Morris Minor Owners Club

This card is worth applying for. You get 4p per litre unleaded discount from the pump price shown outside Esso Stations, and 1p from Shell. It's fairly easy to set up; you get a card sent in about 7days, and link it to a debit or credit card. There is an app available too. This helps find your nearest Esso or Shell station, and tracks your invoices. Super unleaded gives a discount of 6p a litre. Motorway discounts are bigger, and card can be used with any car.

Hello Shivap (welcome to the forums as this is your first post)

Actually, it's not 4p, it's between 3p and 9p, depending on which fuel and where you're buying it.

There is already a topic posted about this from last month.
viewtopic.php?f=1&t=71257&hilit=esso+card