Cost-in-use guide: figures are indicative and depend on actual chemical consumption, application equipment, vehicle condition and operator technique. Wheel cleaner figures are calculated per wheel and multiplied by the selected vehicle wheel count. TFR pressure-sprayer starting usage is derived from the supplied Autoglym vehicle-use matrix where data exists and converted to concentrate ml at the selected dilution. Max body dilution is used as the starting point for TFR products, including 60:1 for Super Strength products. Pack prices are stored directly in this calculator as ex-VAT values and can be edited manually whenever pricing changes.