Anyone Know Anything About Asphault Driveways?

[BigFish]

I got a customer who claims I "spilled" oil in his driveway when I was there working. He was there the whole time and did not call me about any problem for over a week? Seems to me if I had spilled anything in his driveway he would have called sooner than that! Anyway.....there is an apparent oil stain about the size of a sewer cap in the middle of this guys driveway (and my truck was not even parked on this spot! Looks more like an antifreeze spill to me) I tried ZEP driveway cleaner today and scrubbed the hell out of it but whatever the stain is it has already started to eat the driveway in two spots? I can't argue with the guy....the customer is always right I guess!My question is what to do? Pay to patch and seal it, pay for a new driveway? (It is practically new) Does anyone out there work putting in asphault driveways and can you offer me any advice?

Thanks in advance.