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I am not sure whether this is Engine Oil, Diesel or Transmission Fluid because I was not here when this happened. What i certainly know is that it was a Diesel tractor that caused it.

Council won't help with the clean up and that stain just won't go away with Water. What can I do to clean it myself?

Its an Asphalt Road

  • Is it a driveway or a public road? – BrownRedHawk Aug 30 '16 at 18:51
  • Its supposed to be a road but that specific point is end of the road and there is no traffic on it except to our home. However they say since its not under public use we cant clean it for you – Hanky Panky Aug 31 '16 at 1:21
  • Over here (.nl) the fire department generally deals with oil spills. You could ask them how they do it. – Hobbes Sep 21 '16 at 9:21

You could investigate trying to spread a layer of the dry clay type cat litter over the spot and grinding it down into the surface with your foot. If there is any residual petro/oil material there that has not reacted with the asphalt road surface the clay material should absorb it and help to clean the surface. It may be necessary to leave the clay material there for a day or so. If you see some improvement after sweeping/vacuuming up the first application you may want to try a second or third iteration of the treatment.

A final stage of cleanup with water can be aided by using a soap such as laundry detergent and a scrub brush. The soap will emulsify the oils and allow some of it to be washed away with the water.

In the case where the spill has actually had a reaction with the asphalt it may be very difficult if next to impossible to remove the spot.

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  • Thanks! I will try that in the morning. On the down-side I am sure it already has reacted with the Asphalt because its been there for a few days now – Hanky Panky Aug 30 '16 at 14:56

I have successfully removed oil stains from concrete using oven cleaner, it has to be the "regular" oven cleaner NOT the "fume free" stuff. Spray it on, get it good and wet, scrub it with a stiff bristled brush, let it sit for a few minutes, scrub it again, spray it off. If it's extra persistent, spray it again, let it sit for a bit, and then pour cat litter or oil absorber on top of it and let it sit for a few hours and then sweep it up. I have made them completely disappear this way.

Caveat: This was on concrete, so I do not know if it would eat the asphalt or not so you may want to test it in a small hidden area first.

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  • That sounds promsing! – Hanky Panky Aug 31 '16 at 1:22

After a few days it has soaked in. Beside trying cat liter and laundry soap as previously posted you could try Coka-cola. But most likely you will need a commercial product that is a oil degreaser (eater)(asphalt safe) to break the oil down and then flush it away.
I would avoid trying to just cover it with a asphalt sealer, until the oils are dissolved, as the oils will likely migrate back though and show again.

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I've been told that pressure washing will help with these things. However I haven't gotten around to trying it yet.

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  • If you try pressure washing watch your nozzle pressure with asphalt as it can dig in if set too high. – spicetraders Aug 30 '16 at 18:20
  • I missed that detail. – Francis Aug 30 '16 at 20:51
  • A pressure washer will just move the oil around, i.e. off the pavement and into the soil. You don't want that. – Hobbes Sep 21 '16 at 9:18

Brake cleaner will bring the oil to the surface, use a rag to soak it up.

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