I sent my car in for a service today. Had all filters done, plus oil etc. During the service it was noted that a intake pipe was a little loose, and was rectified. All in all appeared to be a good service. Car was test driven, and all was reported to be fine. No codes or anything to suggest something was wrong. I picked up the car and within a minute I had a low oil pressure warning light and buzzer going. I turned the car around and went back to the workshop, and the mechanic said that it was fine during the road test. They did after the road test wash down the engine and believe that may have done something. So now they have the car and looking into it. I would like some suggestions as to what to look for. This is just to make sure that I go back with a little knowledge as to potential issues they may try on. Thanks in advance