[Porsche944]

I get between 23 and 30 MPG in my '87 NA on mid-grade pump gas and an AutoThority chip with stock intake and exhaust. I haven't checked my 951's mileage recently (I'm in the process of doing a head gasket), but I did get some where around 30 MGP during a 300+ mile drive from Beaufort, SC to Charlotte NC when I brought the car home last March. The 951 has a Guru chip, 3.0 BAR FPR, ReliaBoost MBC, and stock exhaust/intake.