I use fuchs Titan s racing 5w/40 on an evo IV mate i believe it's recommended for quite a few evos or the other one I've used is millers racing oil 5w/40
Although Fuchs 5w/40 is a good oil, if you are running in the region of 400hp or over then it is a good idea to go with an oil that can withstand a little fuel contamination due to some heat management up in the rev range,,
For anything around the region of 400hp or above i recomend Millers CFS 10w/60