help! what gas mileage are you getting on your w211?
Hope this helps.
Last edited by MBNUT1; Jun 21, 2008 at 12:54 PM.
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For your car 29mpg on hwy is very impressive for a healthy V8
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Is a family member sneaking out with the car and stomping on it?

Is someone possibly syphoning fuel? (yeah, a long shot but you never know at 4 bucks a gallon!)
As for my E350, the best I've ever seen my car do was 34 mpg but usually it's about 30 mpg hwy. I like the fact that I can drive from LA to SF in a full tank of gas.
Last edited by NVR ENUF; Jun 21, 2008 at 11:23 PM.
rated at 66mph hway
keep your hway speed to 65 and you will see 22.
bump up tire pressure 6psi front and back.
stop jumping on it

You are running premium,aren't you?
ohlord

my 99 wagon is at 22/27.5 at 75mph
those 350's suck down a bit more fuel to gain that extra 40h.p.
37 psi on all 4 corners
all highway miles between 75 & 80 mph.
In comfort mode this weekend down the shore yesterday on the bottom of the tank of 91 octane: 27.1 MPG
Filled the tank up this am before coming home with 93 octane: 26.4 MPG for the trip home.
2 weeks ago, I was getting 19 mpg on the highway, and I was in need of front right wheel bearing replacement. (Repairs made last week) Your 19/highway doesn't sound kosher. Sorry, Bro...
Your Mileage will improve. Mine was nowhere near as good for the first 1500 or so miles; I broke mine in gently (drove it like an old lady) for the first 1000 miles, it loosened up after I started running her harder at the 1000 mile mark.
I would also check your tire pressure, I run tire pressure of 34 front/37 rear PSI cold, but check what your sticker inside the gas cap states for your car and try 1 PSI below the highest cold setting.
18-20 City
22-27 Highway
For me, my MPG matters on alot of vaiables:
1. Speed - stay at around 65 without pushing the accelerator to much going up hill and just cruise down hill (another words stay steady on the gas pedal).
2. Temperature - warmer weather always gives me 1 or 2 mpg's better
3. Highway traffic - staying behind cars to avoid driving directly into the wind (not too close
.)4. Tire Pressure - new tires from the dealer were mounted with 28 psi all around, lowered to 26 in front, 29/30 in back (per MB specs (downforce?).
5. Tire Brand - I've only had the factory Conti's on my benz, but my accord v6 got around 26 highway with Mich MXV4, but 23 with no name tires.
Do you happen to know what your car defaults to immediately after a reset?
This also confirms something that my sister's boyfriend told me recently. He has a V8 Mustang (not the current body style) and he insists that it gets better mileage than his previous V6 Mustang. His explanation is that he doens't have to work the car as hard or rev the engine as high for power.










