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#46
05-19-2012, 11:30 AM
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1991 350SDL, 355,000 kms. Dunlop SP9000 Tires at 32psi all round, haven't looked at my air filter in ages (changing it today), probably 60/40 hwy/city. No additives, EGR still connected, daily driving conditions (that includes traffic)
I get an astonishingly consistent 22 mpg. I've have once seen 26mpg, but it is quite amazing how I always seem to get 22. This is over 20+ tanks..... Quote:
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2015 GTI 1991 350SDL with a clean body and a bunch of miles. 1984 190D with an AMG 3.6 
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#47
06-01-2012, 12:22 PM
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OK, I'm ALMOST ready to post my figures.
I've got 4 fill ups in the car, I'm awaiting the 300ish miles to tick off for the last fill for the evaluation. I found a stretch of highway between stops, I went from mile marker 40 to mile marker 21, 24.9 and rolling to mile 43.9 and rolling... looks pretty much dead on to me, no?
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#48
06-01-2012, 12:29 PM
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My average is pretty low totaled over the 5 fills, when I first got the car, there was a LOT wrong. looks like mileage began around 26, dropped to 24 before I changed the oil, and filters, and cleaned out the banjo, and now it's climbing up towards 30... not there yet, but I'm doing a lot of mixed driving with a FULLY loaded down car here...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#49
06-01-2012, 12:37 PM
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Quote:
Mistake will not be repeated. Brian, is it discouraging to see how few can follow your rules? Mine is off the road currently for repaint, and odo, so no admissible figures, but if I may be allowed--I remember seeing 25-28 mpg pretty regularly. I keep speeds pretty much within the legal limits--so 65/70 is about the highway max. Your posted numbers seem reasonable based on my experience.
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1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags 
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#50
06-01-2012, 12:54 PM
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Quote:
I set the parameters so that the perpetual inaccuracies of the fill, the odometer, and the long highway trip can be eliminated. There was a method to the madness of the rules. Most won't comply. Their data can be dismissed.
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#51
06-01-2012, 12:56 PM
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Quote:
I also believe the extended use of Powerservice has a small benefit.
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#52
06-01-2012, 01:05 PM
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heh, I'm thinking of starting over with the logging... great another 1200ish miles before chiming in on this.
I'm using the car for WORK at the moment, and it's REALLY taking a pounding. wednesday, I had a 300lb compressor in the front seat, two 40lb R22 cylinders, 3 90lb nitrogen cylinders, 4 toolboxes full of tools, around 100lbs each... reclaimer, reclaim cylinder, vacuum pump... scale, parts, blah blah... and me and my brother... around 2000 lbs total I'd guess...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#53
06-01-2012, 01:23 PM
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Quote:
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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
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#54
06-01-2012, 01:30 PM
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Unfortunately, I do believe you'll now need to wait until early October to perform the challenge. Doing the tests under the load of the a/c compressor will defeat any achievements that you have accomplished. I would not bother with any data that is a/c compromised. I certainly could not attain 30 mpg with the a/c in operation.
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#55
06-01-2012, 01:30 PM
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...
wifey is driving one, the other is in the transmission shop... the rest of them don't drive... they just take up garage space...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#56
06-01-2012, 01:42 PM
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Quote:
and the strangest thing is, my best mileage numbers are from the tank with all the load in it... all these totals are with the windows 1/2 down, and the sunroof slightly to 1/2 open.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#57
06-18-2012, 05:07 PM
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Not a SD but since vstech posted his numbers, I guess I should chime in...
I've lost the actual log that I had when I was driving my 87dt daily, but the numbers were so consistent that I can post them with confidence: 167K, fresh fluids/filters, bb in EGR, 32-ish psi all around, WWII era tires, odometer checked with GPS, burping tank to the brim at every fueling. Mostly city driving, light throttle = 28-29 MPG.
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87 300D sedan rarity with the #14 death stamp SOLD
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#58
11-01-2012, 10:56 AM
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Posting more data from the SD now that the a/c is not utilized and prior to the arrival of the winter fuel:
Documented results: September 30: 17.16 gal. 545 miles October 9: 18.02 gal. 552 miles October 14: 14.77 gal. 456 miles October 25: 17.28 gal. 550 miles Total fuel: 67.23 gal. Total mileage: 2103 Fuel economy: 31.28
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#59
11-01-2012, 12:26 PM
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Fuelly is a lot more convenient and easy to follow than this thread. Its an excellent tool if you want to keep track of real world FE and compare to other cars.
Mercedes-Benz 300SD MPG Reports | Fuelly
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CENSORED due to not family friendly words 
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#60
11-01-2012, 12:40 PM
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27mpg on the 300SD. Hoping for 30 when the 2.47:1 goes in....
__________________
 Did you just pass my 740 at 200 kmh in a 300SD?????1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013 100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership 
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