Making the switch to HVO (Hydrotreated Vegetable Oil) has never been simpler or more worthwhile for businesses running fuel-hungry fleets. With clear environmental benefits and an easy drop-in process requiring no engine modifications, HVO is a practical step for any commercial operation focused on sustainability.
In this step-by-step guide, we’ll walk you through exactly how to make the transition with minimum fuss and maximum gain, showing how Fuelmii’s mobile refuelling service, offering waste-derived HVO, takes the hassle out of the process.
Why Switch to HVO?
If you’re working to reduce emissions and future-proof your fleet, HVO is a proven alternative to diesel. Produced from waste fats, oils, and other renewable materials, HVO slashes greenhouse gas emissions by up to 90% compared to standard diesel. It’s a “drop-in” fuel meaning you can use it in your current diesel engines and storage tanks, with no costly upgrades or downtime. The result? Lower emissions, improved air quality, and a step closer to your Net Zero goals.
Step 1: Assess Your Fleet and Storage
- First things first: take stock. Review which vehicles and fuel tanks currently use diesel. HVO seamlessly replaces standard diesel in most commercial engines no modifications required but it’s wise to check compatibility with your manufacturer, especially if your fleet includes older or specialist vehicles.
- Check your onsite fuel storage. Since HVO isn’t usually available at forecourts, depot-based fleets with bulk storage stand to benefit most. If you’re not set up for bulk delivery, a mobile refuelling solution like Fuelmii’s HVO service brings the fuel to you, topping up your vehicles directly or filling your storage tanks overnight.

Step 2: Choose a Reliable Supplier
- With demand for HVO rising, not all suppliers are created equal. Look for providers offering certified, waste-derived HVO that meets the Renewable Fuels Assurance Scheme (RFAS) standards a guarantee of origin, sustainability, and supply chain transparency.
- Fuelmii’s HVO is sourced responsibly, with full certification and digital records for every litre delivered. Their mobile refuelling service means you don’t need to worry about logistics: your vehicles are topped up when parked, and comprehensive usage data is just a click away.
Step 3: Preparation
- To get the best from HVO, it pays to start fresh. Ideally, run down existing diesel stocks first. If tanks are old or haven’t been cleaned in a while, arrange a professional tank clean.
- This step helps avoid any residue or bacteria lurking in older diesel, ensuring your first fill of HVO is contamination-free. Some fleets choose to flush tanks, though for most, a simple refill suffices thanks to HVO’s stability and cleanliness.
Step 4: Fill Up with HVO: No Modifications Needed
- Here’s where the magic happens: simply refill your tanks or vehicles with HVO. No need for costly parts or downtime just swap out diesel, fill up with HVO, and you’re ready to go.
- With Fuelmii’s mobile refuelling, this process is seamless; a trained team comes to your depot, fills each vehicle while parked, and provides instant digital confirmation. Your drivers turn up to a full tank and hit the road, no detours or lost time.
Step 5: Monitor, Optimise, and Report
- After the switch, keep an eye on performance and emissions data. HVO offers the same or better performance as diesel, but with far lower CO₂ and NOₓ output. With digital records from suppliers like Fuelmii, tracking fuel usage and carbon reductions becomes effortless perfect for your reporting and compliance needs.
Many organisations report significant operational and environmental gains almost immediately after switching, reduced downtime, happier drivers, and measurable sustainability progress.
Ready to Lead the Way?
Making the switch to HVO is a straightforward, affordable step towards net zero. With no need for engine changes, reliable suppliers on hand, and innovative mobile refuelling options from companies like Fuelmii, there’s never been a better time for commercial fleets to make the change.
If cutting emissions and improving efficiency matters to your business, now’s the time to fuel the change, literally. Fuelmii’s HVO delivery service is ready to get you started.
Stop letting refuelling drain your resources. Bring the pump to you, and watch the savings add up.