Changed mine at 10K. It did not look to bad from what I could tell.

 

For all you guys who live and drive this car in the cold, winter climates, I would advise you to NOT use the LE 607. It's a bit on the thick side (like molassus). Unless you intend to drive it sedately around the block about 10 times before you head out, you are better to go with a multigrade gear oil (like Mobil 1 75W90).

 

I almost always use Mobil1 75w90 for my clients, and on the occasional chance they request LE-607, I get that for them. Either fluid is fantastic and show better wear characteristics than OEM (which is not even available as a replacement fluid). The nice thing is that you can pick up Mobil1 at just about any Kragen/Autozone/Pep Boys, etc. Whereas you have to order LE-607 on the web, pay for shipping and wait for it.

The most important thing is to keep fresh fluid in there. 10-15k at most between changes.

-Hockey