Title: Refill the coolant/additive package.
Course: Diesel Equipment Technology I (20107-I) > Section: Diesel Engines: Servicing the Cooling Systems

Refilling should include

- draining and disposing of coolant according to local and/or Environmental Protection Agency (EPA) regulations
- performing cooling system flushing procedures, according to manufacturer guidelines
- filling the cooling system with a proper mixture of water/antifreeze and additives, according to manufacturer guidelines
- following manufacturer guidelines for refilling coolant and the bleeding process, if necessary.

ASE 4: I. Diesel Engines: E. Cooling Systems (P-2)

Process/Skill Questions:

- What material is the flushing process intended to remove?
- What products can be used for flushing the cooling system?
- What is the purpose of the additive package in a cooling system?
- What is the purpose of a vacuum lift coolant refill system?
- What can happen to an engine if air bubbles remain in the cooling system?