My Equator is about to flip over 100K, and it's running great and I want to keep it that way. Couple of questions for those that are more knowledgable- does this truck have a timing belt or a chain? Is the engine an interference type or non-interference? I assume it has a chain. Should I go ahead and change the chain or run it till it breaks? I do regular oil changes every 5-7K. If there's any other maintenance that anyone would recommend at 100K I'd like to hear from you. Thanks, all!