Best fuel card in Merthyr Tydfil
Which business fuel cards work at Merthyr Tydfil's 3 forecourts, with diesel prices checked at 18:45 on 8 November.
Quick answer
Radius One and UK Fuels work at the most forecourts in Merthyr Tydfil: 2 of 3 each. The cheapest of those for diesel right now is Asda Merthyr Tydfil Superstore at 196.9p.
How we rank. Cards are ranked by how many Merthyr Tydfil forecourts take them, never by commission. PerMile may earn a commission if you apply through these links.
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Radius One
Best for petrol, diesel and electricFixed weekly priceWorks at 2 of 3 forecourts, possibly 1 more
Cheapest diesel where it works: Asda Merthyr Tydfil Superstore, 196.9p
A fixed price linked to the wholesale cost of fuel, set each week for the week ahead.
Apply - 2
UK Fuels
Best for the widest choice, including supermarketsFixed price or pump discountWorks at 2 of 3 forecourts, possibly 1 more
Cheapest diesel where it works: Asda Merthyr Tydfil Superstore, 196.9p
Either a fixed weekly price, or a set discount off the pump price, depending on the card.
Apply - 3
bp plus
Best for bp and motorway servicesPump price with a discountWorks at 1 of 3 forecourts
Cheapest diesel where it works: Rontec Dowlais,
Where each card works comes from each provider's published network, checked in November 2026. Networks change, so check the provider's site finder before you apply. Forecourt prices from the UK Government Fuel Finder scheme. Compare every card in detail · Diesel prices in Merthyr Tydfil
Questions about fuel cards in Merthyr Tydfil
What is the best fuel card in Merthyr Tydfil?
Radius One and UK Fuels work at the most forecourts in Merthyr Tydfil: 2 of 3 each. The cheapest of those for diesel right now is Asda Merthyr Tydfil Superstore at 196.9p.
How do you work out which fuel cards work in Merthyr Tydfil?
We take every forecourt in Merthyr Tydfil from the UK Government Fuel Finder scheme, look at its brand, and check it against where each card provider says its card is accepted. "Works at" means the provider says every site of that brand takes the card. "Possibly" means only some sites of that brand do, or the card's network includes independent sites.
Is a fixed weekly price or a pump price card better?
A fixed weekly price is easy to budget and can be below the average pump price. A pump price card with a discount lets you fill up at the widest choice of stations. If you mostly fill up in one town, pick the card that works at the forecourts you actually use.