Cheapest petrol near GU18
Cheapest petrol in GU18, Guildford
Updated 28 August 2026. Prices from the official Fuel Finder open data, refreshed twice a day.
The cheapest petrol near GU18 right now is 159.9p at Sainsbury's Watchmoor Park, GU15 3YN. Typical petrol across the 21 forecourts within five miles is 163.9p a litre and diesel 184.9p. The spread here is 4.0p a litre, which is £2.20 on a 55 litre tank, so where you fill up matters.
Cheapest petrol near GU18 today
Cheapest diesel near GU18 today
Every price is the forecourt's own submission to the Fuel Finder scheme, ranked green for the cheapest through to red for the dearest within five miles of the district centre. Enter your full postcode on the home page for the exact forecourts around you, or set a free alert for when the price near you drops.
Common questions about petrol in GU18
How much is petrol in GU18 today?
The typical petrol price within five miles of GU18 is 163.9p a litre as of 10:00 on 28 August 2026, and the cheapest we can see is 159.9p at Sainsbury's Watchmoor Park, GU15 3YN. That is about £90.14 for a 55 litre tank at the typical price.
Where is the cheapest petrol near GU18?
Right now the lowest price near GU18 is 159.9p at Sainsbury's Watchmoor Park, GU15 3YN. Supermarket forecourts are usually close behind. Enter your full postcode in the search for the exact forecourts around you.
How much is diesel in GU18?
Typical diesel within five miles of GU18 is 184.9p a litre, and the cheapest is 179.9p at Sainsbury's Watchmoor Park, GU15 3YN.
How current are these prices?
Forecourts must report a change to the official Fuel Finder scheme within 30 minutes, and this page is rebuilt twice a day. It was last updated at 10:00 on 28 August 2026.