I recently bought a 2006 Mitsubishi Lancer Evolution IX GSR, had been driving it around for a while and started noticing oil spots on my driveway, took it to a mechanic, he said it was my oil return line on the bottom of the car front passenger side by front bumper. Is this a common problem?
Also I sometimes have given the car some decent throttle, and it's almost like the fuel? shuts off? I let off gas for a second, and then continue driving, any possibilities on what that could be? If I need to explain more I can.

Thanks.

Dallas