There are many different ways to keep the concrete around your home clean. There are also a couple of scam products that are well known to have great funding from home improvement companies, not because they’re they best, but they make the corporation a lot of money.
Bob Villa recommends TSP and muriatic acid to clean oil and stains.
The Concrete Network discusses various types of fake or fraud cleaners that sell for a lot and don’t do much.
You can manually clean concrete with a power washer or scrubber of some sort. Chemicals should be tried after you’ve tried the easiest approaches.