Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

Closed Thread
LinkBack Thread Tools Display Modes
Old 10-11-1999, 04:15 PM
Posts: n/a
I have a '90 300se with about 200k miles on it. I change the oil every 5k miles but lately I have been noticing that the level of the engine oil has been decreasing at a rate of about 500ml every 5 weeks or so. Is this normal or should I do something about it?

Old 10-11-1999, 08:45 PM
Larry Delor's Avatar
What, Me Worry?
Join Date: Jun 1999
Location: Sarasota, Fl.
Posts: 3,114

How many miles do you put on in 5 weeks?

'83 300D
Old 10-12-1999, 08:16 AM
Posts: n/a
I put in roughly around 1500 miles in 5 weeks.
Old 10-13-1999, 12:05 AM
Larry Delor's Avatar
What, Me Worry?
Join Date: Jun 1999
Location: Sarasota, Fl.
Posts: 3,114

I was always told that using a quart of oil, in 1000mi or less, was considered "burning oil". So, it looks like you are inching your way towards that mark.
Of course, before thinking engine rebuild, you can externally check out the engine from top to bottom, just to make sure your not loosing your oil through leakage. Sometimes oil can get dragged long the chassis a ways before being flung to the ground.

btw I think that many owners (not neccessarily Benz owners) would be very happy to have an engine with 200k and using 1qt. of oil every 1500mi.

'83 300D

Old 10-13-1999, 01:16 AM
Robert W. Roe's Avatar
Registered User
Join Date: May 1999
Location: Lehigh Valley PA
Posts: 1,330
I think this series inline six had some problems with the valve guide seals or valve stem seals (?). Losing 500 ml every 1500 miles is about a quart every 3000 miles. Not bad, yet. My '77 300D was at a quart every 600 miles, but it could have been from a lot of oil leaks. If the car sat for a week or so without being run, the oil level still dropped.

Check your oil before and after long trips. That should indicate if you're losing oil though blowby. On my '77 300D I saw puffs of smoke if I removed the oil refill cap and then started the engine. Mine produced a cloud of smoke a couple feet high. Does this indicate blow-by?

Anyway, I later sold the car. It's still running, as far as I know, though the owner probably carries a jug of oil in the trunk

Robert W. Roe
1984 300SD 165,971 miles

[This message has been edited by Robert W. Roe (edited 10-13-1999).]

Closed Thread


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Oil Additives Bill Wood Mercedes-Benz Performance Paddock 6 08-24-2011 11:53 AM
UPDATE - 560SEL Oil Pressure - SUCCESS!! moedip Tech Help 5 10-06-2008 07:48 PM
Oil Change DIY Instructions Limited Edition Off-Topic Discussion 5 09-23-2007 11:56 AM
Demystifying Oil - General high-level info about oil haasman Tech Help 6 04-21-2004 03:28 AM

All times are GMT -4. The time now is 02:05 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page