On 22/06/2019 11:21, Chris Hogg wrote:
On Sat, 22 Jun 2019 01:30:39 -0700 (PDT), Lee Nowell
wrote:

Hi All

We have a red tarmac drive and had an old car with an oil leak resulting is an oil stain on the drive (around 1m2)? What's the best way to remove the stain?

Thanks

Lee.

Not easy. Spread oil over the rest of the drive? Or bitumen?

Not possible. The black colour comes from carbon particulate in the oil
which will just become absorbed in the tarmac. Not soluble in anything.