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Black plastic cap of aluminum gas tank in silver color with the inscription "DIESEL". The fuel tank of the truck is closed with a cap.

A guide to diesel storage tanks

When choosing how to store diesel safely and efficiently, our diesel storage tanks often come out on top for both residential and commercial settings. Known for their durability, strength, and resistance to external damage, steel diesel tanks offer a reliable solution for fuel storage. Bunded diesel storage tanks are available to comply with regulations.


This in-depth guide will explore the benefits and features of steel diesel storage tanks, allowing you to make an informed decision. It will also highlight plastic diesel storage tanks, and emphasise when they are advantageous. We’ll also showcase practical tips for maintenance to ensure your diesel storage tank extends its lifespan.

Why choose a steel diesel storage tank

The main benefit of a steel diesel tank is its security. Steel tanks provide extra protection against harsher weather conditions, heavy impacts, and even potential theft attempts.

Strength and durability

The steel allows the diesel storage tank to resist damage from knocks caused by heavy machinery or theft attempts. This makes them ideal for farms or industrial sites with high traffic volumes. When properly maintained, steel diesel tanks have a life expectancy of 20+ years.

Security

Steel’s toughness is a deterrent to thieves, as cutting through it is far more challenging and noisy than attempting to break a plastic tank. This resilience makes steel diesel tanks a smart choice for properties in exposed or high-risk areas.

Regulation and environmental compliance

If you require storage over 2500 litres, bunded diesel storage tanks are available. A bunded diesel storage tank basically means there is a protective layer against spills and leaks. There is a tank within a tank, with the inner layer holding the diesel and the outer layer acting as a barrier against leaks and spills.

Why choose a plastic diesel storage tank

While steel diesel tanks offer durability, plastic tanks have their own advantages. Plastic diesel storage tanks are typically cheaper and are easier to transport and install due to their lighter weight. 

Cost effectiveness

They are generally less expensive to manufacture and install than steel diesel tanks, which translates to savings for homeowners and businesses. Despite this, they still offer good durability. This is largely because they are made from UV-stabilised, corrosion-resistant polyethylene. 

Ease of installation

Due to their lightweight properties, plastic tanks are easier to transport, manoeuvre, and install. This is particularly useful in rural areas where access isn’t great or in small areas. Furthermore, their portability makes them a practical choice for temporary setups or situations requiring frequent relocation.

Maintaining diesel storage tanks

A diesel storage tank is built to last long and withstand harsh weather conditions. However, there are specific steps owners should take to extend the tank’s lifespan. 

This includes a regular inspection of the tank, where the user checks for rust or damage every six months. It’s worth inspecting the tank after extreme weather, just in case. Applying an oil-resistant, anti-corrosion coating protects your steel diesel tank as much as possible. It’s always worth monitoring the diesel levels, as running out of diesel can strain the system. Certain oil tank accessories, such as the adjustable oil tank float clock contents gauge, can help you monitor the levels.

It’s also worth scheduling an annual check by a technician to ensure compliance with the regulations. With proper care, your diesel storage tank can exceed its design life, delivering reliable performance.


Diesel storage tanks come in a range of different prices and sizes. The steel diesel tanks range from 5,000 litres to 100,000 litres. Plastic diesel storage tanks range from 1,350 litres to 30,000 litres. If you need any advice on choosing the right diesel storage tank for you, our friendly team is on hand and ready to help. Just get in touch.

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