Coming up on 90,000

[Aimster]

Should I take it to the dealership to have 90,000 service done or just do it myself? What exactly is the 90,000 service?

Will doing it myself void any kind of warranty I might have? I have warranty from the dealership where I got the car from. Carmax.

[motordavid]

Doing any work yourself or at any other joint, will have no effect on ext warr., unless Carmax's has some bs fine print.

What's a "90,000 service"?

Read your Manual...

Do your service interval lights call for "insp", etc.?
What's the ser. history?

Not enough info in your post.