Vertex HDD Cool RTP is a super long life pre-mixed antifreeze, anti boil product for use in all radiator types. Vertex HDD Cool RTP is manufactured using Hybrid Additive Technology. Coloured Fluorescent Yellow to help identification of leaks. This is one of the elite product of our cooling liquid range.

Vertex HDD Cool RTP is designed for use in:

• Vertex HDD Cool RTP is one of the elite products of our cooling liquid range.
• It does not require an initial charge of supplemental coolant additives (SCAs) upon initial fill in heavy-duty diesel applications as the product is specially formulated to protect heavy-duty diesel wet sleeve liners. SCA addition is application dependent and should only be added as and when required by the vehicle’s OEM.
• Vertex HDD Cool RTP is designed for Universal use, it fully meets or exceeds standard industry requirements for automotive, light duty, and heavy-duty diesel applications.
• Vertex HDD Cool RTP is compatible with both conventional and OAT coolants although to get the best performance (regarding issues such as extended life and time between SCA additions) it is best to flush the old coolant and replace it with HDD Cool.