Am I Dreaming?

[severence]

surprised that piece of crap didn't break down. didn't gm drop pontiac and buick?

[HotZ28]

Originally Posted by severence

surprised that piece of crap didn't break down. didn't gm drop pontiac and buick?

Not yet, what is your point?

[C man]

You should post somewhere else. Obviously you hardly know about cars if you think buick and pontiac aren't around. Do you even own one?

[RT Jam]

My actual numbers seem lower than the DIC fuel economy numbers.

[Jrs3800]

The Mileage on these cars is dependent of a battery of different things.. weight, Gear ratio, Terrain and the state of tune..

Best I have ever done in a Bonneville was 33 MPG... And I have the 3.06 Ratio.. Car was pretty loaded and the AC was blasting.. Did 31 Mpg with the car loaded to gills, AC on, with a Complete 3800 Series II in the trunk( disassembled tho ) With my massive tool box and a few other items, with the luggage tucked in there.... Took 50 Psi in the air struts to hold it up.. I wasn't going slow either and did the 31... I have a friend that has a Park Avenue with the 2.84 ratio and he did 33-34 for his 1300 mile trip up and back... He was amazed with that.. My 03 Bonneville did 28 for most of my trip with me running 80 Mph most of the way, its also a decent bit heavier than my 95 Bonneville.. The slower you spin the motor the better... You'll get great mileage at 60 Mpg as opposed to 80 Mph..

the 2.84-2.86 Ratios have been known to do 33-35, the 2.93-2.97 have been known to do 30-34 and the 3.05-3.06's have been known to do 28-32

This is one of the things the 3800 has always been known for... Great torque, decent power and still having great economy for a large car.. Its the reason the 3800 was moving the large GM platforms.. Heck even my Van with the 3800 Gets around really good..

[RT Jam]

How do you recognize the different gear ratios in each car?

[HotZ28]

Originally Posted by RT Jam

How do you recognize the different gear ratios in each car?

http://www.automotiveforums.com/vbul...0&postcount=11

[mcmlxv]

2001 Park Avenue Base 1SE Prestige, 3.05 final drive, Firestone FR710s at 30 psi, fresh alignment, single occupant (driver) 235 lbs, cruise at 60mph, windows up, a/c off, 65 degrees and low humidity, generally flat terrain with 1 stop on a 360 mile trip.

35.7 mpg. And that's with E10.

You're not dreaming.

These cars can't be beat.

[regal5575]

One of the possible reasons for a decrease in mileage over the last couple of years is the amount of alcohol in a gallon of gasoline these days. A few years ago you could by a gallon of gasoline and get a gallon of gasoline. These days you get .9 gasoline and .1 alcohol. I don't know the numbers but you don't same MPG with today's gallon of gasoline.

And if that isn't enough there is the on going debate about the value of "Top Tier Gasoline" suppliers. http://www.toptiergas.com/index.html
I personally think it get better gas mileage with "Top Tier" gasoline when I drive my vintage motorhome.