DriversTalk Radio talks truth about zMAX
August 19, 2019
In a class its own, zMAX is not an additive, but a micro-lubricant that uses the fluids in your vehicle to get to internal parts where it soaks into metal to disperse harmful carbon build-up. Other products change the viscosity of the oil. zMAX doesn't need to do that. It works all on its own. That's why Carroll Shelby used it in his cars!