Did my first engine detail on my personal 2013 Regal with e-assist, mild hybrid. I drive a lot highway miles and this thing was dirty. Recently bought the BLACKFIRE Cosmetic Engine Detail Kit from AG and was really impressed how it turned out. I have to say it took me longer than 7 minutes to complete, maybe more like 30 - 40 minutes. Not perfectly clean but with the electronics on this car I didn't want to risk any high pressure water.
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