Cheapest unleaded
169.9p
Fuel prices in SG6 today, 4 November 2026
Live petrol and diesel prices at 5 stations in the SG6 postcode area, cheapest first, from the government's Fuel Finder open data.
Cheapest diesel
192.9p
Avg unleaded (SG6)
170.7p
Avg diesel (SG6)
197.1p
5 fuel stations in the SG6 postcode area report pump prices to the government's Fuel Finder scheme. Unleaded runs from 169.9p at Sainsbury's up to 173.9p, a 4.0p gap across SG6, so it pays to check before you fill up.
Sainsbury's
Third Avenue, Letchworth
SG6 2HX
Car wash · Air
Unleaded169.9p
Diesel192.9p
BP
Baldock Road, Letchworth Garden City
SG6 2EJ
Price last reported 28 Sept
Car wash · Air · Toilets
Unleaded169.9p
Diesel199.9p
Esso
Letchworth Gate, Letchworth Garden City
SG6 2AZ
Car wash · Air · Water · Toilets
Unleaded169.9p
Diesel199.9p
Essar Oil UK
Icknield Garage, Icknield Way, Letchworth Garden City
SG6 4AD
Price last reported 30 Sept
Unleaded169.9p
Diesel192.9p
Esso
Norton Way North, Letchworth
SG6 1BS
24 hours
Unleaded173.9p
Diesel199.9p
Data updated 1 minutes ago.
Cheapest fuel in SG6: quick answers
Where is the cheapest petrol in SG6?
The cheapest unleaded in the SG6 postcode area right now is 169.9p per litre at Sainsbury's, THIRD AVENUE, LETCHWORTH. The SG6 average is 170.7p.
Where is the cheapest diesel in SG6?
The lowest diesel price in SG6 is currently 192.9p per litre at Sainsbury's, THIRD AVENUE, LETCHWORTH.