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  1. #1
    FEP Power Member racerxmd's Avatar
    Join Date
    Sep 2007

    Question Clean Underside of Car"s Chassis?

    Wanting to clean up and detail some under the chassis and engine bay. What is everyone using? Just a pressure washer or a hot water or steam pressure washer? I have a few areas that have some dirt w/ oil or grease I wanted to get rid of.


  2. #2
    FEP Supporter
    ddx77's Avatar
    Join Date
    Jul 2011
    Fort Lauderdale, FL

    Default Clean Underside of Car"s Chassis?

    My buddy used a steam pressure washer on an outside lift (because of the mess). It was a 1970 Chevelle with undercoating that was original to the car. It came out amazing, I never would have thought it would have. Ill see if I have the before and after pics.

    The picture to the right with the three shots is after he resprayed it with a bed liner.

  3. #3
    FEP Member Dave9052's Avatar
    Join Date
    Jun 2016
    Saint Clair MI 48079


    Wow Thanks for the tip!

  4. #4
    FEP Senior Member 83GTJIM's Avatar
    Join Date
    Apr 2012
    Springfield MO


    This gives me hope! I want to remove the "original" (dealer) Ziebart from my car.
    MCA #110307
    "Saved" 25k mi 83 GT -
    83 GT T Top
    83 GT Convt
    84 20th Anniversary T Top GT350 SOLD 11/17
    84 GT Convt SOLD 08/18

  5. #5


    Petrol on a rag, and a toothbrush dipped in Petrol and nylon scrapper, for the caked on oil and grease etc, will remove all except the grey undercoat. It is a long and tedious process, but when the car hoist, steam cleaners and sand blasters are not available, a bit of elbow grease produces the goods.Name:  Engine Bay B4.jpg
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  6. #6


    WD40 and PB blaster, liberal amounts. Lots of elbow grease and patience.

  7. #7


    A good soap designed to cut grease and a scrub brush does wonders. Dawn, Joy, etc. not harsh at all but they will take wax right off of a car so keep that in mind when using.

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