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Petrol Prices in Harpenden
Average today: unleaded 166.4p · diesel 185.4p ·
UK average 161.4p / 182.6p
Checked 23 August 2026 · retailer-reported prices, changes filed within 30 minutes
Harpenden trend: Unleaded ▼ 1.0p · 7d · Diesel → steady · 7d
The cheapest unleaded in Harpenden today is 165.9p
at Esso, Tes103 -105 Lower Luton Rd. Filling a 55-litre tank at the cheapest station instead of the priciest saves about £0.55.
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