Diesel and the ‘Diesel Bug’
Diesel bug microbes thrive wherever there is food and water. Fuel storage, dispensing and some vehicle fuel systems are therefore dream homes for diesel bug bacteria, yeasts and moulds. The trend towards greener fuels is creating pressure to further reduce sulphur and increase biofuel content. Sulphur kills bugs and biofuels attract additional water, so changing fuel specifications are set to make diesel fuel an increasingly diesel bug friendly environment. Diesel bugs which grow unchecked can block fuel filters, and cause injection problems. They are so corrosive that over time, they can damage the structural integrity of the tank and injectors.
Effects of the Diesel Bug;
• Blocked Filters
• Engine Failure
• Exhaust Emissions
• Corrosion Damage
• Expensive Repairs
• Increased Fuel Consumption
As a solution, Aviation Engineers across 100 airlines have introduced the FUELSTAT® resinae PLUS DIESEL fuel test. The on-site fuel testing kit detects the ‘Diesel Bug’ in just 10 minutes.
The benefits of the test are derived from its ability to provide rapid screening of fuel samples (water in fuel or fuel), giving a quick and accurate assessment of H Res, bacteria & other fungi including yeasts in the fuel tank. It measures the amount of active growth in the sample and provides actions and alert levels. This test is unlike current growth-based tests which require a minimum of 72 hours to provide any results.
The FUELSTAT® resinae PLUS DIESEL test measures the amount of different types of contamination: H Res, bacteria and fungi actively growing in the sample and reports that as the weight of material in the sample. This is a newer, more accurate measurement system than the old Colony Forming Unit (CFU) count.
The test provides results based on a traffic light scenario:
• Negligible (green) – negligible contamination
• Low Positive (amber) – moderate contamination
• High Positive (red) – heavy contamination
Each heat sealed foil test pouch contains a Paddle with desiccant sachet and pipette in one section and Sample Extraction Bottle with flat cap, dropper cap and instructions for use in the other section.
The fast response means engineers no longer have to send fuel tests to the lab for analysis, causing downtime and additional costs, and tests can be taken far more regularly.