"Fred" wrote in message
...
Is there any way this can be done. For a new oil spot I've used washing
powder and this has sort of worked. However for "old" patches accumulated
over a couple of years what's the best way of getting rid of them? Is it
possible?

I know I could have googled but wary of snake oil products or a product's
effectiveness.


I used to use 'Gunk' engine cleaner which was very effective at emulsifying
the oil, then hose down.

Don't know if this drive cleaner is as effective:
http://tinyurl.com/m2fdj

Slurp