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#1
08-29-2017, 08:55 PM
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Motor oil for 1986 560SEC
Hi Guys
Which motor oil should I use for southern California weather? Thanks
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1984 928S 1991 BMW 850 6 speed 1991 BMW 850 Automatic 1986 Mercedes 560 SEC 1988 BMW E30 Convertible manual 
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#2
08-29-2017, 09:20 PM
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Same as for Cape May
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#3
08-29-2017, 09:22 PM
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Hate to contribute to an oil thread but ....
My 560SL (same engine) was very happy with a synthetic 15w-40 diesel oil. The diesel oil has a high ZDDP (zinc) content which I think those engines crave. My choice is AMSOIL and my interval is 6000 miles.
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#6
08-31-2017, 06:23 AM
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8bender, to the best of my knowledge "factory fill" for that vintage engine was 15W40 mineral oil. So IMO it's best to use Mobil 1 15W50 in that engine. That's the oil I have been running in our early-to-mid 1990's MB vehicles for the past 18 years. I change oil (and filter) every 7,500 miles.
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Fred Hoelzle
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#8
08-31-2017, 09:26 AM
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Oil threads never go anywhere productive.
The net effect is something XX/40W or XX/50W, and a diesel rated oil can't hurt. 30W is too thin for your climate and not recommended in the factory books. I would do some research though before we blanket assume all diesel oils have tons of zinc in them I live in Ohio not SoCal so 20/50 makes stuff hard to start. I generally put 5/40 synthetic diesel oil in stuff, or 0/40. Because its usually easy to find and cheap at Walmart, Mobil1 has become my norm, but not for any real reason other than price and accessibility.
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68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500 Nissan GTR - Nissan Skyline GTS25T - Toyota GTFour - Rover Mini - Toyota Land Cruiser HJ60 - Cadillac Eldorado - BMW E30 - BMW 135i
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#9
08-31-2017, 04:00 PM
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8bender, I know nothing about Rotella T6. Perhaps you can do a "search" online and determine the benefits of using it. Unless the engine in your 1986 560SEC has recently been rebuilt, it probably doesn't make too much difference what oil you use, provided it is a high quality oil and is changed on a routine basis.
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Fred Hoelzle
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#10
09-01-2017, 12:05 AM
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Quote:
 It's a fairly large displacement, low-revving, and understressed engine. Any decent quality oil in the right approximate viscosity (see owner's manual) should be fine.That said, I like my T6. I change it about every 3,000 miles in the 300D, so it's probably expensive overkill. However, it also meets the specs for use in my Triumph, so I only have to buy one oil for both vehicles.
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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar. 83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles 08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles 88 Jaguar XJS V12 94,xxx miles. Work in progress.
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#11
09-01-2017, 10:48 AM
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my mechanic friend had a very negative opinion about 10w40 oil.
he thought it was like a 'jack of all trades master of none' kind of thing and attributed many engine issues he saw (in volvo shop) to the use of it. Quote:
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0o==o0 James 4:8 "...let us put aside the blindness of mind of those who can conceive of nothing higher than what is known through the senses" -Saint Gregory Palamas, ---Discourse on the Holy Transfiguration of Our Lord God and Savior Jesus Christ Centrally located in North East Central Pa.
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#12
09-01-2017, 11:58 AM
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Quote:
__________________
68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500 Nissan GTR - Nissan Skyline GTS25T - Toyota GTFour - Rover Mini - Toyota Land Cruiser HJ60 - Cadillac Eldorado - BMW E30 - BMW 135i
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