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Petrol Prices in Machynlleth
Average today: unleaded 168.9p · diesel 189.9p ·
UK average 167.9p / 189.4p
Checked 10 September 2026 · retailer-reported prices, changes filed within 30 minutes
Machynlleth trend: Unleaded ▲ 7.0p · 7d · Diesel ▲ 7.5p · 7d
The cheapest unleaded in Machynlleth today is 167.9p
at Mallwyd Service Station, Mallwyd Service Station. Filling a 55-litre tank at the cheapest station instead of the priciest saves about £1.10.
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