I'm really frustrated because I have gone through about three new sets of head light bulbs all sylvania silver star or sylvania silver star ultras. I have had my car for about 3 years now and one bulb always goes out in about 4 or 5 months after I put them in. These bulbs aren't low qualtiy so I don't get it. Is this a defect for '97 V6's????? Should I just stop buying nice bulbs? Any help is very appreciated. Thanks a lot.