Im curious, because i bought my LHS a few weeks ago, and am getting an average of 12.2MPG as of 5 minutes ago when i ran out and checked. Im burning 93 premium in the car.

mine read 19mpg for the ten hours it ran after I bought it... theyre supposed to get 21/26, so I wasnt too worried... I would however be worried about 12.2, check your codes, maybe the o2 sensors are harming your gas mileage...

I believe I have a plugged catalytic convertor (sulfur smell) and/or blown O2 sensors, so right now I am lucky to get any more than about 10mpg in city and 19 on the highway. :(

When the car was in a great state of tune I would get 19 in city and 28-30 on the highway.

yah, my intrepid has bad o2 sensors so if I get 13mpg, I'm happy.

Thanks. Anything i can do at home to diagnose the problem, if it is an O2 sensor, or must I take it to a service center.

http://www.dodgeintrepid.net/forums/showthread.php?s=&threadid=9477


look for check engine light and code 21

Hmmm, I did that and it went straight to code 55, which is a completion of fault code readout. Im lost.

Just to be sure you are not getting readings from previous miles. Reset you Avg first.
I have a 94 LHS 3.5 and straight highway returns 26-30mpg.
Combined is low 20's.
It's pretty common to see mid teens during regular use.
Our regular use is my wife driving 7 blocks to my son's school and just a few miles to the grocery store. Idling with AC or heat smokes the Avg mpg also.

My 95 LHS will get 26 and up on the highway depending how hard I push it. I found that the OTIS understated the mileage by 2%. I was impressed.

FredB

Heat takes away from MPG?? Umm.. I dunno about that.. anyone agree? A/C,Defroster yes, heat??? Maybe I'm just taking what you said the wrong way jfsram.

Since I've gotten it i have been only putting urban miles on it, and the heat has been on constantly. Today my average was at 12.6
Im going to reset it tomorrow morning(I think i did when i bought it, but im not sure)

By the way, thanks for all the help everyones given me so far. I took it to an AutoZone today because they have a 'free computer analysis" but all they do is the same thing i did, so i was outta luck.

Paul,,
No heat does not take away from MPG. Maybe a tiny, tiny fraction since the heater fan is loading the alternator slightly.

My reply which was not specific meant my wife idling the car in the driveway to warm it up for the kids. And idling without driving really kills MPG.

We've had the '96 LHS for a little over a week and the combined MPG reads 22. That's for about an even mix of 65 MPH and stop & go including shuffling cars into and out of garage (0MPG).

If i am doing city driving, ill be lucky to go past 18 average MPG for the tank.

However if I do highway driving, i can easily break the 22-25 barrier.

DjPill,

I really really like your avatar. Where can I get it? I belong to several international forums and I would like to use the same avatar you have on those forums, not this one.

Thanks.

I cut it out from a World Trade Center photo.

Thanks. Got it!