Ryan Gary

Ryan Gary

With a solid foundation of 20 years in the mechanical industry and a Mechanical Engineering degree, Ryan Gary brings a deep understanding of automotive systems to Engine Oil Journal. Driven by a passion for vehicles and a commitment to providing accurate information, he created this platform to empower drivers to make informed decisions about engine oil care.

Zerex Coolant Chart(For All Products/Ratio/Use)

Zerex Coolant Chart

Each Zerex product uses a unique chemical technology, IAT, OAT, HOAT, or NOAT, to match OEM specifications and provide the right balance of cooling, corrosion protection, and long-life performance. The table below summarizes all major Zerex coolants, including their chemistry…