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Old 11-08-2001, 11:15 AM
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Join Date: Apr 2001
Location: Washington, DC
Posts: 223
I do Mobil 1 and less than 3000 miles on both my C43 AMG and my daughter's 420SEL.
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Old 11-08-2001, 11:22 AM
G-Benz's Avatar
Razorback Soccer Dad
Join Date: Apr 2001
Location: Dallas/Fort-Worth
Posts: 5,711
I change the oil after every tankful of gas...guess I've got a pretty bad leak!:p (just kidding)
2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car
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Old 11-08-2001, 12:11 PM
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backwoods member
Join Date: Feb 2001
Location: In the fog
Posts: 2,862
The previous owner of my 400 changed the oil every 3,000 kilometers (or about 1,900 miles)! I use Mobil 1 and change it at 4,000 mile intervals. Same as the ML…

David: You make a valid point about the effect of used oil on the environment. Larry B in part refutes that. Even so, in the broader issue, you are entirely correct. Used oil does have a negative impact on the environment. But so do the 300 + million vehicles in America, the billions of gallons of fuel burnt, and permitted to evaporate into the air, and everything else that goes to maintaining a culture, down to the methane created by organic waste of every type.

The sad but true fact is that even by the most diligent of individual efforts little difference will be made in any measurable way. Unless we as a culture decide to forego with a whole lot of “conveniences” that we consider to be “necessities” that a few more or less gallons of oil, or even a few million more or les gallons of oil will make little if any difference.

As example, someone that lives in a cold part of the planet, will use more fuel and waste more energy heating their house per winter than you and I and many of our best friends will ever use changing engine oil. Should those folks move because they are wasting energy? Sure. If they did, would it make a difference? Absolutely! Will they? Not a chance.

Right or wrong, in our culture, and most of the world over there is a thing called economic determinism: Generally that means, if you can afford it, you do it. Without remorse.

So while you are entirely correct that frequent oil changes are wasteful and hurtful for the ecology, it does not even amount to a drop in the proverbial bucket of the waste that takes place. Yes you should and have to start someplace to help our planet, but doing so in a half thought out way is nothing but functionally useless symbolism.

I wish it weren’t so. Sigh…..

'00 ML320 "Casper"
'92 400E "Stella"
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Old 11-08-2001, 12:56 PM
Posts: n/a
I enjoyed this thread very much.

I shall now exit the thread before my inferior intelligence is brought even closer to everyone's attention.

Viya con dios,
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Old 11-08-2001, 01:16 PM
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Senior Member
Join Date: Apr 2000
Location: So. Cal
Posts: 4,430
Every 3K on all the cars. Even at that mileage, you can smell the build-up of fuel that has slipped past the rings. Not a strong gasoline smell, but there nonetheless.

This last oil change on the Suburban I opted to go with the Castrol Syntec Blend. We'll see how the semi-syn oil does on the 7.4L at 120K miles. Had no leaks before the switch, and at almost 1K since, no leaks showing. In a few changes I might opt for fully synthetic.
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon least its a diesel

Non illegitemae carborundum.
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Old 11-08-2001, 02:56 PM
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Join Date: Oct 2001
Location: Atlanta Ga
Posts: 281
Well, I've got a couple of 71 250C's and a 1986 560SEL w/215k and it and the others get the TLC oil change from me every 2.5k miles and none of them (nor my 220D) burn any oil but I use Castrol.Now that I'm hearing all of you guys, I'm damn near ready to switch to Mobil 1...what's the deal with Mobil 1 and exactly what blend is it? Synthetic or what? Guess we're ALL fanatics but we won't be fanatic about having to buy another engine!
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Old 11-08-2001, 03:56 PM
jcd jcd is offline
village idiot
Join Date: Jun 2001
Location: Northern New Jersey
Posts: 1,102
Every 3000 Miles

On both my 300D and Nissan Van. On the 300D, this means once a month and I do so joyfully.

Andy Day,

What does a quart of oil go for in the UAE
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Old 11-08-2001, 04:09 PM
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Join Date: Jul 2000
Location: Toronto, CANADA
Posts: 1,193
I change my oil every 2500km which is about 1500 miles. This works out to about 6 times a year.
Jason Priest
1999 E430
1995 E420 - retired
1986 420SEL - retired
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Old 11-08-2001, 08:47 PM
David C Klasse's Avatar
CheFrac is Back!
Join Date: Jan 2001
Location: Mission Hills in the City of San Diego
Posts: 2,352
I change my filter at every oil change, and I change the oil (in the C280) at just about 3,000 miles if I'm using Dino oil. But if I'm using synthetic, I will go to about 4,500-5,200 miles (roughly) before a change.

I changed over to synthetic at about 100,000 miles and I didn't have any leaks. But my last oil change they used Dino because I took it in... What do you guys think of going back and forth?
(I'm sure it's totally fine.)
2006 E350 w/ 155k miles (Daily Driver)

1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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Old 11-08-2001, 10:34 PM
Southern's Avatar
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Join Date: Jan 2000
Location: Carol Stream, Il, USA
Posts: 605

Mobil 1 is a full synthetic oil and is "endorsed" by MB. I use Mobil 1 in my Chevy van and Mercedes. I still use dyno oil in the Honda. All of my engines run like new. I have noticed that the engines which use Mobil 1 seem to run smoother. I havn't checked myself, but I have heard that synthetic oil can improve your gas milage.

David C Klasse,

The synthetic oils that I have seen state that they are fully compatable with non-synthetic oil. You shouldn't have any problems going back and forth as long as you change it often.
1998 Mercedes E320, 200K Miles
2001 Acura 3.2TL, 178K Miles
1992 Chevy Astro, 205K Miles
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Old 11-09-2001, 11:21 AM
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Join Date: Jul 1999
Location: Youngstown, OH
Posts: 150
Here's something wierd I do. I change the oil every 3333.33 miles. Then I don't have to compute when my next/last oil change is/was. Whenever the odometer reads xx3333 or xx6666 or xx9999 I know it's time to change.

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Old 11-09-2001, 11:52 AM
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Join Date: Oct 2001
Location: Seattle Area
Posts: 373
oil changes....

Every 6-6,5000 miles with a filter change in the middle. With the quality of todays motor oil - especically synthetics as Mobil 1, keeping the oil clean is a much greater concern than thermal breakdown imho. I think Mobil even says something like 10kmi+ change intervals are fine for light-service engines. Now, I'm not quite that brave yet , but with the ammount of R&D that Mobil puts into testing, I'm sure they're right.

I think the taxi-test 400E cited says alot. This is just an area where each individual's comfort level is the greater determining factor of oil-change intervals than is actual research findings/scientific study. And why shouldn't it be? If it makes you happy - your car probably won't complain either!

- Ryan
'77 300D 218kmi
Mobil 1

Oh - and great idea intruder! Don't know why I never thought of that before - duh!
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Old 11-09-2001, 12:33 PM
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Join Date: Oct 2001
Posts: 226
I've seen my dealer take out the oil with the vacuum also. What's the best method to getting the most used oil out? Draining or Vacuuming? And will elevating only the front end of the car while draining leave a lot of old oil? Or should I bring the car down level as it drains? Anal, yes. But it seems changing the oil is important but I would think removing as much of the old oil would be important in doing it right.
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Old 11-09-2001, 12:42 PM
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Join Date: Jul 2001
Location: Western Michigan
Posts: 1,080
Some people have done the test and they concluded that vacuuming takes out more oil due to the design of the MB sump.

Here is how they did the test:

1. Vacuuming out the oil.

2. Pull the drain plug.

3. They did not see any oil coming out of the drain plug.
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Old 11-09-2001, 02:13 PM
apb apb is offline
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Join Date: Mar 2001
Location: Houston, Texas
Posts: 447
I vacuumed and then pulled the plug on my M119 engine and about half a quart still came out . . .
I may have a unique situation, but I choose to do both to get everything out.
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