Mine stared leaking at 30k... but someone had backed into me at a very slow speed in a parking lot and it was like 3 days after that i noticed it was leaking... I was still on warranty, and my dealership covered it... I'm planing on purchasing an extended warranty for sure... because well... I got thing to do with my time, and fixing little mishaps doesn't fit into m schedule... lol.. 50% isn't really that bad of an offer... Try to counter... tell them you'll purchase a 100,000 mile warranty if they do the radiator swap for free... You're getting the best of both worlds...