What works best for black top driveway cracks

The first step in repairing those cracks is to remove any debris or vegetation that you may have already in the crack. Get that out of the way, take a screwdriver and groove out the crack a little bit, and then blast that debris away using a leaf blower. It works great. Then break out a good quality crack filler, and fill in every crack you can find, and you may have to put a couple coats on in order to completely surface all of the cracks out. After everything’s dried, put on a complete coat of asphalt sealer, two coats if you want it to last a long time.

Thank you Shoshana will try on a hot day

pros use a small machine that has chunks of tar put in, and melts, it comes out the bottom with a "spreader". First they use a power chisel to 'square' the crack, and blow or high pressure wash out any debris. Will last a few years. We had a large asphalt parking lot for 20 years at our business, and this had to be done every couple years. NOTHING is permanent for this type of crack. I tried cleaning the crack with a high pressure washer, letting in dry, then using the liquid in a gallon jug. Works ok, but not near as effective as the real tar.

Hope this helps https://www.familyhandyman.com/masonry/asphalt-patching-and-crack-repair/view-all/

Think about what is causing the cracks. Sometimes tree roots...

Thank you

There is a birch tree there could that cause it