Not unless that dealer provides the oil at no charge to you.
To maintain the warranty, keep records and receipts.

A good read for you....

http://www.amsoil.com/magnuson_moss.aspx

You should print this off and take to your dealer.
Obviously, they're either uninformed...or trying to boost their sales.

One last note...dealers feed consumers bullshit all the time.
If you have questions, come to this forum first.
I assure you, you'll get the correct answer here.
Don't let these dealers bully you.

 

Now that's some more funny **** there....

 

Yes, it's true...that you have a lying dealer that's trying to screw you.