If you’re new to buying a used van, you might have various questions you need to answer before making a choice. Whether it’s for your business in Slough or private use, one of the biggest questions is: petrol or diesel?

Both options come with pros and cons, and the best option really depends on how you plan to use the van. 

At Huntswood Van Centre in Horton, Berkshire, we help buyers every day weigh up these choices. Here’s our straightforward guide to help you pick the right fuel type for your next used van.

1. First, Know Your Usage

Before diving into engine types, get clear on how they’re used in the real world:

• Will you mostly be driving short distances or longer journeys on motorways?
• Is your van for everyday commutes, occasional jobs, or regular hauling?
• Will you be driving in ULEZ zones like London?
• How many miles do you expect to clock per year?

Your answers will help direct you as to which engine is more suitable.

2. Petrol Vans: Who Are They For?

The Advantages of Petrol Vans

Firstly, they’re cheaper upfront. Petrol vans are typically cheaper to buy second-hand than their diesel counterparts. If you’re on a tighter budget or just getting started, this matters.

Secondly, they tend to cost less to maintain. Petrol engines tend to have simpler systems (no DPFs or AdBlue), so that can mean fewer costly repairs down the line.

They’re also better for short journeys: If you’re mainly using your van around town, for local deliveries or school runs, a petrol van is ideal. Diesel engines don’t like short trips (more on that later!). 

Drawbacks of Petrol

When it comes to the cost of fuel, petrol vans are less efficient on longer journeys, particularly if you’re carrying heavy loads.

If you’re towing or hauling, a petrol van might feel underpowered compared to a diesel.

They also tend to have a lower resale value. Because diesel vans are often in higher demand, petrol ones can depreciate faster.

3. Diesel Vans: Where They Shine

Benefits of Diesel

When it comes to fuel efficiency, diesel engines go further per tank, especially on the motorway. If you’re driving 12,000+ miles a year, you’ll likely save money in the long run if you choose diesel.

Diesel vans also offer better pulling power. If you’re lugging equipment, materials, or towing a trailer, diesel is the better tool for the job.

Then there’s the matter of longevity. Properly maintained diesel engines can last for hundreds of thousands of miles, making them a great option for high-mileage drivers.

Downsides to Diesel Vehicles

Firstly, there can be higher upfront and maintenance costs. Used diesel vans can cost more, and maintenance bills are often steeper due to complex parts like diesel particulate filters (DPFs).

Secondly, they’re not generally city-friendly. Many cities, including London, charge ULEZ fees for older diesel vehicles. If your van isn’t Euro 6 compliant, you’ll pay to enter these areas.

Last but not least, there’s those pesky DPF issues. Diesel particulate filters need long, hot drives to regenerate. Frequent short trips can clog them, leading to expensive repairs.

4. City Driving vs Motorway Mileage

If your van’s main role is in and around Slough, Windsor, or even into West London, a petrol van could be your best bet – lower purchase price, easier to maintain, and less affected by low-mileage use.

But if you’re clocking serious miles between towns, hitting the M4 or M25 regularly, diesel pays off in the long run – especially if you’re carrying tools or towing gear.

5. Emissions, ULEZ and Clean Air Zones

ULEZ (Ultra Low Emission Zone) compliance is a growing concern. If you’re working in London, your van must meet Euro 6 standards (for diesels) to avoid daily charges.

Petrol vans are typically ULEZ-compliant if they’re Euro 4 or newer (most are). Diesel vans must be Euro 6 to comply – anything older faces a £12.50 daily charge.

If you’re buying a used diesel van, check its emissions rating carefully.

6. What About Electric Vans?

Yes, electric vans are gaining traction, especially for driving in cities like London. But in the used market, they’re still pricier and have more limited range and availability. Petrol and diesel remain the most accessible and practical options for many buyers in 2025.

Browse Our Used Vans for Sale Near Slough

At Huntswood Van Centre, we stock a range of quality used vans for sale in Slough, including both petrol and diesel models. We’re here to help you make the right call for your budget and your needs. If you need help finding the right vehicle for your requirements, we’re happy to make recommendations.

Visit us in Horton, Berkshire, just a short drive from Slough, or browse our current stock online. If you’re unsure which way to go, our team is happy to talk you through it – no pressure, no jargon.