In this series of articles, Liqui Moly investigates common vehicle problems and proposes a solution. This month it looks at a diesel bug.
Problem: Diesel bug
Solution: Liqui Moly Anti-Bacterial Diesel Additive
Assessment: The old familiar problem when diesel engines are shut down for extended periods: Diesel bug develops in the tank; when the engine is then started, this slime clogs the fuel filter and causes the engine to jerk or stall completely. The problem with diesel bug is not the fuel itself, but the water in it – whether due to poor fuel quality or condensation on the inner walls of the tank. If the vehicle now remains stationary for a longer period of time, the water separates from the diesel fuel and settles at the bottom of the tank because it is heavier. Certain bacteria and fungi can grow at the interface between the water and the diesel fuel floating above it. They multiply more and more until they form a tough slime. When the engine is restarted, the slime is pumped to the engine along with the fuel until it reaches the fuel filter and clogs it.
Once a tank is infested, the Anti-Bacterial Diesel Additive by LIQUI MOLY should be added at a dosage of 1:200. Its active ingredients reliably kill bacteria and fungi so that they can no longer reproduce. However, this is not the end of the matter: although nothing grows now, the remains still form the unwelcome slime. Filter replacement and sometimes even tank cleaning are still necessary. Using the product as a preventative measure will save your customers having to go this trouble and expense.
