 I bought my Mazda6s Grand touring in Dec. of 07 used but still under factory 36k bumper to bumper with 33k miles on it. I've now had the car for 5 weeks and it's already back at the dealer with a blown engine. "Low oil conditions." Check your oil check it often these cars use it burn it I don't know they make oil disappear. The dealer tried to tell me the last person to do my oil change was to blame and I quickly responded with "well that would be you."