Can I use WD-40 on car key?
Can I use WD-40 on car key? As stated above, WD-40 is not fine. It will eventually gum up and collect all sorts of unimaginable gunk. You'll also find that many ignition lock cylinders (and keys) simply wear out, which is what can be causing the stickiness you're now encountering rather than a lack of lube. Can I use WD-40 on my car door lock? WD-40 is very effective at keeping your car door lock lubricated and frost-free. Simply spray a little into the lock and it should prevent ice and frost buildup for several days. While you're at it,...