[W126 Coupe] Oil change

[Dick Spellman]

Mark,

There are only a few Mobil1 oils that are listed as acceptable for the 
MB's.  0-40 and 15-50 in so far as I know.  I use 15-50 in the higher 
rpm in-line 6 (300's) and 0-40 in my 380SEC.   If you go to the Mobil1 
website and select the 'help me decide' option for oil based on vehicle 
make model and year it will offer you the correct selection.

I checked with another group (mercedeslist.com) sometime ago re: the 
300's and while not listed as recommended by Mobil1, I have been using 
the 15-50 now for many years on this particular engine type.  If you 
choose to use this viscosity, please check the low ambient air temp for 
your area to be sure it is within spec's for use with this oil.  So far, 
it seems a good choice after several 300e's and se's with high mileage 
and typically no less than 100k that I have added.  All told maybe 
4-500k miles.

-\Dick


On 11/15/2010 12:29 AM, Mark - FosterFirst wrote:

>

> Hi Legs ( & Markus ),

>

> Sounds logical and I am going to start using synthetic. I have a 1982 

> 380SEC. Any suggestions as to which multi-viscosity grade would be 

> best for this engine -- as it is not a 560SEC. Would there be any 

> difference ?

>

> Many thanks,

>

> Mark

>

> *From:*mbcoupes-bounces at mbcoupes.com 

> [mailto:mbcoupes-bounces at mbcoupes.com] *On Behalf Of *190girl

> *Sent:* November-14-10 8:35 PM

> *To:* mbcoupes at mbcoupes.com

> *Cc:* E D R

> *Subject:* Re: [W126 Coupe] Oil change

>

> For Ronny and Other Owners,

>

> I wholeheartedly agree with Markus and his recommendation on the use 

> of synthetic motor oils in the older classic Mercedes-Benz.   My 

> comments are based on my experience with the Mobil 1 family of 

> synthetic lubricants, however, I am sure users of synthetics from 

> other manufacturers such as Amsoil or Castrol can share similar 

> positive experiences.

>

> Having  been fortunate enough to own and maintain numerous classic 

> Mercedes-Benz, including perhaps the finest OEM 1991 560 SEC in the 

> United States, as well as other high lines, I can attest to the 

> excellent performance of synthetics in my fleet which spans model 

> years from 1975 to the present.

>

> In the case of older vehicles Mobil 1 offers several multi-viscosity 

> grade oils specifically for higher mileage vehicles ranging from 5W-30 

> to 10W-40.   Ironically, these oils serve to mitigate problems caused 

> by the use of conventional motor oils..

>

> From the ExxonMobil literature: "Mobil 1 can help increase the life of 

> all engines, even those in older vehicles and/or with high mileage. 

> The extra cleaners in Mobil 1 can help clear stuck rings to help 

> restore engine efficiency. In fact, Mobil 1 with SuperSynTM 10W-30 is 

> ideal for these applications. Keep in mind, however, that Mobil 1 

> cannot correct an existing engine problem."

>

> "As your engine ages, seals deteriorate, oil burn-off increases and 

> sludge can build up, which can all result ina decrease in engine 

> performance and, ultimately, reduce engine life. Mobil 1 High Mileage 

> 10W-30 motor oil is designed to maximize engine performance and help 

> extend engine life."

>

> The Mercedes-Benz 560 SEC is quite an impressive piece of 

> engineering.  To consider using conventional oil in such a marvel of 

> automotive finesse, and even throwing in a few facts from GM, is like 

> comparing roadside diner burger (mystery) meat vs haute cuisine filet 

> mignon.    In my many years of owning fine automobiles and using 

> synthetics for any age of vehicle, I have never had ANY engine 

> problems, not even something as minor as occasional oil drips.    By 

> the way, Mobil 1 has been around since 1974, which makes the brand 

> older than many of the vehicles in this forum.

>

> To summarize my experience and recommendations, use synthetic oil 

> without reservation in your 1987 560 SEC.  It will forgive years of 

> using conventional lubricants and improve engine protection and 

> performance for many years maximum cruising pleasure. (And who doesn't 

> like THAT?)  :)

>

> To read more about Mobil 1 here are some useful links:

>

> https://www.mobiloil.com/USA-English/MotorOil/Oils/Mobil_1.aspx

>

> https://www.mobiloil.com/USA-English/MotorOil/Oils/Mobil_1_High_Mileage_10W-30.aspx

>

> Kind regards,

>

> Star Cruiser

>

> Legs

>

>

>

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