This document specifies a method to determine cloud point using a step-wise cooling technique that is executed by means of automated equipment types with optical detection mode. The method is applicable to distillate fuels@ fatty-acid methyl esters (FAME) and paraffinic diesel fuels@ including blends thereof@ as well as those containing flow-improvers or other additives@ intended for use in diesel engines and domestic heating installations. The method can be applied to other products such as vegetable oils or lubricants@ but these kinds of products have not been evaluated during the interlaboratory study (ILS)@ no precision data are available.