Originally Posted by
onehundred80
So why not the other bulb? Or for that matter any other bulb on the car?
I'll ask the poster again what bulb are you replacing it with, part number and make?
Is the filament obviously burnt out, black inside the bulb or what?
e, maybe it is better tolerance, different brand. What I would do is switch them, and see if the same bulb, or the same side burns out. If the mount isn't solid, it could even be vibration killing the bulb. (I doubt it, but who knows)