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LH Performance Modification Discussions
 #347066  by rebzw1989
 July 2nd, 2015, 9:24 am
Okay so with gas being $2.67-$2.79
What is everyone else getting on gas mileage on a full tank?
Because I'm only getting 280-304 per tank of gas
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 #347069  by adu1982
 July 2nd, 2015, 10:39 am
Sounds about right to me. Maybe 310-320 (around 19-21 mpg) if i baby it all the way . Got new ngk spark, new front o2s, clean tb , new fuel injector orings and new fuel pipe ..

My LHs however gets 22-25 (so about 300+ on the low side) same driving.

Must be the M being a special i guess....
 #347071  by rebzw1989
 July 2nd, 2015, 10:50 am
It's just a pain in the rear..because I hate filling my car up twice a week
 #347111  by vincom
 July 3rd, 2015, 9:12 am
At about 70% highway in the summer I get about 600km=372miles per tank
 #347116  by tm24fan8
 July 3rd, 2015, 2:32 pm
We've seemed to average about 20-22mpg on our '02 300M base.
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 #347140  by Maximus
 July 4th, 2015, 5:21 am
I'm strictly driving back and forth to work these days 10 miles a day and I only get 16 so your doing good.
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 #347145  by Null
 July 4th, 2015, 6:36 am
I consistently see 20mpg. if im driving with a heavy foot maybe 19. If its all hwy 22
 #347514  by skinnyg
 July 12th, 2015, 12:05 pm
I get 20-21 but I have a 3.5 HO
ThaJuggla817 liked this
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 #347517  by KxWarrior
 July 12th, 2015, 1:07 pm
I average about 20 mpg, it's about 80% City / 20% Highway though.
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 #347550  by mnitetrain
 July 13th, 2015, 3:18 am
411 miles to Harrisburg took 14.717 gals=27.9 MPG best I've seen on this car.

Bob did some of his magic at Carlisle I forgot to check return MPG when I got home, will check in afternoon but I did finger the EVIC in CT and saw 29. Finally getting MPG approaching what my million mile 01 was doing.

Upper and lower 02 sensors (4) were replaced about 5 weeks ago, that also might of helped.
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 #347575  by Adrian63
 July 13th, 2015, 12:44 pm
when got mine (in really bad shape) and had to get it home from 500km/312 miles away.It did 9l/100km (thats @30mpg).Thing is I drove it at 80km/h.Maybe the thingy that counts the mileage is not working right but I kept it at under 2000rpm when possible.It took me almost a day to get it home.Had to do that since it had other problems ...problems which made me make this account here :?
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 #347740  by adu1982
 July 15th, 2015, 2:26 pm
I think at 50mph (80kn/h)....30mpg is about standard .... Maybe a bit more like 31-32 when new o2 sensors,sparks etc...
 #369184  by TrepKing95
 August 28th, 2017, 5:21 pm
I recently drove back home to Northern Virginia from Durham, North Carolina; and I averaged about 32.5mpg at 70MPH (cruise set for the whole trip)... used just under 1/2 tank for the 220mi trip.
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 #369185  by adu1982
 August 28th, 2017, 5:32 pm
3.2 or 2.7 ? Cause it sounds too good for a 3.5

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