Citibank Credit Cards.
Savings: Petrol.
Citi Credit Cards that give you the best savings on petrol:

Fuel Savings at Esso Petrol Stations
- Save up to 20.88% on petrol at Esso

Fuel Savings at Shell Petrol Stations
- Save up to 20.88% on petrol at Shell

Citi Cash Back Card
- Save up to 20.88% on petrol, and up to 8% cash back on dining and grocery!