So I usually park my work truck on the gravel but on occasion I will put it on my exposed aggregate concrete driveway. It’s got a jump tank on it and there’s always some residual fuel drops out of the bed from knuckleheads not emptying the hose when done fueling. I sometimes go through 600 gallons of fuel in a day on the job. Anyhoo I got some spots on my concrete and have tried super clean and 30 second cleaner and the darn stain is still there. Is there a specific chemical that will dissolve, loosen, or just help getting that stuff off my driveway?