Well my car was built in Feb 04 and I had the plugs, coolant, filters etc done in Dec as it was well over the 5 year mark but less than 50K (30K miles). I noticed a lot of battery posts lately so have been thinking that was my next purchase. Took it for a nice drive today after it sat for a couple weeks in near freezing weather - started fine but it took a couple tries to lock it when I went for lunch with a Buddy. After a couple hour lunch the remote wouldn't open the car and nothing when I tried the ignition. Did notice the spoiler came up partially. It jumped with no problem but will be getting a new battery tomorrow. Like everyone says it is not worth waiting till it happens - just replace it. Thanks for almost getting me to do it before I needed it!