Diesel Mechanic In a Bottle 4-In-1 Test Swabs
Test your diesel fuel for contamination. Simply dip a 4-in-1 test swab in your fuel tank and check the test chart to determine fuel quality and the presence of contamination (water, rust, sludge/asphaltenes).
- Test for bad diesel fuel (fuel oxidation), water contamination, rust and scale, sludge and asphaltenes
- Test to avoid damage and repairs
- Keep contaminated fuel out of equipment
- Fast, easy, inexpensive test