Stop Spraying WD-40 on These 9Things — You're Damaging Your Car Without Knowing It

WD-40 is in every garage in the country. It is also one of the most misunderstood products on the planet — and most owners are using it in places where it actively damages their car. Here are nine of those places, and what to reach for instead. I am a mechanic. I have used WD-40 for thirty years. I am also the guy who replaced my own window regulator motor at $230 because I sprayed WD-40 into the channel one winter. That is the entire reason I made this video. This is not a video about why WD-40 is bad. WD-40 is excellent at the three things it was designed to do. The problem is the marketing department turned it into a universal lubricant in the public imagination, and it is not a lubricant. Knowing the boundary of the tool is what keeps your car alive. If this saved you a repair bill — drop your car's mileage in the comments. I am collecting them for a future deep-dive on high-mileage owners and what they actually do differently. Subscribe with the bell to get tagged when that one drops. TIMESTAMPS #WD40 #CarMaintenance #DIYCar #AutoRepair #MechanicTips #CarCare #AutomotiveDIY #CarHacks #VehicleMaintenance #GarageTruth