We just repaired two very long asphalt driveways. Had a large crew with 4 large commercial flatbeds and 5 smaller trucks, excavator, asphalt laying machine, cutting blades, water jets, the full works. It took almost 5 hours and they created a new rock foundation and then placed several inches thick layer of asphalt, city road grade.
The owner of the company advised as follows: Do not seal for at least 90 days. If you seal later and decide to use big box stores materials, get a 50 lb bag of silica sand and mix with at least 10 or 15 gallons or two / three buckets into a thick consistency.