My opinion is that you should do all Service Intevals whether they are necessary or not. They do two things for you... First is they provide proof that you have maintained the vehicle in case there is a service issue and you need to excercise the warranty.

Secondly, provided you use your Isuzu dealer for the service, they help you to build a relationship with the dealership's service department if there is a warranty issue that is marginally covered. The dealer that did all my service maintenance was always quick to do whatever I needed done, and covered all repairs under warranty without a question. I've heard this same opinion from others. It's up to you, but the amount you overpay for service could make a big difference down the road. Food for thought.

Of course if we were all driving Fords or Chevys my opinion would be different. Also, once the warranty is expired the question may become moot.

-- John