I'm thinking about bringing the car in for service when the 30k miles is up and have them dump the fluids and refill them. Are all the mitsu dealerships the same and fill it back up with the DIAQUEEN oil, or do they change it up a lot?

 

We use the Diaqueen on every EVO.

 

they're all SUPPOSED to use diaqueen LSD oil, but there are reports of mitsu dealers using regular diaqueen gear oil and you'll know it cause your transfer case will start whining in about 500 miles or so. save the hassle and change it yourself.