It has been my experience that the oil level on the dip stick doesn't significantly drop after I've started and ran the car a bit. It sometimes takes a while for the oil to settle to the pan from the valve cover, but once I've given it that time, the level I see stays the same for a good long while.

It is possible that your oil sucker left a thick coating of oil in the dipstick tube and you are reading that oil coating the dipstick instead of the level in the pan. If this is the case, it should settle to the pan overnight and then you can get a decent reading.

It is also possible that you pumped out some other fluid (like maybe ATF) and added oil. Or even got fluids mixed around.

Either way, I wouldn't think of starting the car until I resolved the issue. If the engine oil really is that overfull, you'll probably cause damage of some sort when you start it. If it's overfull because some other fluid is now a gallon low, then you might cause damage there too.

It might be best to have a friend or nearby forum member stop by and help try to understand what happened.

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'83 300DTurbo http://badges.fuelly.com/images/smallsig-us/318559.png

Broadband: more lies faster.

As long as the oil you removed was black as coal you got the engine oil. Transmission fluid would have been reddish.

Yeah, I do know the difference between the oil stick and the tranny stick.

On another note, I was wondering what makes the oil in diesels so black? Technically, the oil isn't supposed to come into contact with the fuel, so it seems like it would have the same coloration as theoil in a vehicle which uses gasoline or any other fuel.

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" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles

22:1 compression vs 8 ish:1 compression... um, yeah, the exhaust makes it past the rings, and soot contaminates the oil VERY QUICKLY...

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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!

http://www.kc-synthetic-oil.com/synthetic-diesel-oil.html

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Chad
2006 Nissan Pathfinder LE
1998 Acura 3.0 CL
OBK#44
"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)

SOLD
1985 300TD - Red Dragon
1986 300SDL - Coda
1991 - 300TE
1995 - E320
1985 300CD - Gladys

Wow, 22:1! That's high. I knew diesels operated off of compression as opposed to ignition by spark, but I didn't know how high the compression ratio was.

Thanks.

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" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles

I'm glad to hear you know enough not to have made the obvious mistakes Didn't mean to insult your intelligence or anything. Your choice of task, tool and resulting question triggered the new-mechanic alert in my head, and I answered from that (incorrect) assumption -- I really hate to see new mechanics fail because it is often their last attempt as well as their first.

So.. have you figured out yet why you got the high reading?

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'83 300DTurbo http://badges.fuelly.com/images/smallsig-us/318559.png

Broadband: more lies faster.

Did you remove the oil filter before pumping? If the filter housing is not opened, the oil in the housing won't drain in the the crankcase.

If the suction line for the pump reaches to the bottom on the oil pan, you should be able to remove almost all the oil.

Here is a good oil change link.

http://www.dieselgiant.com/mercedesdieseloilchange.htm

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'83 300D 198,000mi Howard
'03 Saturn Vue CVT 75,000mi(wifeys)

Use only synthetic, Amsoil is clearly the best.

Lube her up good!

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

Why not a topsider? Why would anybody want to crawl around under the car? I put mine on, pump it up good, sit back and drink a cup 'o coffee, pump it some more, pull the filter, get the new one ready, pump some more (sometimes if I'm in a hurry I use the shop vac instead of the pump but I like the quiet of the hand pump). Once I head the slurping noise I know the topsider has done its job so I put it aside and start adding oil.
I usually add 4 quarts and check the stick. There shouldn't be anything on the stick at that point. I add another one and check again. Add and check add and check. I HATE realizing I've added too much. Made that mistake once on a truck in my youth (Dad said it held 7 quarts, it really held 6, smoked like a coal plant until that quart burnt off) and I don't want to repeat it.
I've changed the oil in my cars many many times over the last 5 years but that doesn't mean I can't make a mistake...

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Sadly Benz-less

I've noticed that with mine also so I keep it just above the low mark. Seems like the increased consumption is from leaking.

Any ideas why?

More blow by pressure due to less open space or . . . . . ?

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Charles
1983 300D, bought new, 215k+ miles, donated to Purple Hearts veterans charity but I have parts for sale: http://www.peachparts.com/shopforum/mercedes-benz-cars-sale/296386-fs-1-owner-83-mb-300d-turbo-rebuild-parts.html

Yes, it is important to change the oil to refresh it, but another reason is to get rid of the sediment in the oil pan as well. Small dust particles from the air and metal from the engine form part of the sediment. When changing oil it is important to make sure that the oil is hot (for flow properties) and drained out of the bottom so it can carry the sediment out with it. When the oil is pumped out through the dipstick tube the sediment remains behind, to mix nicely with the new oil and continue flowing through the engine.

Have you ever drained used oil out of the drain pan to see how much sediment is left behind? You may be surprised to find out how much comes out of the oil pan with the used oil.

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'98 E300 DT
'87 190D 2.5 turbo RIP
'92 S500 Sold
'03 3.2TL-S A-Spec

On a 603 powered car without the belly pans you don't need to get under the car to drain the oil. Just reach under with a 13mm open end wrench, the plug is right their. With the belly pans, screw it, suck it out.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

It not that hard to lay down, reach under the car and turn a wrench.