I couple days ago after I fill up at an ESSO gas station, I noticed the receipt state +25% right beside the number of miles I will be getting. I didn't search for it until today and found it is 1 month promo from ESSO:

Fill up on bonus miles

Whether you're on the road for the weekend or the week, now you can earn 25% more bonus miles at Esso™ stations. Simply add an eligible* in‑store item to your fuel purchase in the same transaction and swipe your Aeroplan card in the same minimum payment transaction† to earn bonus miles. A minimum spend of $12 is required.

TERMS & CONDITIONS

Offer available March 13 to April 3, 2017 at participating Esso™ stations. Aeroplan Card must be swiped at the time of purchase to earn miles. To be eligible for the 25% bonus, you must make an in‑store purchase of fuel and an eligible* in‑store item in the same payment transaction or purchase fuel in‑store or at the pump and a car wash in the same payment transaction†. Bonus miles must be issued in full; no half miles will be awarded. Bonus miles will be added to your account within 4 business days and will not appear on receipt at time of purchase.

†Minimum combined purchase of $12 required to earn 25% more Aeroplan Miles.

*Some exclusions apply, including purchases of tobacco, alcohol and Esso Gift Cards.