As temperatures begin to drop, it’s time to prepare your diesel fuel tank for the harsh conditions of winter. Cold weather can wreak havoc on your fuel and equipment, leading to downtime, costly repairs, or even complete equipment failure.
By carrying out some simple maintenance and taking preventative measures, you can avoid unnecessary headaches when the frost sets in.
How Does Cold Weather Impact Diesel Fuel Tanks?
Gelling
When temperatures fall, the paraffin wax in diesel can thicken and create gel deposits in the fuel that clog fuel lines, filters and injectors. This leads to significant vehicle and equipment downtime that affects business operations and increases costs.
Freezing
Condensation and moisture that accumulate inside fuel tanks and fuel dispensing systems can freeze, resulting in fuel contamination and mechanical breakdowns.
Preparing your fuel tank and equipment for winter will prevent these issues and keep your machinery running smoothly throughout the colder months.
How to Prepare Your Diesel Fuel Tank for Winter
We have compiled a simple, 6-step process to help you protect your fuel tank and equipment from the effects of harsh winter conditions.
1. Add an anti-gelling additive to your diesel
This will help prevent the paraffin wax in the fuel from solidifying as temperatures drop, which can cause the fuel to gel and clog up your system.
It’s a simple step that can save you from dealing with thickened diesel in the cold.
2. Ensure your tank is free from excess water
Moisture can freeze and cause condensation, leading to water contamination in the fuel. Resultant damage to components such as the fuel pump can lead to expensive repairs.
A fuel tank water absorber can be a useful tool to remove water from the diesel and keep it within safe limits.
3. Inspect fuel hoses, seals and couplings
When water freezes and expands inside fuel hoses, previous damage or deterioration can cause the hose to split or leak. Seals and couplings should also be checked, as freezing conditions can expose any damage or deterioration.
Keeping spares on hand can minimise downtime if any part needs a quick replacement.
4. Check fuel filters
Fuel filters play a crucial role in keeping your fuel clean, but they may need replacing more often during the winter, particularly as water in the fuel can freeze and block them.
Having extra filters on-site is always a good idea to prevent any delays in fuel delivery.
5. Examine the condition of your bund
Bunds are vital for containing any leaks, but if they’re not properly maintained, they can fail during the colder months. Most modern fuel tanks are bunded (double-skinned). Make sure the bund is clear and drained of any water that might have accumulated.
Keeping a spill kit nearby will also help in the event of a bund splitting due to damage or deterioration.
6. Consider switching to winter-grade diesel or HVO
These fuels have a lower cold filter plugging point, reducing the risk of gelling, and can keep your equipment running smoothly even in lower temperatures.
How to Prevent Water Freezing in Your Fuel Tank
While water in diesel fuel is a year-round problem, it becomes even more of an issue in winter. Diesel is hygroscopic, meaning that it naturally attracts water molecules. These sink to the bottom of the tank, where it can freeze under particularly cold conditions. It can also lead to the growth of sludge, or “diesel bug,” which can cause machinery malfunctions.
1. Use a Fuel Tank Water Absorber
A fuel tank water absorber can reduce water content levels below the EN590 standard of 200 ppm, offering an effective solution to water contamination. The absorber works by removing emulsified water from the fuel, ensuring it stays within safe limits for your machinery.
2. Regularly Replace Fuel Filters
Once you’ve removed excess water from the fuel, filters become your next line of defence. They trap sludge and prevent it from entering your machinery. Consider using external filters, which are designed to keep water and sludge out of your system. However, a water absorber should still be used in tandem with your filters to fully protect your tank.
Preparing Your Tank Accessories for Winter
· Inspect and Maintain Pumps
Fuel pumps are vital to keeping your operations running smoothly but can be vulnerable in cold weather. Inspect their motors and seals regularly for any signs of wear, as these can deteriorate faster during the winter months.
Keeping a spare pump motor on hand may save you from an expensive and time-consuming replacement when you need it most.
· Check Gauges and Sensors
Cold weather can interfere with the accuracy of your tank’s gauges and sensors. Ensure all monitoring systems are functioning correctly before winter arrives and consider upgrading to a more robust alternative if needed.
· Service Fuel Tank Hoses
Fuel tank hoses are often the first part of a fuel dispensing system to show wear and tear during freezing weather. Inspect them for cracks, and check for any areas of stiffness or brittleness which could indicate that the hose should be replaced to prevent leakages or complete hose failure.
Contact Tanks-UK for Winter-Ready Solutions
Preparing your fuel tank for winter doesn’t have to be a challenge. Whether you need a new or replacement tank, accessories such as pumps, hoses and filters, or simply some expert advice, Tanks-UK is here to help.
We can provide you with everything you need to keep your fuel system running smoothly through the colder months. Don’t wait until the frost sets in—get in touch with Tanks-UK today for reliable products and professional support.