What is HVO Fuel? A Simple Explanation for Fleet Managers
What is HVO fuel, a guide by Steve Clarke, Marketing Manager, Fleetmaxx Solutions
As a UK fleet manager, the pressure to reduce emissions is relentless. You’re tasked with meeting ambitious sustainability targets and enhancing your company’s green credentials, but the thought of replacing your entire diesel fleet is a daunting and costly prospect. Navigating the world of alternative fuels can be confusing, with concerns about engine compatibility, performance, and the true difference between options like regular biodiesel and the increasingly discussed HVO fuel. What if there was a practical, powerful solution that didn’t require a massive capital investment?
This is where Hydrotreated Vegetable Oil (HVO) enters the conversation. This premium, fossil-free diesel alternative is gaining traction as a simple ‘drop-in’ fuel that can dramatically cut your fleet’s net CO2 emissions by up to 90%. In this guide, we cut through the noise to give you the clear, straightforward information you need. We’ll explore exactly what HVO is, how it stacks up against traditional diesel and biodiesel, and whether it’s the cost-effective solution you need to keep your fleet on the road, for less, while driving towards a greener future.
As a fleet manager, your primary goals are to maximise efficiency and reduce operational costs. HVO fuel, or Hydrotreated Vegetable Oil, is a premium, second-generation biofuel that helps you achieve both. It is a paraffinic diesel made from 100% renewable and sustainable raw materials, such as waste fats, used cooking oils, and vegetable oils.
Crucially for any UK fleet, it is a direct, drop-in replacement for conventional diesel. This means you can start using it immediately in your existing vehicles without any engine modifications, upfront investment, or operational downtime. It’s a practical solution for reducing your carbon footprint without disrupting your business.
A simple analogy is to think of HVO in the same way you think of synthetic engine oil versus conventional mineral oil. While both do the job, the synthetic version is engineered to be purer, more stable, and deliver superior performance. HVO offers the same step-up from standard diesel. Its fossil-free and FAME-free chemical structure results in a cleaner burn, better cold-weather performance, and a significantly longer storage life.
How is HVO Fuel Made?
The key to HVO’s quality lies in its production process. Unlike first-generation biodiesels made through transesterification, HVO is created using a specialised hydrotreatment process. Sustainable feedstocks are treated with hydrogen under high pressure and temperature. This advanced method removes impurities and creates a stable hydrocarbon fuel that is chemically almost identical to high-quality diesel, ensuring consistent and reliable performance for your fleet’s engines.
Is HVO the Same as ‘Renewable Diesel’?
Yes, the terms are often used interchangeably, but HVO is the most common and widely available type of renewable diesel on the market today. It represents a significant advancement in biofuel technology. As a second-generation biofuel, it overcomes the performance and stability issues associated with older biodiesels, making it a trusted and dependable choice for modern commercial fleets looking to reduce emissions and improve fuel efficiency.
HVO vs. Standard Diesel vs. Biodiesel: A Clear Comparison
Navigating the world of alternative fuels can be confusing, especially with terms like ‘biodiesel’ and ‘HVO’ often used interchangeably. However, they are fundamentally different products with distinct impacts on your fleet’s performance, reliability, and running costs. Understanding these differences is crucial for making a smart investment in your business’s future.
To cut through the noise, here is a straightforward comparison of the three main fuel types available to UK fleet operators today.
To cut through the noise, here is a straightforward comparison of the three main fuel types available to UK fleet operators today.
| Feature | HVO Fuel | Standard Diesel (EN 590) | Biodiesel (FAME EN 14214) |
|---|---|---|---|
| Emissions | Up to 90% reduction in net CO2. Lower NOx & Particulate Matter. | Standard fossil fuel emissions. | Moderate CO2 reduction, but can increase NOx emissions. |
| Performance | Higher cetane number for a cleaner, more efficient burn. Excellent cold weather performance. | Reliable and consistent performance. Prone to waxing in cold. | Lower energy content. Can cause filter plugging and poor cold start. |
| Storage | Excellent stability. Up to 10-year shelf life. Resists microbial growth (‘diesel bug’). | 6-12 month shelf life. Susceptible to water contamination and microbial growth. | Poor stability. Absorbs water (hygroscopic), leading to rapid degradation. |
| Compatibility | A ‘drop-in’ replacement. Approved by a wide range of major engine manufacturers. | Universally compatible with all diesel engines. | Limited OEM approval, especially at higher blends. Can damage seals and hoses. |
HVO vs. Conventional Diesel (EN 590)
While standard diesel is the familiar workhorse, HVO offers significant operational upgrades. Its higher cetane number ensures a cleaner, more complete combustion, leading to improved engine performance and reduced DPF regeneration cycles. For fleet managers, HVO’s stability is a game-changer; with a shelf life of up to 10 years and resistance to the ‘diesel bug,’ it reduces the risks and costs associated with long-term fuel storage. Its superior cold-weather performance also prevents waxing, keeping your fleet moving during the coldest UK winters.
HVO vs. Biodiesel (FAME – EN 14214)
The most common point of confusion is between HVO and first-generation biodiesel, or FAME (Fatty Acid Methyl Ester). FAME is prone to absorbing water from the atmosphere, which leads to microbial growth, blocked filters, and fuel system damage. In contrast, hvo fuel is entirely FAME-free and hydrotreated, making it a stable and reliable paraffinic diesel. This chemical purity means it is approved by a far greater number of engine manufacturers as a direct drop-in fuel, safeguarding your vehicle warranties and providing peace of mind for your entire fleet.
The Business Case for HVO: Real-World Benefits for Your Fleet
For a fleet manager, any change must be measured against three core principles: cost, reliability, and reputation. While HVO’s green credentials are impressive, its real value lies in the tangible operational and financial advantages it delivers. Moving to HVO is not just an environmental decision; it’s a strategic business move that can improve your bottom line, boost fleet efficiency, and enhance your company’s standing.
By switching to this advanced renewable diesel, you can immediately address key challenges, from meeting stringent emissions targets to reducing long-term maintenance expenditure. Let’s explore the practical benefits that make hvo fuel a compelling solution for the modern fleet.
Slash Your Fleet’s Carbon Footprint Instantly
Meeting your company’s Environmental, Social, and Governance (ESG) goals becomes significantly simpler with HVO. As a drop-in replacement for diesel, it allows you to make an immediate and dramatic impact on your emissions profile without any vehicle modifications. This is crucial for winning tenders and operating in restricted areas.
- Up to 90% CO2 Reduction: Drastically cut your net ‘well-to-wheel’ greenhouse gas emissions, demonstrating a serious commitment to sustainability.
- Cleaner Air: Reduce harmful tailpipe emissions, including Nitrogen Oxides (NOx) by up to 30% and Particulate Matter (PM) by up to 85%.
- LEZ Compliance: The significant reduction in particulates and NOx helps ensure your vehicles meet the standards for Low Emission Zones (LEZs) across the UK, avoiding costly penalties.
Improve Engine Performance and Reduce Maintenance
The purity of HVO fuel translates directly into better-running vehicles and lower maintenance overheads. Its clean-burning properties mean less work for your engines and their emissions systems, reducing costly downtime and keeping your vehicles on the road for less.
- Reduced Soot Buildup: HVO’s composition minimises soot, leading to fewer forced regenerations and potential blockages in Diesel Particulate Filters (DPFs).
- Smoother Operation: A higher cetane number (over 70, compared to around 51 for standard diesel) ensures a more efficient and complete combustion, resulting in a quieter, smoother engine.
De-risk Your Fuelling Strategy
HVO offers superior stability and reliability, safeguarding your operations against common fuel-related issues. This makes it a smart choice for future-proofing your diesel fleet and ensuring maximum uptime, whatever the conditions.
- Excellent Storage Life: With a shelf life of up to 10 years, HVO resists the diesel “bug” and water contamination, eliminating the cost of spoiled fuel in on-site tanks.
- Superior Cold Weather Performance: HVO remains operational in temperatures as low as -22°C, preventing fuel gelling and ensuring your fleet remains reliable throughout the harshest UK winters.
Making the Switch: HVO Cost, Availability, and Compatibility
For any fleet manager, the practical questions are what matter most. While the environmental benefits are clear, what does switching to HVO fuel actually mean for your budget, supply chain, and existing vehicles? Here’s a pragmatic look at what you need to know. The transition is often simpler than you might think, and crucially, it requires no upfront capital expenditure on new vehicles.
Analysing the Cost of HVO Fuel
Let’s be direct: the per-litre price of HVO is often higher than traditional white diesel. However, focusing solely on the pump price misses the bigger picture of Total Cost of Ownership (TCO). Because HVO burns much cleaner, it significantly reduces soot in engines and exhaust systems. This can lead to fewer forced DPF regenerations, less component wear, and reduced vehicle downtime—all of which translate to direct maintenance savings. Furthermore, the marketing value of running a greener fleet is a powerful asset, helping you win contracts with clients who have their own sustainability targets. As production scales up, prices are also becoming increasingly competitive.
HVO Availability and Sourcing in the UK
The myth that HVO is hard to find is quickly becoming outdated. The network of suppliers across the UK is expanding rapidly to meet growing demand. For most fleets, sourcing HVO is straightforward. It can be delivered in bulk directly to your on-site fuel bunkers, allowing for a seamless transition with your existing storage. Alternatively, HVO is increasingly available through specialised fuel card networks, giving your drivers flexibility on the road. As your trusted partner, we can help you find the right solution. Ask us about fuel cards that support HVO purchases.
Vehicle and Engine Compatibility
One of the greatest operational advantages of HVO is that it’s a direct, drop-in replacement for diesel. It meets the rigorous EN 15940 standard for paraffinic diesel fuels and has been approved for use by a wide range of major vehicle and engine manufacturers. Most leading HGV and LCV brands have given the green light for using HVO fuel in their modern diesel engines, including:
- Scania
- Volvo
- Mercedes-Benz
- DAF
- Renault
- MAN
- Ford (for their Transit range)
For these approved vehicles, no engine modifications or new equipment are necessary. You can simply start refuelling. However, to protect your warranty, we always advise confirming compatibility with your specific vehicle manufacturer or leasing provider before making the switch.
How Fleetmaxx Makes Your Transition to HVO Simple
Adopting a new fuel can feel like a significant operational challenge, but it doesn’t have to be. At Fleetmaxx Solutions, we act as your trusted partner, integrating HVO into your operations seamlessly. Our goal is to remove the administrative burden so you can focus on the benefits: lower emissions, improved performance, and a stronger green credential for your business.
We leverage our existing, market-leading services to make your switch to hvo fuel straightforward and cost-effective, ensuring you’re keeping your vehicles on the road, for less.
Using Fuel Cards to Manage HVO Purchases
Simplify your fuel expenditure with a single, streamlined solution. Many of our fuel cards, including those on the Keyfuels and UK Fuels networks, are accepted at a growing number of HVO-supplying stations across the UK. This means you can manage a mixed fleet of diesel and HVO vehicles with ease.
- Consolidated Invoicing: Receive one simple, HMRC-compliant invoice for all your fuel purchases, whether it’s HVO or traditional diesel. This drastically cuts down on administrative time.
- Total Control: Set specific purchasing restrictions on each card to manage which drivers can access which fuel types, giving you complete oversight of your fleet’s transition.
Tracking Performance with Telematics
How can you be sure HVO is delivering for your fleet? The answer is in the data. Our state-of-the-art telematics and vehicle tracking systems allow you to monitor your fleet’s performance with precision. By tracking fuel consumption, mileage, and MPG, you can directly compare the efficiency of HVO against diesel in your own real-world operations. This data provides a clear, undeniable business case for making the switch and proves the return on your investment.
Your Partner in Fleet Sustainability
Fleetmaxx Solutions offers more than just fuel cards; we provide a complete roadmap for your fleet’s decarbonisation journey. From managing your initial HVO trials to planning a fully sustainable fleet, our experts are here to help. Our comprehensive services also include EV charging solutions, ensuring that as your business evolves, you have a single partner to meet all your needs.
Ready to explore how HVO can reduce your costs and carbon footprint? Contact our friendly team today for a tailored consultation on your fleet’s future.
Embrace the Future: Make HVO Your Fleet’s Competitive Advantage
As we’ve explored, hvo fuel is more than just an alternative; it’s a powerful and practical tool for UK fleet managers. It provides a direct path to reducing your carbon footprint by up to 90% without the need for expensive vehicle modifications or operational downtime. For any business focused on achieving sustainability goals while maintaining peak efficiency, HVO represents a straightforward, high-impact solution that is available today.
Making the transition to a greener fleet doesn’t have to be complex or costly. As your trusted fleet partner, Fleetmaxx Solutions is here to simplify the process. We provide expert advice on reducing your fleet’s total running costs and offer access to a growing network of HVO-compatible fuel cards. Our comprehensive solutions cover everything from fuel and EV charging to vehicle tracking and AdBlue, ensuring we can support every aspect of your operation.
Ready to see how HVO can benefit your bottom line and boost your green credentials? Talk to our experts about integrating HVO into your fleet strategy. Let us help you keep your vehicles on the road, for less, while driving towards a more sustainable future.
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HVO Fuel: Frequently Asked Questions
Can you mix HVO fuel with regular diesel?
Yes, absolutely. HVO is a fully miscible, ‘drop-in’ fuel, meaning it can be mixed with conventional diesel in any ratio without any negative effects on your engine. This provides excellent flexibility for businesses transitioning their fleet or operating in areas where HVO availability may vary. You can top up with either fuel as needed, ensuring your vehicles stay on the road without interruption and with maximum operational efficiency.
Does using HVO fuel affect my vehicle’s warranty?
Most major vehicle and engine manufacturers (OEMs), including brands like Scania, Volvo, and Mercedes-Benz, have approved HVO for use in their modern diesel engines. However, it is always the best practice to consult your vehicle’s handbook or contact the manufacturer directly to confirm approval. This simple step ensures you remain fully compliant with your warranty terms, giving you complete peace of mind and protecting your valuable business assets.
Is HVO fuel truly sustainable and ethical?
Yes, it is. Reputable HVO is produced from 100% renewable and sustainable raw materials, such as certified waste fats and used cooking oils. These sources are verified by schemes like the International Sustainability and Carbon Certification (ISCC) to ensure they do not contribute to deforestation or compete with the global food chain. This makes it a genuinely ethical and sustainable solution for reducing your fleet’s net CO2 emissions by up to 90%.
What is the shelf life of HVO fuel compared to diesel?
HVO fuel offers a significant operational advantage with a shelf life of up to 10 years, a stark contrast to the 1-year lifespan of standard diesel. This is because HVO is free from the unstable components (like FAME and sulphur) that cause degradation and microbial growth (‘diesel bug’). This exceptional stability reduces the risk of fuel spoilage and filter blockages, cutting maintenance costs and ensuring your stored fuel remains in prime condition.
Is HVO fuel legal to use in all diesel vehicles in the UK?
Yes, HVO that meets the EN 15940 standard is a 100% legal road fuel in the UK and can be used as a direct replacement for standard EN 590 diesel. It is approved for both on-road and off-road (red diesel replacement) applications. While it is legal for use, we always recommend checking for your specific vehicle manufacturer’s approval to ensure continued warranty coverage and optimal engine performance for your fleet.
Do I need to clean my fuel tank before switching to HVO?
While not strictly required, we highly recommend cleaning your fuel tank before making the switch. This advanced hvo fuel has a solvent effect that can loosen and dislodge existing sludge and deposits left by regular diesel, potentially leading to clogged fuel filters. Starting with a clean tank is a pragmatic step that prevents initial maintenance issues, ensuring a seamless transition and allowing your fleet to immediately benefit from improved efficiency and performance.
