Not sure if this is a repost, but as stated in the title you can save 5¢ per litre on first fuel purchase at Esso when you buy $25 car wash gift card.
Heres the link: https://www.essoextra.com/pages/special_offers2.aspx
Heres the link: https://www.essoextra.com/pages/special_offers2.aspx