Bump (didn't want to start a new thread for it)
I'm still only getting about 23-24 MPG in my P5. I've had it for about 2 months and I've replaced the air filter with a K&N drop in, replaced the coil packs, plugs, and wires, and It runs great. I rarely rev over 4k RPM (it's a manual) It had fresh oil when i bought it (receipts to prove it,) i'm just pretty bummed on the mileage. I only fill up with Shell gas. Anything else i should check that might be hindering me? I saw earlier in the thread to check out the egr valve, what should i be looking for? Build up? gunk? Maybe give the MAF a good cleaning?