OK, hear me out on this one: Your timing belt is the only belt on the car that you DON'T mess with. First off, lubricants will tend to soften or misshape the belt, your timing belt MUST be perfect or the timing will be off (hence the name TIMING belt). Don't mess with it, you're betting your engine on it. A visual inspection will do you no good. There is a plastic cover over the belt, even if you go through the headache of removing it, you can't really tell if it's ready to be replaced. Either way, you don't want to mess around with it, it's one of those parts that when it goes, it takes your engine with it. Just replace it at the recommended intervals. If you haven't had the car since 60K, have it replaced just to be on the safe side.