Allstar vs Keyfuels vs UK Fuels: Which Fuel Card is Right for Your Fleet?

Allstar, Keyfuels, and UK Fuels are three of the most widely used fleet fuel cards in the UK — but they're built for different kinds of fleets. The right choice depends on where your vehicles fuel, what they drive, and how you price. Here's an honest comparison to help you decide.

Allstar vs Keyfuels vs UK Fuels at a Glance

• Allstar — the widest network (around 7,700 sites, ~90% of UK forecourts) plus 59,000+ EV charge points. Best for mixed car-and-van fleets that value near-universal acceptance and are adding EVs.
• Keyfuels — 3,500+ multi-branded sites and truckstops, 900+ HGV-friendly, with fixed weekly diesel pricing. Best for HGV operators and hauliers buying diesel in volume.
• UK Fuels — 4,600+ sites across 98% of postcodes, including major supermarket forecourts, part of Radius. Best for fleets wanting broad coverage with flexible card options (fuelplus, Truckone).

Network Coverage

Coverage is the first thing most fleets weigh. Allstar leads on raw acceptance — roughly 90% of UK fuel stations, so drivers rarely have to plan around where their card works. UK Fuels covers 98% of postcode areas across 4,600+ sites, heavy on supermarket forecourts (Tesco, Morrisons, Sainsbury's, Asda) and Texaco. Keyfuels has fewer sites (3,500+) but concentrates them where HGVs actually go — truckstops and motorway routes — with 900+ HGV-suitable locations.

Pricing Models

This is where the cards differ most. Keyfuels is known for fixed weekly pricing — one national price per week regardless of pump price, which hauliers buying large volumes tend to prefer for predictability. Allstar and UK Fuels more often use pump-price or account-based pricing with the convenience of a huge network. Neither model is universally cheaper; the right one depends on your volume and how much you value price certainty over network reach.

Vehicle and Fleet Fit

• Vans and cars, mixed fleet: Allstar or UK Fuels — broad acceptance and supermarket coverage suit vehicles fuelling wherever they happen to be.
• HGVs and heavy diesel users: Keyfuels — truckstop network and fixed pricing are built for volume diesel.
• Adding EVs: Allstar — its Chargepass network folds EV charging into the same card.
• International routes: none of these three is ideal — look at BP+Aral, DKV, or Esso for European coverage.

The Factor Most Comparisons Miss: Auditability

Choosing a card is only half the decision. Whichever you pick, a fuel card statement tells you what was bought — not whether it was legitimate. Fleets lose 2–5% of annual fuel spend to fraud and misuse regardless of which card they carry, and the card provider's own portal won't catch a fill 30 miles off route or litres that exceed a vehicle's tank. The card gives you convenience and pricing; getting control of the spend is a separate job.

Get Control of Any Fuel Card with Fleevo

Fleevo works with Allstar, Keyfuels, UK Fuels, and 40+ other cards — so your choice of card doesn't lock you into its limitations. Fleevo automatically collects your transactions and checks every purchase against vehicle location, tank capacity, fuel level, and fuel type, flagging anything that doesn't reconcile. Run more than one card, or plan to switch? Fleevo audits them all in one view, so changing provider never fragments your fuel data. It's a continuous fuel audit on top of whatever card you choose.

Fuel Card Comparison FAQs

Which fuel card has the biggest UK network?

Allstar has the widest acceptance — around 7,700 sites, roughly 90% of UK fuel stations. UK Fuels covers 98% of postcode areas across 4,600+ sites; Keyfuels has 3,500+ sites focused on HGV routes.

Which fuel card is best for HGVs?

Keyfuels is the common choice for heavy diesel users — 900+ HGV-suitable sites and fixed weekly pricing suit volume buyers. Many hauliers also add a card with broader coverage for flexibility.

Can I use more than one fuel card?

Yes, and many fleets do — for example Keyfuels for HGVs and Allstar or UK Fuels for vans. The challenge is seeing total fuel spend across providers; a platform like Fleevo consolidates every card into one audited view.

Does the fuel card I choose affect fuel fraud risk?

Not materially — fraud and misuse affect all cards similarly, because the risk comes from how cards are used, not which brand they are. What reduces it is transaction-level auditing against vehicle data, independent of the card.

Bottom line: match the card to your fleet — Allstar for coverage and EVs, Keyfuels for HGV diesel volume, UK Fuels for broad flexible acceptance — then put an independent audit on top so you control the spend whichever you choose.

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