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#1
10-21-2005, 11:11 AM
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300TD Diesel Fuel Consumption
Recently I estimated my 300TD's Estate fuel consumption at 6-7l/100Km outside town.
Does anyone know how much this car's Diesel engine takes while city driving? The traffic here is pretty heavy and it seems that I might need another car for everyday driving. 
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#2
10-21-2005, 11:24 AM
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That mileage sounds too high. I calculated about 36 miles/gal (US), which is too high for a 300TD, especially in the city. I would expect closer to 25 mpg, at best, in the city.
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#3
10-21-2005, 11:30 AM
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What year 300TD are we talking about? I don't see it mentioned anywhere.
__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
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#4
10-21-2005, 01:02 PM
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I happen to have the Owner's Manual in front of me for my 84 300TD. It lists fuel consumption as the following:
Urban: 10.4l/100km or 27.2m.p. Imp. gal At 56mph: 8.0l/100km or 35.3 m.p. Imp. gal At 75mph: 10.9l/100km or 25.9 m.p. Imp. gal They list fuel consumption for the 4-speed manual and 5-speed manual non-turbo 300TDs too. The 5-speed is listed at 29.7mpg at 75mph vs the 4-speed at 27.2mpg at 75mph. The same car is listed at 25.7mpg at 75mph with the automatic transmission. -Tad
__________________
1995 G320 2003 C230 Kompressor Coupe 2005 ML500 2007 ML350
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#5
10-21-2005, 01:06 PM
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My 1981 wagon with 280,000 plus ( odo broken ).. got 27 miles per gallon from Elgin to Ft Worth going more than 75 mph. I filled up there, and at the same station back here (checked it each way )... I only gave $2000 for the car.. so no one was more surprised than I was... and I must say proud... LOL
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#6
10-21-2005, 01:15 PM
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Quote:
Urban: 10.4l/100km or 27.2m.p. Imp. gal = 22.7 mpg US At 56mph: 8.0l/100km or 35.3 m.p. Imp. gal = 29.4 mpg US At 75mph: 10.9l/100km or 25.9 m.p. Imp. gal = 21.6 mpg US Based on my 300D, these numbers sound reasonable to me.
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#7
10-21-2005, 01:20 PM
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Quote:
__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
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#8
10-21-2005, 01:27 PM
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Quote:
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#9
10-21-2005, 01:30 PM
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1984. At least it should be 1984. It came in the glove box for my 1983 300TDt. It covers the 200T, 230TE, 280TE, 240TD, 300TD and 300TDt. It doesn't have a date in it. It appears to have a lot of Euro information like the aux heater.
-Tad
__________________
1995 G320 2003 C230 Kompressor Coupe 2005 ML500 2007 ML350
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#10
10-21-2005, 02:12 PM
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Quote:
__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
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#11
10-21-2005, 02:25 PM
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Quote:
 He didn't say what year, but 36 mpg (US) sounds too high for any 300TD in city conditions.Edit: His profile says it's a 123.
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#12
11-08-2005, 02:37 PM
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Production year
My 300TD was manufactured in '79 and has a 617.912 diesel engine with a 4 speed manual gearbox.
It took 6l/100Km outside town (european roads) crusing at 70Km/h to 120Km/h and some 10% city driving. I measured that fuel usage on a 600Km trip 3 times (once was driven by someone else and got the same mileage). I haven't measured city fuel consumption yet and I'm asking because the conditions are horrible here during "rush hours" - usually I have to drive bumper to bumper for more than 32Km/20 miles. By the way, what would be the most economical/engine-friendly method of shifting gears on a 300TD (at which speed it's best to shift up to the 2nd, 3rd and 4th gear)?
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