I am a little past 72K miles on my car. I know I need a 70k checkup (which is basically an oil change and rotating tires, correct?) Does anyone know the approx cost of this? Also, I was told by one place my timing belt should be replaced as it was cracking. Considering how much work it takes to even look at it, do you think I was being lied to? I am not in extreme weather conditions... I lived in Sacramento for 2 years but doubt that would make it crack this soon. I called another place and he thinks it is 'a load of crap' that I would need to have it replaced this soon. Better to be safe then sorry or forget about it until I reach 90-100?