How much can I save on fuel by exiting at M4 Junction 18?

Drivers typically save approx £10.45 on a standard 55L fill-up by taking the slip road at Junction 18 and driving 1.1 miles to local forecourts (170.9p) instead of paying typical motorway service area prices (~189.9p/L).

Where is the closest petrol station to M4 Junction 18?

The closest forecourts are located within 1.1 miles off the junction roundabout, providing rapid refuelling without long detours.

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Junction 17

Chippenham, Malmesbury, Cirencester

Bristol City Centre, Frenchay (M32)

Exit & Save Calculator

Save ~£10.45 at M4 Junction 18

Motorway service station pumps charge ~189.9p/L. Exit at Junction 18 (Bath / Leigh Delamere Services / Stroud / A46) and drive just 1.1 miles off the slip road to refuel from 170.9p (saving 19.0p per litre).

Forecourts Near M4 Junction 18 (Bath, Stroud, Yate, Leigh Delamere Services)

Forecourt	Unleaded	Diesel	Off Slip Road
ESSO - COTSWOLD SERVICE STATION COTSWOLD SERVICE STATION	170.9p	197.9p	1.1 mi
HARVEST - EG ROMAN CAMP PFS OLD SODBURY	175.9p	199.9p	0.9 mi
ESSO - RONTEC PRECINCT LINK ROAD	175.9p	199.9p	3.3 mi

All M4 Junction Exits (26 Exits)

Jct 3 Jct 4 Jct 5 Jct 6 Jct 10 Jct 11 Jct 12 Jct 13 Jct 14 Jct 15 Jct 16 Jct 17 Jct 18 Jct 19 Jct 20 Jct 22 Jct 23a Jct 28 Jct 30 Jct 32 Jct 33 Jct 36 Jct 42 Jct 47 Jct 49 Jct 8-9