Anybody (hyundaitech ?) know how the 60,000 mile change interval came about for a timing belt (2002 XG350)? It has to be an odds thing, right? Something like 99.4% will not fail before 60,000 miles (and if they do Hyundai has to pay to repair the engine - so you know that number is pretty close to 100%). Does the failure rate really increase that dramatically after 60k miles? what about 70k? 80k? I guess I'm wondering how much extra risk I would be taking if I were to push this interval up to where I would only have to replace the belt once instead of twice during the life of the car (I'm expecting 150k - 200k miles out of this vehicle). Anyone care to hazzard a guess? At about $1000 a belt change its a valid question. I'm the second owner of the vehicle, so there is no warrenty after 60,000 miles.
Dan