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#1
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How much fuel consumption of OM617 at Idle?
Does anybody know what the gallons/hr consumption of an OM617 Turbo is at idle? Just wondering about it for this winter and over whether it's worth it to let car idle at short stops, etc versus shutting off and wearing out the pain-to-change starter.....
Plus, I just think it would be cool. specs with AC off would be preferrable as that is what most idling is done in my car, just parking lights on.....
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-Matt EPA Section 609 Certified MVAC Technician ----------------- Oil Burner Kartel Member #10 Ahh the smell of Diesel Fuel, it's like coffee in the morning! My Car: 1982 300SD Turbo Diesel (231,500 miles!) RIP 1984 300SD Turbo Diesel Custom (235,500 mi on driveline.) - On Road!! www.icsrepair.com |
#2
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I don't know the exact numbers but don't diesels use way less fuel while idling than gassers? You can hook the supply and return lines up to a half gallon milk jug or something like that and see how long it takes it to empty the container.
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Seth 1984 300D 225K 1985 300D Donor body 1985 300D Turbo 165K. Totaled. Donor Engine. It runs!!! 1980 300SD 311K My New Baby. 1979 BMW 633csi 62K+++? Dead odo |
#3
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I don't know the number either, but it doesn't use much. I tend to leave mine running if it's only a few minutes. I wouldn't bother leaving it running very long times unless it was -10 F without a block heater. |
#4
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Fuel consumption is supposedly very low at idle, although I've never measured it either. There are threads in this forum in which people in cold climates write about letting their diesel M-B idle while they go shopping or even work all day. In situations where it's extremely cold and the car has to sit out in a parking lot, it's the only way to go.
Even when it's not cold, I sometimes leave the engine on while I run a short errand. I carry a spare key for just such situations.
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#5
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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) |
#6
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My guess is the fuel consumption will be approx. .35 gallons per hour.
I have not measured it. |
#7
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When I left my car idling off a half gallon jug that was about half full....I came back after 25 mins at it hadn't even used half of that yet....so that'd be less than 16 oz of fuel in a 20-25 min span. or roughly 40oz an hour is my guess, and with 128oz in a gallon, thats right around .29 to .32 gallons per hour...so I agree with your estimate... It depends on what load is on the engine, eletrical goodies and A/C on would probably increase it quite a bit, and removing all belts except one for the waterpump/cooling fan would probably increase it slightly. Our minivan probably uses just over 1.5 gallons PER HOUR. We idled it for about an hour before for electrical power (inverter) and the thing drank over a gallon. That means even with a full to the brim tank (21gallons) it'd barely run for a day! Our diesels could probably idle over 3! Pretty sad considering they're both 3.0 liter engines, and the gasser one is "far newer and supposedly more sophistocated" Sure it is...
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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) |
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