+1... most cold seizures occur due to one of the following:

-Lack of proper warmup on EVERY startup(operator error)
-Sticking open thermostat (debris)
-Lack of proper COOLDOWN or Temp stabilization before shutdown

Make sure that you achieve AT LEAST 120 degrees on Smartcraft BEFORE ACCELERATING.

After a run, allow the engine to idle 45-60 seconds, while monitoring to ensure engine temps "stabilize" in the 120-145 degree range (varies, based on engine model).