What is the average life span of these bulbs for you?
Where did you purchase them?
Was the warranty honored at the place of purchase or did you have to deal with Sylvania?
I would like to go back to SilverStars. Maybe Sylvania made some longevity improvements to the SilverStar Ultras. If I can return and get a replacement at a store, WalMart would probably be the best choice.
The bulbs last about 3 months, like I said, my Sprinter eats bulbs..Silverstars or anything else.
I bought them at PartsSource up here in Canuckville but have returned bulbs to Wal-Mart, O'Reilleys and Auto Zones in the US. It says 12 months right on the package, so I keep that and then bring in the package. I also keep a photocopy of the original reciept with me but rarely get asked for it. As long as they sell the bulbs and you are replacing same for same it is super easy. I also run these bulbs in my GM trucks, warranty has not been an issue as they last well over a year in those applications.