I used Axis IOCL and IDFC power plus till now. But I have recently changed to indusind delight deibt card for fuel. It gives only 5% as rewards, but advantages are no surcharge, can be used at any fuel outlet. Also the rewards can be directly credited into savings account as a cashback(1:1).
I tried getting BPCL octane multiple times for past 1 year, but SBI is declining saying that they cant provide BPCL octane to people who already have cashback card. They advised to close cashback card to get octane, but I denied.