There a re many diesel additives but Frigid Fix was developed as a special formula to be accepted by fuel fired heaters that can run on diesel fuel. As a brand of Rock Energy Systems, we know the problems caused by the gelling of diesel fuel. We have over 50 years of experience with various types of heaters but until now, there’s never been an additive specially formulated to be used with heaters so they can fire up quickly and run at peak performance in frigid temperatures.

In addition to heaters, Frigid Fix is just as effective using in diesel engines of any kind. This additive is fully manufactured in the USA and is made of the highest quality to ensure your heater or diesel engine starts in cold temperatures without leaving behind the smell of chemicals.