By Timothy Dahl Dec 1, 2018 Here is some very practical advice that we just have to share: Forget quickie car washes with the oversize brushes that might be doing more harm than good. You want to take care of your vehicle and its protective coat, so it's about time to start doing the right kind of DIY car wash and wax. I spent a day with Mike Pennington and Rick McDonough of Meguiars, who demonstrated the proper way to wash your car and maintain a clean exterior. I regularly