Preventing Diesel Bug: Why Prevention Is Better Than Reactive Treatment
When it comes to preventing diesel bug, taking action before contamination becomes established is far easier than dealing with blocked filters, sludge and contaminated fuel afterwards.
Diesel bug develops when microorganisms such as bacteria, yeasts and fungi find the conditions they need to grow within a diesel fuel system, with water being one of the most important factors.
So what can you do to prevent diesel bug, and what happens if you’ve already got it?
Preventative Measures For Diesel Bug
Good fuel management starts long before there’s an obvious problem.
Keep An Eye On Water
Water can enter a fuel tank through contaminated fuel, tank breathing and condensation caused by changing temperatures.
Regularly checking for water and draining it where possible helps remove one of the key conditions microbial contamination needs to develop.
This is particularly important for boats, generators and machinery where diesel can remain stored for weeks or months.
Keep Your Fuel Tank And System Clean
Sediment, sludge and old deposits shouldn’t simply be ignored.
Regular tank inspections, appropriate cleaning and maintaining filters can help prevent contaminants accumulating and make it easier to spot changes before they become a bigger problem.
Be Careful Where You Buy Your Diesel
Where possible, use reputable, high-turnover fuel suppliers.
Fuel quality and storage conditions can vary, so it’s worth paying attention to where your fuel has come from, particularly if you’re bunkering or refuelling in different locations.
Don’t Forget About Stored Diesel
Equipment that isn’t being used can sometimes be at greater risk of fuel-related problems.
During periods of inactivity, temperature changes can encourage condensation while diesel remains relatively undisturbed in the tank.
If you’re laying up a boat for winter or storing diesel for an extended period, fuel management should be part of your preparation.
Use V25 As A Preventative Fuel Treatment
Rather than waiting until diesel bug becomes established, Aderco V25 Fuel Conditioner & Lubricity Improver is designed for continuous preventative use.
V25 is not a conventional biocide and doesn’t rely on chemically attacking microorganisms.
Instead, it physically conditions the fuel, helping separate water and disperse contaminants and deposits. By managing the fuel/water environment, V25 helps create conditions in which microorganisms lose access to the fuel they need to remain active.
Alongside helping manage the conditions associated with diesel bug, V25 supports fuel stability, lubricity, injector cleanliness and cleaner, more complete combustion.
The standard preventative dosage is 1 litre per 10,000 litres of diesel, making ongoing treatment simple even for relatively large fuel tanks.
What If You Already Have Diesel Bug?
This is where reactive treatment becomes necessary.
Signs that could indicate an existing fuel contamination problem include unusually frequent blocked filters, sludge in the tank, water, hazy or discoloured fuel and unexpected fuel-system problems.
If you suspect significant microbial contamination, don’t simply keep adding treatment and hope it disappears. The extent of the contamination should be established first.
Test Your Fuel
If you suspect diesel bug, taking a representative fuel sample and testing for microbial contamination can help establish whether a problem is present and how significant it may be.
Remove Water And Contamination
Accumulated water should be drained from the fuel system where possible. Depending on the severity of the problem, sludge and other contamination may also need to be physically removed from the tank.
Check And Replace Your Filters
Microbial contamination and sludge can quickly affect fuel filters. Inspecting and replacing contaminated filters may be necessary as part of getting the fuel system back into good condition.
Consider Fuel Polishing
For more significant contamination, external filtration or fuel polishing may be required to remove water, sludge and suspended contaminants from the fuel.
Severe contamination can require considerably more intervention than simply preventing the conditions from developing in the first place.
What About Diesel Bug Biocides?
Biocides are commonly used as a reactive treatment because they’re designed to kill microorganisms within contaminated fuel.
They can be effective for this purpose, but killing the microorganisms doesn’t automatically remove the resulting biomass, sludge, water and contamination from the fuel system.
Depending on the product, biocides can also introduce additional considerations around handling, storage and disposal.
Reactive Treatment Vs Preventative Fuel Management
This is one of the key differences between reactive diesel bug treatment and preventative fuel management.
Rather than repeatedly waiting for contamination to develop and then treating it, preventative management focuses on making the fuel system a less favourable environment for problems in the first place.
Prevention Vs Reaction
Once diesel bug becomes severe, you could be dealing with contaminated tanks, blocked filters, sludge, fuel polishing and potentially significant cleaning work.
Prevention Is Much Simpler
Regularly monitor your fuel, remove water, maintain your filters, keep tanks in good condition and consider continuous preventative treatment with V25.
Don’t wait for diesel bug to tell you there’s a problem. Look after your fuel before it gets that far.
Premier Fuel Solutions supplies Aderco V25 in sizes ranging from 100ml bottles for smaller diesel tanks through to larger quantities for commercial vessels and fuel storage applications.
Make preventative fuel management part of your routine and help protect your diesel from tank to engine. Get in touch today.