Yes, that's correct. I drive like grandma. I should keep the paper to do the real math mpg but I know it is really 16.?? gallon of gas. I'm just curious how far I make it all way in full of gas tank. 504 miles is my new record.

wow im lucky to hit 20mpg

Mine is good for low 30's on the highway.

How?

I don't quite understand it either. I get 19ish in the city, even when I got WOT a couple times, but I can't seem to get over 25-26 on the highway. Ever.

Volvo has used low boost turbos to make their engines more fuel efficent for years. I think Corey is reaping the benefits of his top swap. I've gotten 30mpg hi-way on my GT, thats 65mph cruise speed with the a/c.

a low boost condition at hi-way speed can make the car burn its intake charge much more completely since the small amount of heat that accompanies the low boost level helps to completely atomize the droplets of fuel and positive pressure promotes good turbulence inside the cylinder also aiding in better combustion.

I do believe Herc has posted feul economy as high as 34mpg with his GTP. The top swap engine's high compression can translate to hi efficency with a good tune and non-aggressive driving habits.

Yes last run I did to Pensacola I averaged 34 on the highway. When I first got the car I made a trip from Maine to CA and averaged 36.

Around town I'm getting 19-20

Yes, I use cruise control on highway too. All I know it really help mpg lot for use it. I spend 95% on highway than city. That's how I got good mpg average. If I live in city and drive the traffic then I bet I would get like 20-23 like some of you have.

My car NEVER got BRAKE on highway for 20 miles. I might hit the brake to let the car from ramp to get in sometimes but I'm working night shift so that's not lot of cars around me.

I've also managed 30mpg highway on a trip to NY and back, using the cruise and A/C. I left with a full tank, and refilled it at 180 miles. It took six gallons...

damn, no matter what i do i cant get anything better than 14-15 city and 20-22 highway

I know what is your problem. You have GTX hood that suck lot of air. That's kill mpg. I will happy to trade my stock hood for your GTX hood for better mpg.

same here. I wonder if it's because I have that LIM leak.

It's all in the tune and maintenance.

do you have a good tune that'll maximize efficiency without sacrficing performance?

yeah the best i ever averaged was 25