16.87mpg?!?! [Archive] - GrandAmGT.com Forum

PDA

View Full Version : 16.87mpg?!?!


Jimmayy12
05-02-2013, 09:27 PM
Hey so I just did a bunch of trips and added up all my fuel costs and it worked out to me getting 16.87mpg which to me doesn't seem good at all.
Only happened when I changed fuel pump & entire assembly.

Tune up was also done 20xxx ago. (Spark plugs & fuel filter & air filter)
(Also just put a bottle of techron in)

Anybody have advice or answers to what it could be?

bricooper78
05-02-2013, 09:49 PM
My car is stock, 36 psi in the tires, stock wheels, stock tire size, stock exhaust...

20K on a complete freshen up, plugs/wires/coils/coolant/battery/starter/MAF sensor and IAT sensor cleaned... CAI intake, new filter.

60mph in 50 degrees, on the highway, I hit 26.3, 26.1, 26.25 in 3 tanks over a week.

This was after new pump and filter, old pump may have been a LITTLE slow due to age, but that isn't anywhere out of range for this motor, with age on it, IF THIS IS IN TOWN and you're heavy on it.

You're about the 14th person to have similar issues, somewhere, someone has worse gas, or you guys are way heavier footed than some of us... we don't have an answer

T50
05-03-2013, 01:25 AM
interesting, I too have bad gas mileage ( the same roughly), though seems to improve slightly from new plugs,

it was 20 a while ago though, slightly worst driving habits though (more heavy accel)

bricooper78
05-03-2013, 11:09 AM
Yea, there can be several mpg difference in city vs highway driving, I remember reading the epa estimate w under 20 city, I just can't remember what it was exactly

pauljs75
05-07-2013, 11:39 AM
Years ago when I did mostly highway driving, I'd get 32-33. But now that most of my driving is a commute under 10miles with six traffic lights, I get a similarly lousy number. These cars seem to do their best in terms of economy if you can lock the cruise control at 70 on the highway with the RPM at 2100. That seems to be where the sweet spot is. But in stop-and-go traffic, you can kiss any chance for good numbers goodbye. Winter grade fuel and/or ethanol blend definitely doesn't help either.

bricooper78
05-07-2013, 07:11 PM
Right, most cars cruise at or real close to 2K at peak efficiency..
I have had 1 tank since I owned the car at 31mpg, it was fill it-straight to the highway, 65 miles, and stopped to top it back off to see what it got.

I have done a mostly all in town tank, nearly, it's about 3/8ths, so as soon as I fill back up, I was gonna post that up. Age really doesn't help out the fuel mileage either..

Now my in town, is the car starts, gets 30 seconds or so to warm up a bit, then I drive to work, 1 mile, and is shut back off. Then it makes a trip back at lunch, and then back to work, and then back home. So it's the epitome of start and stop, short trip mileage, which is about the worst case, so I want to see what mine is at, I think it said 179 miles on the trip, which is way short of where it would be if I was highway'ing it.

bricooper78
05-11-2013, 10:09 PM
I have already lost my receipt, but mine came out at 16.92 16.94 somewheres about there.

So you're in the ballpark man

Hanauer51
05-12-2013, 12:54 AM
I have already lost my receipt, but mine came out at 16.92 16.94 somewheres about there.

So you're in the ballpark man

I was sick of ****ty gas mileage (mostly in town driving), so I decided to go with premium when I was getting close to empty. Ehhh it cost me about 7 or so dollers more for premium. Now mind you this was pretty much ALL highway driving 4 and half hours round trip on fresh new timeken bearings; ended up getting 28.9 miles to the gallon. So, I don't know if it was the premium gas or the fact that it was all highway driving with cruise control set at 78MPH or so.

bricooper78
05-12-2013, 10:20 AM
Highway mileage is about 10mpg better, on my car anyway.. the post whore thread I kept posting them up one week, and it was just about 26.25mpg. I've seen high 31 once, not sure where that one tank came from tho lol but it was a few years back

[ChaosweaveR]
05-12-2013, 10:45 AM
These cars never did do good on gas. Mine averaged 23-24 at BEST. I was lucky to see 275 miles on a tank of fuel with my commute.

The Honda does double that. lol I'm averaging 35mpgs on the highway, last two tanks of fuel it did 408 miles and 395 miles. Huzzah!

bricooper78
05-12-2013, 12:45 PM
;attention lol



You sir, can suck it! :hay:

[ChaosweaveR]
05-12-2013, 03:18 PM
Then join the dark side and buy a 7th gen Accord.

JOIN THE DARK SIDE.

We have cookies and Vtec.

bricooper78
05-12-2013, 04:34 PM
I don't want car payments. I.R. Lame, I knows.

But hey, it's 7 mpg more than my truck

3800L67GAM
05-12-2013, 05:25 PM
I don't want car payments. I.R. Lame, I knows.

But hey, it's 7 mpg more than my truck

It's not worth the extra 5,000 dollar car payment a month lol

[ChaosweaveR]
05-12-2013, 06:11 PM
It is worth it when it's good on gas and has little maintenance costs. Plus, how broke are you that you can't afford a car payment?

bricooper78
05-12-2013, 09:13 PM
i dont want another, we pay 480 for the sorento already

[ChaosweaveR]
05-12-2013, 09:24 PM
Oh, I forgot you had another new car already.

ItsMeScottG
05-12-2013, 09:25 PM
I normally get about 220-230 per tank with my sedan but that's only because I drive in the city here in houston everyday. These numbers are also with me using my A/C on high setting almost all of the time because of the seriously Hot weather I experience everyday living here in Houston) When I drive highway I can get 320-350 or so per tank with this car though.

Where you drive really makes a difference.

bricooper78
05-12-2013, 10:05 PM
Chris, I figgerd you forgotted about that evil Kia already!!! Plus, I have money to dink with the vehicles this way, I could do a new car, but then I'd be where i was with the GA back when I bought it, took forever to build up cash to do anything to it. Kids are a wallet drain man, so are old antique-ish houses..


Scott=totally agree, mine is start and stop through town, 300 ft per block, so it's almost like driving in a yo-yo lol

3800L67GAM
05-26-2013, 11:08 PM
;1214350']It is worth it when it's good on gas and has little maintenance costs. Plus, how broke are you that you can't afford a car payment?

I just finish off paying on my maxima last year So who can't afford a car payment hmm