R-Class (W251) Produced 2006-2013: R320CDI, R350, R420CDI, R500

R320 EPA (MPG)

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Old 04-16-2008, 05:49 PM
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R320 EPA (MPG)

Just wondering what MPG you guys have been getting on your R's. I am getting about 22MPG with mostly city driving. I have not been able to take it on the highway yet so I do not know how well it will do with Highway driving. I have just heard stories of people getting a lot better MPG on their R320 CDI's. Thanks
Old 04-16-2008, 08:28 PM
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2007 R320 CDI
Since I've had it (a few months), I've been averaging 11.2L/100km combined (21 mpg US / 25 mpg Imp) - mostly city driving

Best I've achieved is 8.4 L/100km on highway (28 mpg US / 34 mpg Imp)

Around town, often in the 12L/100km range (19 mpg US / 23.5 mpg Imp)

I expect mileage will improve in the summer.
Old 04-17-2008, 12:20 AM
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His 2019 RAM Cummins Turbo Diesel Laramie; Her's 2007 ML320 CDI P3; Mine BMW R1200R
Just to compare,

I know I am not in an R, but my ML CDI will give about 26MPG on the highway at 70-75 MPH. If I slow down to 55MPH, outside temp above 50 degrees F, and get no traffic, I have seen 30.4 very often. The R seems more aerodynamic, so you should do better unless heavier.
Old 04-17-2008, 01:49 PM
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R 320 CDI on 20" Mandrus Milleniums
i got 36mpg once.

love the car

my average is somewhere between 20-25. it's about 50:50 with city/highway
Old 04-17-2008, 03:36 PM
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2006 R500, 2002 996TT
Those number make me want a CDI!
Old 04-18-2008, 09:16 PM
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2007 R320 CDI
Originally Posted by XRX
Those number make me want a CDI!
What do you get in your 500?
Old 04-19-2008, 01:09 AM
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2006 R500, 2002 996TT
Originally Posted by rpringle
What do you get in your 500?
~ 18-20L/100km, all city drive
Old 04-19-2008, 10:52 PM
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2007 R320 CDI
Originally Posted by XRX
~ 18-20L/100km, all city drive
Ouch. Glad I went with the 320!
Old 04-20-2008, 12:47 AM
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2008 R350 & 2008 C300
Originally Posted by dgiturbo
I know I am not in an R, but my ML CDI will give about 26MPG on the highway at 70-75 MPH. If I slow down to 55MPH, outside temp above 50 degrees F, and get no traffic, I have seen 30.4 very often. The R seems more aerodynamic, so you should do better unless heavier.
I can get 26mpg out of my R350...but I haven't seen 30mpg lol!

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