Well said. And while you're at it, have them change the water pump
impeller. Unless you know for sure it is less than 3 years old, you should
change it to be certain it is fresh. This is a wear prone part and the
price of leaving it too long is engine overheating and possible meltdown.

Because I will bring the motor in for service/maintenance, I will ask
them to replace the water pump impeller. Thanks for the suggestion.

Jay Chan