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  #1  
Old 03-07-2007, 08:23 PM
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what is your Diesel's MPG nowadays...

I am getting from 26-28 with my 300cdt (220K miles). Anybody getting better, and what are you doing to improve.....
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  #2  
Old 03-07-2007, 08:41 PM
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mmmmmm Diesel...
 
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I'm only getting 22-24. It was 26-28 until ULSD came out.
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  #3  
Old 03-07-2007, 09:00 PM
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Quote:
Originally Posted by spugeddy View Post
I am getting from 26-28 with my 300cdt (220K miles). Anybody getting better, and what are you doing to improve.....
Just clocked mine over 400 miles of "city" driving, and it's right over 25mpg...
Over all pretty impressive for a 4800lb car.
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  #4  
Old 03-07-2007, 09:09 PM
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i was getting around 27mpg. but that was before i adjust the idle and rack damp. pin. right now i have B100 in it, so ill check by the end of the week i think .
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  #5  
Old 03-07-2007, 09:33 PM
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I was getting 26-27 but now I am getting 22-24 not sure why. I wonder if this low sulphur stuff is doing it. How would I test this? I would really love to breach 30mpg suggestions? (I have a 76 300d)
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  #6  
Old 03-07-2007, 09:35 PM
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i'm getting close to 30mpg, slight drop on winter diesel!, i'll take that, cosidering its a 25 year old 2 ton car
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  #7  
Old 03-07-2007, 09:40 PM
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1981 Mercedes-Benz 300SD
 
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Probably way down, since I turned my ALDA all the way up, switched to home made biodiesel
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  #8  
Old 03-07-2007, 09:42 PM
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just did a road trip (in 84)and was getting about 25 highway, keeping it at 30-3200 rpm.I have been using cetane boost and 2 cycle oil in the other ( 83)one to boost mpg....about 27mpg combined
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  #9  
Old 03-07-2007, 09:50 PM
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Mine was at 30 for 1/2 city and 1/2 freeway driving.
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  #10  
Old 03-07-2007, 09:50 PM
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My mileage has dropped to around 42mpg. VW diesel Caddy 1.6NA 4spd.

20-24mpg in the 1 ton dodge cummins.

Haven't driven any of the MBs diesels far enough lately to check then but I've always averaged around 27mpg from a 617 powered W126.
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  #11  
Old 03-07-2007, 10:00 PM
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600 miles a week, 1/2 at 80mph, 1/2 at 20mph. Getting 31mpg on D2 and 28mpg on B99.
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  #12  
Old 03-07-2007, 10:04 PM
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I've been getting about 26-27 mostly highway driving.
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  #13  
Old 03-07-2007, 10:13 PM
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average 29 mostly highway

240d 4 speed manual

Bob
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  #14  
Old 03-07-2007, 10:25 PM
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Between 22-24 with my ALDA maxed out. I won't really check it again till it gets cold in the fall because I've got my two tank wvo system up and running again (burned out the fuel pump) and I blend about half bio at my house with half pump diesel. When it gets warm I'll run straight bio in the main tank but most of the time I'll run off my aux wvo tank.

In the fall, or if I go on a road trip this summer, I'm going to turn my ALDA back down a turn or two to see if I get better mileage.
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  #15  
Old 03-07-2007, 10:57 PM
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Mix of city and highway 30. Theoretically, if I were going at 85mph with cruise control, I would get 33 mpg
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