Not to be confused with 'drag queen,' Diaqueen LSD oil is the factory fluid for your Evo 8 & 9's transfer case and rear differential. This is the genuine Mitsubishi OEM fluid, and yes it's kind of expensive, but even the best racers and tuner shops swear by it. Diaqueen LSD is only available in 4L containers, which will get you about four fluid changes. The rear differential holds .55L and the transfer case requires .6L.