It may be possible to remove some bolts with multiple methods, for example a hex head bolt may also have a slot for a flathead screwdriver.
Start with removing either both the top two or bottom two bolts, then stabilize the license plate with one hand, or have someone hold it for you, while you remove the last two bolts so it doesn’t fall and scratch any paint on your car.
There are lots of cool ideas online to make old license plates into art if you want to give it new life!
It’s a good idea to use stainless steel bolts to avoid rust problems in the future! Make sure to put any new registration tabs on the new license plates, and always keep the appropriate registration documents in your car.
If the bolts still don’t come loose after letting the oil sit for 15 minutes, spray on more and let them sit for an hour. You can get penetrating oil at an automotive repair shop. If you can, spray behind the license plate to reach the back of the bolts, do this as well. You want to give the oil as much contact with the bolts as possible.
After you have dissolved some of the rust with vinegar, you can try to scrub off as much of the rust as you can with steel wool or a steel brush before attempting to loosen the bolts.
You don’t want to actually tighten the bolt, so if this doesn’t work the first time don’t keep hitting the wrench in the tightening position.
Use safety glasses and gloves when you operate an impact wrench. This method may just simply break the rusted bolts, so use it once you have exhausted all other options.
You can find anti-seize lubricant at an auto repair shop.
