ah i love the fact that my 05 LS gets better gas mileage than that XFE

 

Turbo 2.2 2.4 people should be keeping an eye on the XFE people.

You want their final drive

 

I have also since corrected myself - per Chevorlet, every 2.2 5-speed ordered on or after March 17 of this year is "XFE". It was a mid-year update.

 

My car and a lot of other cars do that lol.

 

I just bought a 1LT Cobalt XFE three weeks ago. I drive 67 miles one way to work (all highway) and can make two trips on a tank of fuel. The DIC indicates I can make 3, but I am not going to chance it. With 3000 miles on the car already, the best I have seen is 36.1 mpg with the cruise set on 65 mph. Get over 65 mph and I may get 34 at best. The combined is about 32 mpg so far. My parents have a '08 Honda Civic with a automatic and it averages 37 on the highway. As far as power, it does Ok for 148 hp. To my understanding, the only change in the transmission was 5th gear. What I don't understand is that the XFE manual transmission is only available in the LS or the 1LT. I wanted the 2LT but it only comes with the automatic in '08. A co-worker that has a '07 Civic w a 5 speed, makes the same drive as me and claims he gets around 38 on his. I looked at the Civics, but decided to buy American. I'll give it about 3000 more miles and switch to synthetic. That should help some. Thanks - 08cobalt1lt

 

3mpgs!?! That's some X-treme Fuel Efficiency right there...

Oh no no no...the stage 3 just disables your A/C altogether.

 

The difference in the trans is the final drive ratio of 3.73

It makes all the gears longer.

 

i have an xfe, the thing rips compared to a civic and around town in maine, which means up hill alot, lots of stop signs and a butt load of bad roads im averaging 35 mpg, high way i will probably see 40mpg

 

I just got my XFE last week, and I drive 110 miles round-trip to work everyday and first week completely stock Im getting 37 mpg. I put an Injen intake on yesterday, hopefully with some x-treme granny action I can go 40mpg...

p.s. I've been telling people XFE stands for Xtremely Fast Ecotec...lol

 

^ lets not get the 2.2's made fun of any more than we already are please

 

I have a 2008 LT I bought in June.. 2.2.. i dont think its an XFE... im gettin great milage.

 

nice. hopefully GM doesn't stop there though. if these other companies are taking notice it should make for an interesting market for the next few years


this feature is not new on the cobalts.

 

why are they dumping the 2.4 in 2009?

 

I thought XFE comes with different tires also then previous LT's?

 

uhh did i miss something? wth's a xfe ? ..obviously a 2.2 from the first couple posts but why's it called an xfe?

 

my gas mileage sucks, i get 28avg city and highway, the best highway i can get is 29...and i do reg maitanence, i change my oil every 3k, fuel filter every 15k, spark plugs @20k...currently have 32,000 miles on mine...i remember i used to be able to get 33 city...those were the days, i want that mileage back...

 

XFE = Xtreme Fuel Efficiency
pretty much is just tires from what I was told... nothing motor wise was done to it... just tires

 

I bought my non-XFE 2.2L 5-speed in April - I average about 36 highway and 30 city. Since mine was manufactured in December, it is definitely not an XFE as they started to be manufactured in mid-March - but it sure gets the MPG like an XFE.

 

XFE gets 36mpg on the highway? My 06 LS gets 38 on the highway with the AC on. I average 34 mpg (mostly city with some highway) with the AC on and 36 mpg with the AC off. I think all Cobalts are selling fast now. I want a lightened 2.2 Camaro. I read Chevys next small car is going to have a 1.4turbo.

 

put air in your tires....

 

stg II and other perf mods on my SS and I get 37 on the highway. And yes, the a/c kicking off on WOT is nothing new at all, mine does it. I well probably get alot better mileage once I get tuned up alittle. When I had my '07 LS I got close to 40 on the hwy so xfe= whatever

 

Final drive ratio is higher on the XFE.

 

Try getting 9 MPG.

 

with HPtuners you can actually change when the A/C turns off, i have mine set to turn off at 70% throttle, i think stock is 95%?

 

so if this is the same 2.2 as the 07+ then the mods should pretty much carry over right? im looking to get one...