Hi, I own an 07 Titan LE Crew Cab. Not too long ago, when I went to the dealership to get an oil change, it's free..lol. The guy there told me some crap about a $500 dollar service check that they do on all Titan when they they reach 30,000 miles. I've had my truck since 07 and I was wondering, if anyone who has a Titan with more than 30'000 miles had any problems with it that were not normal wear and tear. Or if they have even heard about this. Is this something I need to take seriously or is the Shop trying to get some money? What do you think?