Kilfrost is not an additive. It positively prevents the freezing of pneumatic equipment caused by the formation of ice in an around exhaust ports and valves. It works by absorbing water or condensation in the air and depressing the freezing point of the solution formed, so maintains high extreme pressure properties. Ideal for cold weather tire work & service trucks. Use when the temperature drops below 45°F. Apply directly into air inlet. KilFrost keeps working to -60°F, absorbs moisture, de-ices frozen tools. DO NOT MIX WITH OTHER AIR TOOL LUBRICANTS.