Past few days Ive noticed my windshield was crappy lookin and I kept forgetting to wash it, anyway, today it finally got cool, so I didnt have the windows down, so I flipped on the defroster and I got steam out the vents and a nice sweet smell. Great, look over in the passenger floor, pull back the floormat and the floor is wet . I know theres a write up in the tech section to replace it, just wondering if any brand core is better than another? Advance has a bunch, ranging from 27 bucks to 50 bucks for the same application. Or are all these just crappy pieces, and should I go to the expense of getting a dealer one (well, if they even have em anymore). Ive heard some of the parts store cores are crap and will be rotted out in 5 years. I dont think I wanna make the heater core part of routine maintenance, and I dont wanna pay 300 bucks for a core. Thanks guys.