Glad to help
Behr makes some really good stuff for concrete cleaning and prep. If your concrete is stained pretty badly with oil and grease, their degreaser/cleaner works well. Then etch the concrete before you paint with the Behr concrete etcher.
I rented a high pressure washer to wash out the shop after I let the cleaner soak for about 30 minutes. I scrubbed the stained spots with a stiff brush. A couple of the stains took a couple of treatments.
I am looking forward to trying the muscle gloss. I purchased the red because it makes nuts, bolts, odd clips and stuff easier to see. I will update you after I get everything done.