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  Topic Review (Newest First)
08-23-2008 04:43 PM
Silver_04 I went on a 300 mile highway trip last week and my avg.was 26.7 mpg.I was pretty happy with that for a 3.5 HO.Usually around town back and forth to work it,s about 19 in the summer and about 18.1 in the winter with the snows on.
08-23-2008 02:13 PM
seraz i get 28-32 mpg highway average of 22mpg with my 3.5 ho so i love it
08-23-2008 01:50 PM
spyderdiablo i probably get between 27 and 30 on the highway, and 22-24 in the city.
08-11-2008 05:30 PM
gsaun039 My latest trip from Chapel Hill to Arlington, VA got 31.7 mpg (114,000 miles on odometer). Includes some city driving in Raleigh and Chapel Hill as well as some through the Arlington streets.

I did about 50 miles of "in town" driving and then returned (including stop and roll construction traffic getting out of DC). Overall gas mileage for the entire trip: 31.0 mpg.

My normal mileage has been running about 26.4 with a 30/70 split of city and highway driving.

As I noted elsewhere, I replaced the airdam on my car and noticed both the radiator temperature being somewhat lower AND an increase in gas mileage. Four weeks ago when I made the same run to Arlington (same stops for gas, same approximate vehicle weight, same tire pressure, same gasoline stations) I got 30.4 mpg until just outside of the Capital Beltway. Heavy rain dragged the mileage down on the final 20 miles of the trip.
08-10-2008 09:47 AM
JB1996Intrepid My 1996 ES with a 3.5 is getting 23.4 combined city/ country road commuting on midrange gas. I'd say maybe 20% city, 80% country road driving. I usually use SeaFoam in the gas when I fill up; that seems to have given me about a mile per gallon improvement.

Total miles so far: 150,970.
07-16-2008 04:10 AM
garyinwhistler I'll join the fun. Last week on a trip from vancouver to calgary and back I got 29.8mpg on the otis in a 1999 with a 2.7 and 87 octane(cheap gas).

Keep in mind this is crossing both the coast and rocky mountains twice. 2600kms total. For such a big car I couldn't be happier.

I usually average 24mpg for city driving in the mountains on 10% ethanol.


Gary
07-15-2008 09:56 PM
D76G12 I average ~22 MPG in my R/T with premium. 45 miles a day about half of which is highway and on the freeway I hardly ever see the low side of 75; it's usually 80-85 MPH as traffic permits ...
07-15-2008 08:51 PM
Matt Leg I average 18.9 whit my 3.2 and the lower-grade fuel.18 min. highway and 1 hour city cost me 17$ . I do this every days!!
07-15-2008 08:03 PM
Scott_AU
Quote:
then I guess tellin ya I pulled that mpg on 83 which is mostly up and down hills would really make ya mad eh?
correct.
07-15-2008 01:26 AM
Veeb0rg
Quote:
Originally Posted by Scott_AU View Post
dude i get 21mpg on a flat highway with cruise on @ 65mph, i got the 3.3 idk why i get such crappy gas mileage compared to the other 3.3's
then I guess tellin ya I pulled that mpg on 83 which is mostly up and down hills would really make ya mad eh?
07-15-2008 12:24 AM
Scott_AU dude i get 21mpg on a flat highway with cruise on @ 65mph, i got the 3.3 idk why i get such crappy gas mileage compared to the other 3.3's
07-14-2008 07:25 PM
Veeb0rg This carlisle Trip I managed 31-34 Highway *doin 75 the whole time*

95 w/ 3.3l
07-14-2008 07:20 PM
BOSS B lol...i only get 6...on tha highway...about 4 in the city...lol...
07-14-2008 05:13 PM
CluelessinMO Recent trip from Kansas City to Cincinnati & back: My 3.2 got 28.0, 28.7, and 30.0 at 70 with air conditioning on. The 30 was with a slight tailwind, the 28.0 was with a slight headwind.
07-14-2008 12:37 AM
Tallicdeth I did that too, removing the restrictor, I didn't notice much difference. The only nice thing is that it gets alot more air. I'm thinking I'm going to build a new scoop for the intake box. Get more air from that nice little area behind the fender.

Also I need to either find a way to seal the box or just buy a new one. I have two cracks and only one bolt holding the top cover on.
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