Tips/Products for removing oil stains from concrete

[Detail Ecosse]

As title really need to remove some very old oily/greasy stains from a concrete floor, whats the best techniques/products that actually work rather than claiming to work.

TIA
Gav

[LD1Racing]

You could give K2R a try. Never used it on concrete but works on everything else including oil soaked into teak. I'd be surprised if it didn't.

[Jonny671]

Does Coke work?

Someone told me when I was little they use Coke in other countries to clean the road up after a crash..

[Dr Phibes]

Coke does work to a degree will fade the stain really well.