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TSP is good stuff. I forgot to put the bucket under the grease drain and got a puddle on the concrete before I caught it. Wiped with a paper towel and actually used the new Dawn spray and it broke right up. It washed away in the rain.
Try Super Clean. My brother uses that all the time in his mechanical shop. You could eat off the floor in his shop if you wished. That's what I use to clean the glass in my MES also.