+			if (u->IsGroundVehicle() && (HasBit(u->GetGroundVehicleFlags(), GVF_GOINGUP_BIT) || HasBit(u->GetGroundVehicleFlags(), GVF_GOINGDOWN_BIT)) && u->GetGroundVehicleCache()->cached_slope_resistance && HasBit(v->vcache.cached_veh_flags, VCF_GV_ZERO_SLOPE_RESIST)) {
+				DEBUG(desync, 0, "VCF_GV_ZERO_SLOPE_RESIST set incorrectly: type %i, vehicle %i, company %i, unit number %i, wagon %i", (int)v->type, v->index, (int)v->owner, v->unitnumber, length);
+			}
 			if (veh_old[length]->acceleration != u->acceleration) {
 				DEBUG(desync, 0, "acceleration mismatch: vehicle %i, company %i, unit number %i, wagon %i", v->index, (int)v->owner, v->unitnumber, length);
 			}