Overview Fuel Prices Analysis Amenities & Hours Location Trends FAQ
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St Mellons Service Station Rumney

VERIFIED Open 24 Hours

ST. MELLONS SERVICE STATION, NEWPORT ROAD, OLD ST. MELLONS, CARDIFF, CF3 5UG, CARDIFF, Wales, CF3 5UG

Data Source: Fuel Finder Scheme 3 minutes ago
Petrol (E10)
132.9p
0.1p above UK avg (132.8p)
Last updated 25/02/26
Premium Petrol (E5)
149.9p
0.7p below UK avg (150.6p)
Last updated 25/02/26
Diesel (B7)
138.9p
3.9p below UK avg (142.8p)
Last updated 25/02/26

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Opening Times
Monday 24 Hours
Tuesday 24 Hours
Wednesday 24 Hours
Thursday 24 Hours
Friday 24 Hours
Saturday TODAY 24 Hours
Sunday 24 Hours
Station Amenities
AdBlue (Packaged) Car Wash
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Common Questions about this Station

Based on today's prices, filling an average family car (55 litres) costs approximately:
  • Petrol: £73.10
  • Diesel: £76.40

Yes. This station stocks:
  • Super Unleaded (E5): 149.9p
  • Unleaded (E10): 132.9p
  • Diesel (B7): 138.9p

Prices at this station have risen by 1.0p since 13 Feb. We monitor prices every 30 minutes to track these changes.

As a premium retailer, St Mellons Service Station typically includes proprietary additives (like Synergy, V-Power, or Techron) designed to clean your engine and improve efficiency.