If you are someone who plans on keeping your car for a long time then you must pay attention. Many old cars suffer from electrical problems as they age. The most common problem is power window assemblies that wear out over time. Below is a video from Scotty Kilmer’s channel on a silicone spray that will preserve the power window mechanism and actually preserve the speed in which the window goes up and down. Power windows can cost upwards of $1,000 per unit to replace. For other quick do it yourself tips check out the rest of Scotty’s channel!