Fuel Doctor

We have been manufacturing and selling diesel fuel test kits since 2010. We are a business that focuses on producing simple to use and inexpensive test kits for the detection of fuel quality problems. Our staff have more than 80 years of combined experience with engine and equipment suppliers such as Cummins, Caterpillar, Onan, Detroit Diesel, FG Wilson, Kohler and Komatsu. We know fuel problems back to front, we especially understand how to test fuel for the issues that will cause problems with your diesel engine and fuel system. No matter if you want to test your fuel quality, check for water or detect microbial problems we have a test kit for you. Our products have been used in thousands of applications all over the world – from marine, to construction equipment, to power generators to automotive applications and many other situations.