I have 5 pails of the Blackjack brand 10 year Latex sealer waiting for me to get off my lazy hind-end and put it down. There are a bunch of big cracks in my driveway that needs a couple gallons of crack filler and sand along with a bag of patch. We pressure washed all the dirt out of them as well. I think prep work is a major part of longevity. From what I'm told it was done 3 years ago by a "pro" that had spraying equipment. Looks worse than it did before it was done then. Haven't had an asphalt driveway in years, so we'll see how it goes.