: How many miles to you get per tankfull with your north*?

11-06-07, 07:25 PM
Well....Im getting between 475 & 500 miles on a tank. Thats mostly highway. Hope it stays in that range! She has 123k miles now.:thepan:

11-06-07, 07:35 PM
I average about 450.

11-06-07, 07:38 PM
:want:I dont get on mine much besides the highway ramp..hehe

11-06-07, 08:00 PM
Me neither. Maybe a monthly WOT to keep her cleaned out.

11-06-07, 09:03 PM
I think my tank is an 8 gallon. I would say I can go about 1 week. I would get between 40 and 50 miles per tank. Yes I run it WOT most of the time. :shhh:

11-06-07, 09:26 PM
^^ Yup...I think me and AJ are keeping the economy alive with all the gas we buy. I can make it maybe 300 miles off a full tank, and that's coasting it down the hills and parking lots. Then again I do run her hard and fast, no carbon build-up here! :yup:

11-06-07, 10:46 PM
Sold 97 SDV with 27k on it. 30 mpg on highway at 75 to 80 mph. Never checked it in town. CTS gets abougt 15 in town. 26--27 on highway.

11-07-07, 01:36 AM
oh my, Im getting around 12 MPG, and i get about 300 miles too, i WOT it so much my pocket is hurting :P

11-07-07, 08:17 AM
Wow....why do so many people WOT so often? to hear the engine at high idle & waste money on expensive gas?:hide:

11-07-07, 08:58 AM
WOT is not done at idle. Go back and study the threads again. Most later N*'s have a Park/Neutral 4,000 rpm rev limiter built in so there is no such thing as a "high idle WOT". As someone else just recently asked "Why....", it's there to protect the engine from just that sort of dumb stuff.

Depending whether I am in town, on the flat Shore highway, night time road running, cruising to Florida, or driving the Blue Ridge mountains my gas mileage varies all over the place. Comparing you to me to an STS in the Rockies is apples, oranges, and footballs.

11-07-07, 01:18 PM
OOPPS...Sorry submariner...I used the wrong word(idle), I meant WOT while the car is in motion. :banghead:

11-08-07, 08:02 PM
I get between 370 and 400 miles on the Millenium Falcon before I fill her up with Di-Lithium crystals again...the Deville gets about the same, probably.

11-09-07, 12:25 PM
It's all about how I drive the car . As much as I can get 450 I can also get much lower than that

11-12-07, 04:50 PM
How many gallons does the tank hold?

11-12-07, 05:06 PM
275 is my max that is a mix of highway and city though.

11-12-07, 05:06 PM
How many gallons does the tank hold?

not sure of 93-97 but 98-04 is 18 gallons I believe.

11-15-07, 01:57 AM
About 300 miles.. mostly town and country.

11-20-07, 03:12 PM
How on earth are people hitting 450??
I think the max i have ever been is up2 350 but thats before i did a couple WOTs. In any case when i drive with the INST MPG on my cluster i average bout 23-27 at around 2k rpms doing bout 65...Is that what the normal reading should be?

11-20-07, 04:38 PM
Yep, 23-27 instant highway at 65 or so. IF I work at it, I can squeeze in 18.8 gallons by click-stop-click-stop the pump. Sooooooo.....IF I got 25 mpg on a strictly highway run I might get to 450 on fumes. Not recommended. Matter of fact, 400 would be about the max safe run at highway mileage so you didn't run the fuel pump dry which is a no-no on a N*. (450 miles on 17 gal. is 26.5 mpg. Practically impossible unless unloaded and < 60 mph on pretty level road.) My post from 02/06 from a Florida round trip run showed 23.9mpg, 2 people, 87 octane, 70+ avg. speed and the usual trunkload of junk. This last March it was 24.1, same trip, all 87, same load, same speeds but CORSA system. I'm talking about a 2002 STS. Any other car/combination and none of this means squat.

11-20-07, 05:09 PM
27mpg over 150 miles highway

11-20-07, 06:32 PM
:thepan: In a what ? Kenworth?

11-20-07, 07:43 PM
So what's the point of this thread? Different cars, different tank sizes, different driving habits, different condition/age of N*. :hmm:

17 avg, 27 highway X tank size.

11-29-07, 05:26 PM
450 miles??? 300 miles, **** man.

I get 200 to a tank but i ALWAYS fill up at the 1/8th tank line.

11-29-07, 05:36 PM
Here's a comparison from 2 areas, same car:

1. Flat MD eastern shore farm country, open roads, 45-70 deg.F, 50-55 mph limits: 21.5 to 23.5 mpg, weather depending.....

2. Western MD/VA/WV hill, foothill, mountain driving, 40-65 deg.F, 35-50 mph limits: 18.6-19.5 mpg.

All 87 octane Shell, Chevron, or Texaco.

Multiply any of those by a 16 gallon fillup for MPT.

Where you is, is what you gets.........(and 2 runs to 132 mph limit blows either figure out the window.......)

11-29-07, 05:45 PM
Between Fairbanks and Anchorage over the Parks Highway 365 miles. 22.5 MPG while averaging 65 MPH. '06 AWD STS.

11-29-07, 05:48 PM
Averaged 30.9 miles per gallon on I-75 on the drive back from Cincinnati last night. 2003 SLS 93 octane 400-450 tankful...mostly highway

12-05-07, 09:11 AM
With the cold weather set in here in minnesota (about 5 above zero.) Im lucky to see 18-20 mpg on the free way. Summer time around 25 mpg. Also with this short ride to work, only 7 miles, im getting like 250 to a tank. But it dose last 1-2 weeks

12-05-07, 12:58 PM
Ya gotta stop to take a pee anyway so just fill up then

01-13-08, 08:20 AM
I average about 23+ mpg on flat Florida roads mixed freeway/country. Very happy with my car looks, sounds, runs like a dream and by the way o so comfortable for a big guy!

01-14-08, 02:31 AM
14.4 on my 99 concours mixture of both street and highway. WOT 24/7

01-20-08, 07:02 AM
'99 Deville turning 100k, fill-up once per week @ 300-320 miles
with about 1/4 of a tank left.

Curious though...it goes from F directly to 18, manual says
a 20 gallon tank. Was GM mad @ the number 19 ???


'99 Deville - lifetime family member
'94 Impala SS - summer fun