Let me start off by saying I'm a Trucker. I spend around 2-3K a week on fuel. The station for fill-ups will vary so a specific station card aka Shell or BP wouldn't probably work. Mostly use Truckstop gas stations such as Loves,Pilot,Flying J etc. What is the best credit card to get rewards, discounts or cash back on diesel fuel?

Im currently using Chase Sapphire preferred, I am finally now deciding to move to a More Diesel/gas friendly rewards cash back program. Please assist me in the best way to obtain rewards/cash back.

Thank you Blessed day