BG CT4 Coolant Transfusion System

BG CT4 Coolant Transfusion System uses a vacuum to remove worn out coolant from the cooling system and then installs new 50/50 coolant back into the system with no air pockets.

Engine coolant is under extreme pressure to perform. As coolant flows through the engine, it gradually loses its additives and thus becomes corrosive and unable to effectively dissipate heat from the engine or insulate it from the cold. Conventional drain-and-fill methods of changing coolant are time-consuming and messy.


• Exchanges worn out coolant for fresh coolant
• Prevents the intermixing of new and used coolant
• Uses a vacuum to remove worn out coolant, then installs clean 50/50 coolant without air bubbles.
• Performs through the radiator cap

Like the BG CT2, the BG CT4 performs an effective BG Cooling System Service. However, the BG CT2 exchanges the old and new fluid simultaneously while the BG CT4 vacuums out the used fluid and then installs new fluid.

BG Cooling System Service

BG CT4 Coolant Transfusion System can be part of the BG Cooling System Service.

Find a shop near you that offers the BG Cooling System Service!

BG Cooling System Service is backed by the FREE Lifetime BG Protection Plan®. Click here to learn about entry requirements, service intervals, and covered components.

BG CT4 Machine | BG CT4 Coolant Transfusion System