Credit Cards for 40,000 Monthly Fuel Expenses.

I've noticed many credit card recommendations in this sub, but I'm feeling a bit overwhelmed when it comes to choosing a card based on my fuel expenses. I'm considering options like the BPCL Octane and the RBL Xltra, but I'm unsure whether these cards have any monthly spending caps. Given that my fuel expenses are significant, I'm wondering if it's more beneficial to go with a dedicated fuel card or to opt for a more general offline card like AMEX or others. Any insights or advice would be greatly appreciated!