[W126 Coupe] oil additives

[Shayegan, Richard]

There is no way for synthetic to be bad for an engine, though it can be
a PITA. If your engine leaks or burns conventional oil, it will leak or
burn more with synthetic, but if it doesn't leak or burn conventional at
all, then it won't leak or burn synthetic. I'm guessing with 54,000
miles it's not leaking or burning. From what I hear Mobil 1 is very
good, and anything comparable (like Amsoil) comes down to just personal
opinion.

Richard

 

________________________________

From: mbcoupes-bounces at mbcoupes.com
[mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of Ken Cribbs
Sent: Saturday, August 27, 2005 7:40 AM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] oil additives

 

My '88 560 SEC has only 54K (54,000) miles, all in Hawaii's warm weather
climate, and its engine runs beautifully.  At its last oil change (at
52K miles) the mechanic switched to Mobil One synthetic.

Another mechanic friend agrees with using synthetic oil, but recommends
Synergen instead of Mobil One.  Another mechanic friend says synthetic
oils are bad for pre-1996 Benz engines and recommends that I should go
back to non-synthetic Castrol.

All suggestions are appreciated!

Aloha,
--KC



At 12:55 AM 8/27/2005, you wrote:



oil additives... what is the consensus yes or no 
   
I say definitely NO. Miracle slick-ums are usually one or another type
of SALT, which bonds to the metal tenaciously, other than the teflon
crap which is a cup of very fine hard plastic flour. BTW, Dupont
prohibits the sale of brand name Teflon to any company intending to sell
it as oil additive. SOme of the Miracle slick-ums really do work as
advertised, but they are  not used by the oil companies because of the
potential for corrosion, and some of them say change the oil "at
recommended intervals" because any buildup of moisture is VERY BAD with
the salt bonded to the metal. Ford indicted one of the miracle lubes on
their diesels, they sliced a block up into thin pieces trying to
discover why they were perforating between oil and water passageways,
expecting to find it was corrosion from the water jacket, but it was
actually corrosion from the pil passages into the water jacket.
 
You don't want anything with any salt in an aluminum engine. Straight
dino oil has these engines lasting 300,000 with no ring wear, what would
you want to use additives for anyway?
 
Nathan

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