My new Fuel economy record

[They call me godly]

rediculous the ss models get better gas mileage than base models wtf GM

Trust me no they don't haha, I got 42 MPG out of the SC because I drove perfectly at the speed limit which changes from 30-45-55-25 on the way to where I was going. Most of it was 25 MPH driving haha However in my friends LS, its simple to get that all the time, even when your on the gas decently. His is equipped with a shift light and all that and its pretty simple to get 40+ MPG out of it if you shift when it tells you to and obey the limits.

 

[cobalt123]

i guess that my problem i dont haha

 

[1WhiteSSTC]

i wish i could get even 20mpg

 

[ßlåçk§mókè]

last time i went to Winnipeg MB 9 hour drive i averaged high, got the intake.... foot got heavier

Im going to Edmonton in a few days, So i'll find out what my mileage is like..

 

[bryson87]

i drove it was a good 300 miles ill have to look it up and got 44mpg with a stage 2 kit. used right at 1/2 tank.

 

[cobalt123]

i just like to drive fast lol

 

[SportLt]

had to go out of town last yesterday.. i stayed between 39-42 mpgs

 

[Cobalt08ls]

sweeet

 

[The Other Andy]

Bump'n an old thread to continue it Just got 37mpg on the way home from work yesterday with my new-to-me 2010 automatic sedan. Got 34 on the way to work (uphill). I'm itching to see what I can do with a little more tire pressure.

 

[YelloEye]

Nice! Watch out for loss of traction when you've got em aired up.

 

[roosterk0031]

Nice thing about a Cobalts decent economy and can still break them loose with minimal effort, realy easy when wet, and rev out quite nice as well.

 

[The Other Andy]

Nice! Watch out for loss of traction when you've got em aired up.

Seemed pretty good when I drove it home. The dealership had all the tires well above 50psi.

That said, I have absolutely no inclination to have that rough a ride. My tires will likely go no more than 40psi.

 

[YelloEye]

Jeez, 50 is way overkill Lol

 

[roosterk0031]

Owning 5 car's(3 kids driving) I've decided 40 psi is easy to remember. But my harbor frieght chuck is off so often closer to 45 but the GM's the tell me the PSI. Had to patch a screw hole last night in daughters 2010 Lt, haven't heard from her yet today so it must be holding. Track meet till 10:00, patch tire tilll 11.

---------- Post added at 07:52 PM ---------- Previous post was at 07:14 PM ----------

Have a 09 xfe coupe, after over 100,000 miles,(130k on car) life time average is 39.7, if I wasn't running way high ethanol blends no doubt I could be over 40. I don't accelerate like grandpa 3k most shifts, but I coast into every stop sign or light, still orginal brake pads.

 

[The Other Andy]

Jeez, 50 is way overkill Lol

Yeah, dealership techs

Owning 5 car's(3 kids driving) I've decided 40 psi is easy to remember. But my harbor frieght chuck is off so often closer to 45 but the GM's the tell me the PSI. Had to patch a screw hole last night in daughters 2010 Lt, haven't heard from her yet today so it must be holding. Track meet till 10:00, patch tire tilll 11.

---------- Post added at 07:52 PM ---------- Previous post was at 07:14 PM ----------

Have a 09 xfe coupe, after over 100,000 miles,(130k on car) life time average is 39.7, if I wasn't running way high ethanol blends no doubt I could be over 40. I don't accelerate like grandpa 3k most shifts, but I coast into every stop sign or light, still orginal brake pads.

I saw your fleet under your name on Ecomodder.com.

40 should be a good number. I like being able to check tire pressure right on the computer.

What do you mean by "way high ethanol blends?" Can we run E85?

 

[roosterk0031]

Not supposed to, I'll blend my own, half E85 half E10 makes a E45 blend and won't get a CEL at that point, if you go too high on the E85 you'll get a CEL for engine thinking its running lean, but I don't think they really are. When I do that I just top off with some E0 and it goes away.

The HHR has basically the same engine and is FFV, it's all in the programing I think.

 

[The Other Andy]

Not supposed to, I'll blend my own, half E85 half E10 makes a E45 blend and won't get a CEL at that point, if you go too high on the E85 you'll get a CEL for engine thinking its running lean, but I don't think they really are. When I do that I just top off with some E0 and it goes away.

The HHR has basically the same engine and is FFV, it's all in the programing I think.

Hmm. Is there any particular reason for blending fuels like that?

The Taurus had an FFV with the same engine as the non-FFV. Iirc, the major differences were the fuel pump and some gaskets. Apparently the ethanol is hard on rubber or somesuch.

I'm honestly a bit surprised the Cobalt can't do E85. I had it in my head that Chevy had made the whole line FFV.

 

[roosterk0031]

$ per mile, last week drove the Impala to a track meet, cost per mile at 26 mpg on E85 is equal to 47 mpg on E0.

Read something the other day with the Buick Regal Turbo being FFV that put GM over 50% fleet wide, I think thats's models offered not sold. The 2.0 buick turbo, direct relative to the Cobalt SS, is the first direct injected turbo FFV. The base engine in the Malibu is a 2.5 the upgrade is the 2.0 turbo making around 270 hp.

With the price of E85 I'd have a hard time buying another non-FFV.