I called 2 different dealers, and they both gave me different answers as to whether I have a main-free battery. What's the big deal with not knowing about these batteries? I never looked at mine, so I don't know, but I heard they switched to a maint-free in 98. Can I just buy a regular battery at the local auto-parts store? I want to get something bigger and stronger, with more reserve and CCA power, just for some extra over-head. Any ideas or tips?