Chemiphase manufacture the latest developments in fuel additives that work. Chemiphase manufacture diesel additives & biodiesel additives which include cold flow improvers for biodiesel and diesel/biodiesel cold flow improvers, biodiesel cetane improvers, biodiesel antioxidants for storage and even pH correction additives for biodiesel. Chemiphase also manufactures a diesel biocide to control bacteria in diesel. We also supply the raw materials for making your own biodiesel. Whether you are a producer or user we can help you improve the quality of your biodiesel. Please click on our range of fuel additives below.