Regular ATF works great in a Mercedes manual transmission.
If an engine is using little oil up to a point (5000 miles in your case)
then consumption increases beyond that point, the additives that modify
viscosity at higher temperatures have worn out. In other words, your 10W40
weight oil is now 10W?? weight oil and you need to change your oil at or
before 5000 miles.
If you are using straight weight oil then you have a problem with fuel
getting into and diluting the oil. Straight weight oil tends to thicken over
time.
I got into oil testing a number of years ago. I found out that Dino oil is
fine past 5000 miles, at least for my style of driving. I even ran one of my
300E's to 50,000 miles with the same Mobil 1 oil and it tested fine. I
settled on Dino diesel oil in the diesel with a 5000 mile change interval
and Mobil 1 in all of my gassers with a 10,000 mile change interval.
Thanks,
Tom Hargrave
www.kegkits.com
256-656-1924
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Robert Bigham
Sent: Sunday, October 21, 2007 7:07 AM
To: mercedes@okiebenz.com; [EMAIL PROTECTED]
Subject: Re: [MBZ] Mercedes transmission oil, was King pin grease
Mon, 15 Oct 2007 23:00:25 -0700
From: Jim Cathey [EMAIL PROTECTED]
Subject: Re: [MBZ] King pin Grease
Robert Bigham [EMAIL PROTECTED] wrote
(problem with using 80/90 EP gear oil in Mercedes manual
transmissions is) Not well known to me. There are many
things I have never heard of, and that is just one of them.
Please tell me more, as I would like to know about this situation.
Jim Cathey wrote
As some on these mailing lists have found out the hard way, the
syncro metal in the manual transmissions is susceptible to being
attacked by one of the additives in regular gear oil that helps
heavy steel gears hold up under extreme loading. Phosphorus?
Anyway, lots of cars use gear oil in the tranny, but not these.
They want ATF, and not just because of the lighter weight.
I have not personally had the problem, nor do I want to!
-- Jim
Hello Jim
Friday I took the time to look in my owner's manual.
I found that manual transmissions need automatic transmission fluid
for manual transmissions and that my automatic transmission needs
automatic transmission fluid for automatic transmissions.
In either case, any Mercedes dealer can advise on the proper fluid,
or words to that effect.
Clearly, 80/90 EP gear oil is not the right stuff for Mercedes manual
transmissions. It's still not clear to me what is the right stuff.
Fortunately,
I don't really need to know.
I don't know if I would expect to see a warning on a bottle of 80/90
saying don't use this in Mercedes manual transmissions. I have seen
bottles of power steering fluid that say OK for all but Honda power
steeering, and other bottles saying for use in Honda power steering.
I bought a bottle of some kind of oil for my power steering that is
supposedly the right stuff for Mercedes. Has a label in German and
cost $9/liter IIRC.
.
When we changed the fluid and filter in my automatic transmission,
we used Dexron/Mercon fluid, which my independent mechanic
(who sold the power steeering fluid) said was the right stuff. I
certainly hope so.
And I use S grade oil in my M102 engine, and don't change it as
often as I think I should. Some manual issued by Daimler-Benz
says every 7,500 miles. Oil gets pretty dark by then, and starts
to be consumed noticeably after maybe 5,000 miles. Oil and
filter change are on today's list of things to do.
___
http://www.okiebenz.com
For new parts see official list sponsor: http://www.buymbparts.com/
For used parts email [EMAIL PROTECTED]
To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
___
http://www.okiebenz.com
For new parts see official list sponsor: http://www.buymbparts.com/
For used parts email [EMAIL PROTECTED]
To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
