M4 services fuel prices
Petrol at the 12 M4 services forecourts reporting prices averages 193.1p a litre, 21.8p more than the cheapest forecourt within 5 miles of each. Cheapest: 178.9p at Welcome Break Cardiff. Updated 17:30 on 16 Oct.
Every M4 services forecourt
Cheapest petrol first, with the cheapest forecourt within 5 miles off the motorway.
| Services | Petrol | Diesel | Cheapest within 5 miles | Extra per tank |
|---|---|---|---|---|
| Welcome Break CardiffCardiff Gate services · Cardiff Gate | 178.9p | 203.9p | MFG Morrisons Caerphilly171.9p · 4.5 miles | £3.50 |
| Welcome Break Sarn ParkSarn Park services · Sarn | 178.9p | 203.9p | Sainsburys Bridgend169.9p · 0.3 miles | £4.50 |
| BP Leigh Delamere West Service AreaLeigh Delamere services · Chippenham | 195.9p | 219.9p | Sainsburys Chippenham170.9p · 4.2 miles | £12.50 |
| Welcome Break Membury EastMembury services · Hungerford | 195.9p | 219.9p | Asda Hungerford Express Petrol177.9p · 4.8 miles | £9.00 |
| BP Heston West Service AreaHeston services · Houndslow | 195.9p | 219.9p | Costco Wholesale Sunbury164.9p · 4.6 miles | £15.50 |
| BP Reading West ConnectReading services · Reading | 195.9p | – | Costco Wholesale Reading170.9p · 2.1 miles | £12.50 |
| BP Reading East ConnectReading services · Reading | 195.9p | – | Costco Wholesale Reading170.9p · 2.0 miles | £12.50 |
| Welcome Break Membury WestMembury services · Hungerford | 195.9p | 219.9p | Asda Hungerford Express Petrol177.9p · 4.9 miles | £9.00 |
| BP Leigh Delamere East Service AreaLeigh Delamere services · Chippenham | 195.9p | 219.9p | Sainsburys Chippenham170.9p · 4.3 miles | £12.50 |
| BP Heston East Service AreaHeston services · Houndslow | 195.9p | 219.9p | Costco Wholesale Sunbury164.9p · 4.8 miles | £15.50 |
| BP Chieveley Service AreaChieveley services · Thatcham | 195.9p | 219.9p | – | – |
| BP Swansea Service AreaSwansea services · Swansea | 195.9p | 219.9p | Asda Gorseinon Superstore169.7p · 1.8 miles | £13.10 |
| BP Rontec Cardiff WestCardiff West services · J33 · Nr Pontyclun | – | – | – | – |
| Esso Rontec MagorMagor services · J23 · Caldicot | – | – | – | – |
Distances are straight-line from the services; leaving the motorway adds some driving. Service areas and roads: Wikipedia: List of motorway service areas in the United Kingdom, matched to the government's Fuel Finder data.
M4 services: common questions
Which M4 services has the cheapest petrol?
Welcome Break Cardiff (Cardiff Gate services · Cardiff Gate) at 178.9p a litre. The dearest is BP Swansea Service Area at 195.9p. Prices reported in the last 14 days.
How much more is fuel at M4 services?
On average 21.8p a litre more than the cheapest forecourt within 5 miles of each services, about £10.90 on a 50-litre fill.
How can I pay less for fuel on the M4?
Fill up before you join, or leave at a junction. For example, the cheapest forecourt within 5 miles of BP Heston West Service Area is Costco Wholesale Sunbury, 4.6 miles away, at 164.9p.