Problems with diesel, ULSD, biodiesel, storing fuel, kerosene marine gas oil, petrol, heating oil, stored fuel can be reduced by NBS TULEN fuel biocide additive which effectively eliminates fuel bug, microbial contamination, bacteria, algae and fungi without effecting the fuel quality and these bugs if remain in fuel can create sludge formation repercussion filter plugging, tank pitting which can ruin the vehicle and its performance. NBS TULEN is completely soluble in hydrocarbons and gives trouble free combustion. Shock / Initial Dose for Microbial Contaminated Fuel System Shock Dosage dilution rate: 1:3000 i.e., 30 ml treats 100 litres of all fuel. Maintenance Dose: 1:10000 i.e.