Hey, I realized my gas mileage on my 3.0si is really poor and I do not drive with a lead foot. I drive with a feather foot and let it roll most of the time. I'm getting around less than 15MPG every single time, driving highway barely brings it up to 15. Even when i'm idling at a red light, the MPG would drop 1-2 every 5 seconds, sometimes going down to 13.3
...
It shows on my service record "EVAP/DMTL occasional failure" and that was it. I also had some Fuel delivery unit done due to a recall.
There are no check engine lights, and transmission is sometimes jerky on cold starts, I bought it in and they can't find a problem.
Thanks!