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Petrol Prices in Mountain Ash
Average today: unleaded 169.9p · diesel 189.9p ·
UK average 167.7p / 189.2p
Checked 10 September 2026 · retailer-reported prices, changes filed within 30 minutes
Mountain Ash trend: Unleaded ▲ 8.0p · 7d · Diesel ▲ 8.0p · 7d
The cheapest unleaded in Mountain Ash today is 169.9p
at Esso, Cardiff Road.
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