- 4-in-1 Diesel Fuel Contamination Test Swabs test for:
- Bad Fuel (Fuel Oxidation)
- Water Contamination
- Rust and Scale
- Sludge and Asphaltenes
Find and fix bad Diesel Fuel using the Diesel Mechanic In A Bottle Gasoline Test Kit. This diagnostic tool allows you to test diesel fuel to determine if your fuel is fresh, marginal, or bad and determine the presence and type of contamination that might exist in your fuel tank. This kit allows you to quickly and easily identify the sources of potential equipment problems before damage occurs; saving time and costs for equipment repair.