The following photos were taken in 2014. This test was done by a large Service & Supply company in Shreveport, LA. They tested at several different strengths 10:1 / 50:50 / and 100% concentrate. They let it soak for 20 minutes and the results at all levels were successful. The service worker doing the power washing said he had never seen a degreaser work that well. The power washer used cold water only.

See results below:
(click on images for larger size)

10:1 Blend With Water
101BeforeBefore 101AfterAfter
50:50 Blend With Water
5050BeforeBefore 5050AfterAfter


coc1BeforeBefore coc1AfterAfter
coc2BeforeBefore coc2AfterAfter