OK so almost exactly a year ago I came on these forums looking for advice on a new Mazda3. As of 11/25 my wife bought a new 09 Mazda3 i-touring value 4-door 
So here is my question I've always taken care of my own cars and performed the routine maintenance myself. The Mazda dealer is giving us free oil changes throughout the warranty with a catch... we have to go there for all routine check-ups and maintenance. The first one coming up is the 15k check-up. I was told this will run me about $300. Plus when I asked for the details on the oil changes they told me they use a regular non-synthetic Valvoline oil and standard oil filters.
When I change oil on my cars I use Motorcraft or Napa gold oil filters and run Mobil1 5000 synthetic blend oil. I'm thinking I'm better off continuing to do my own oil changes and avoid the cost of their service fees. I'm pretty sure I can handle my own routine maintenance. On that note are there service manual CD's available for these cars?
What are your guys thought/comments?

So here is my question I've always taken care of my own cars and performed the routine maintenance myself. The Mazda dealer is giving us free oil changes throughout the warranty with a catch... we have to go there for all routine check-ups and maintenance. The first one coming up is the 15k check-up. I was told this will run me about $300. Plus when I asked for the details on the oil changes they told me they use a regular non-synthetic Valvoline oil and standard oil filters.
When I change oil on my cars I use Motorcraft or Napa gold oil filters and run Mobil1 5000 synthetic blend oil. I'm thinking I'm better off continuing to do my own oil changes and avoid the cost of their service fees. I'm pretty sure I can handle my own routine maintenance. On that note are there service manual CD's available for these cars?
What are your guys thought/comments?