Indeed it does.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

I get about 26 mpg on biodiesel and 25 mpg on wvo. Last tank of bio lasted 1750 miles. Worst was a trip out to Colorado. I got about 20mpg because i had 2 full tanks and 28gals of extra fuel in the trunk. Still did pretty good in the mountains. I could hold 65mph goin up hill. The weight and the front of the car sticking up in the air killed my milage. Only had to burn 3/4's of a bio/d2 tank though.
The best iv'e seen is 29 mpg coming back from Tahoe to SF.

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VegStew
1983 300SD 70,000 WVO Powered miles
1990 300D In driveway with Head Off - Cracked

Ive recorded 21 mpg, but i could do better, maybe 22 23. Kind of sucks. Im not putting out black smoke or anything so theres no wasted fuel. And its a low mileage car. I tend to drive it a little hard i guess, but nomore than anyone else here. The car is fast for a 85 300d, maybe that has something to do with it guzzling the fuel. Im going to rig up a 1 gallon jug under my hood asap so I can see what my real mileage is. ill just drive around the neighborhoods for awhile until the fuel runs out, then well see for sure. That will show me my city mileage

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1981 300SD 512k OM603

I don't know what you folks are doing wrong,
but I get 45 city and 50 highway......just like the
cars on fleabay

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81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

82 mercedes 300 SD...mi Unknown
83 Mercedes 300D ????ksniff..gone too
84 Mercedes 300D 148k........SOLD
85 Mercedes 300TD 386k and holding some one elses project

I get about 22 in the 240D these days. I think it could use some injector work, and I know I have a small fuel leak at the filter. And I don't drive gently. The 300 has been getting 26-27 on winter fuel.

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 401,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 26,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
99 Mazda Miata 183,xxx miles.

300cd Non turbo, 25mpg on the highway, 21 in the city, I have never gotten less than 21mpg. Recently timed the injection pump and put in better injectors. Could probably fuel something from the 80's-90's with a v8 for the same money fuel costs for my car.

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1980 240d
1999 SL500

How many people are calculating for resized tires?

http://www.dakota-truck.net/TIRECALC/tirecalc.html

My guess is that most people are running oversized tires which should actually decrease odometer based mileage (small percentage but not insignificant... could definitely correlate to 1 mpg or more).

Based on this, I'm surprised that we don't see more numbers below 25mpg. Perhaps there is some pride in getting better mileage that stretches the truth...

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1985 MBZ 300DT
1969 MBZ 220d
1984 MBZ 300TDT
1981 VW Vanagon

This one is much more easy to use.
http://www.miata.net/garage/tirecalcold.html

How many have verified their odometers are accurate? Has anyone checked their mpg with a GPS?

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1987 300TD 309, xxx 2.8.2014 10,000 mile OCI


Be careful of the toes you step on today, as they may be connected to the ass you have to kiss tomorrow. anonymous

“Be who you are and say what you feel, because those who mind don’t matter, and those who matter won’t mind.” Dr. Seuss

I normally get 22-24 from my 300D, but then it's got 326K on the original engine. Best ever was 25.5, worst was 19, fully loaded, 70 MPH into a 20MPH headwind.

The SD, bought at 300,000+ didn't get better than 21, it's down with a bad #3 cylinder (200PSI) and a knock- and I just haven't had time to pull the head to see what's going on.

No doubt a fresh engine in either car would help mielage a great deal.

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Nate Stanley
(Currently Benzless)
1985 F-250 6.9l 170K
2009 SCION XB 36.5K
2003 LS430 78K
2012 Kubota B 2320

I like that one also, however since similar model tires from different manufacturers are actually different sizes at the very least a GPS test should be done to confirm an odometer differential... Preferably the odometer should be checked against a measured distance such as at least 10 miles of measured highway...

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Joe

1998 E300D turbo 240K + Miles
2000 Dodge Dakota 122K + Miles
1992 Mazda Miata Autocross Machine 143K + Miles
http://www.renegademiata.net

Any man who is under 30, and is not a liberal, has no heart; and any man who is over 30, and is not a conservative, has no brains. - Winston Churchill

OM617 - 27mpg

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1963 Ford F100 - Cummins Swap?
1985 Mercedes 300SD - 210K
1992 Ford Festiva - 92K
2001 Ninja 250 - 8K

It would depend on wether it was summer or winter for me. The winter diesel they sell here was crap. I'd generally average between 28 to 30mpg on it and it would rise to 30 to 32 on average during the summer. That was with a 4 speed stick shift OM616 240D that sadly is no more. I verified it as accurate because it was my commuter and I knew my two routes which I never varied. Not much difference between freeway and city actually, but then I usually kept it under 70mph on the freeway.

- Peter.

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2021 Chevrolet Spark
Formerly...
2000 GMC Sonoma
1981 240D 4spd stick. 347000 miles. Deceased Feb 14 2021
2002 Kia Rio. Worst crap on four wheels
1981 240D 4spd stick. 389000 miles.
1984 123 200
1979 116 280S
1972 Cadillac Sedan DeVille
1971 108 280S

240D w/ 5 speed. 32 or 33 mpg consistantly. ODO is within 5%.

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Palangi

2004 C240 Wagon 203.261 Baby Benz
2008 ML320 CDI Highway Cruiser
2006 Toyota Prius, Saving the Planet @ 48 mpg
2000 F-150, Destroying the Planet @ 20 mpg



TRUMP .......... WHITEHOUSE
HILLARY .........JAILHOUSE
BERNIE .......... NUTHOUSE
0BAMA .......... OUTHOUSE

1985 300D Cali - 20mpg