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#1
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Systhetic oil for older diesels, or not ?
I heard from several people , that synthetic motor oils are not very good for older like 87ish MB diesels. Obviously people like Amsoil, see no reason for not to use it.
Any experience ? All comments appreciated. Thanks. |
#2
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That statement you have heard is NOT true. The engine does not know what kind of oil that it has had, nor does it care. You on the other hand do care and would be well advised to use the Amsoil synthetic.
Engines will take what ever you pour down the valve cover and I never saw one throw it back up.
__________________
1981 300D 147k 1998 VW Jetta Tdi 320k 2001 Dodge Ram 2500 141k 1979 300D 234k (sold) 1984 300D "Astor" 262k(sold) Mercedes How-To and Repair Pictorials I love the smell of diesel smoke in my hair |
#3
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I agree with Diesel Giant. I use full synthetic in my 69 220D. It slows down engine wear which is important in an engine 37 years old.
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#4
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I use Mobil 1 synthetic in my 82 and 83. The decision just comes down to cost.
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#5
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the two replies are correct.
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#6
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Run it if if you like. I run the Castrol Diesel stuff (dino), works fine for me.
__________________
I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG] |
#7
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The previous owner of my 300SD used Mobil's Delvac 15w40 and said that the owner before him also used Delvac....
Does Delvac do more to protect a diesel engine than, say, Mobil 1 synthetic, or vice versa? |
#8
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OK....Here is my question. I have a 1985 300D. Per the oils listed in the owers manual I am having a hard time finding full synthetic oil of the weights listed. What full synthenic brand and weight do you use for a 617 engine? I use Mobile 1 0W40 and 5W40 for my 1999 E300. Would that be OK to use?
P.S. I live in Ohio near the Michigan border so I drive I a year round broad temperature range. |
#9
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shell
shell rotella which is the tractor trailor diesel motor oil that
is really good... it now comes in synthetic and it cost about 10 bucks less than mobil one at walmart.... so an oil change with mobil one from walmart is 50 buck... its 32 bucks with shell rotella synthetic... |
#10
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I have always used Castrol Syntec 5W50 in all my vehicles.
__________________
1968 230S Automatic, Elfenbein 1975 O309D Executive Westfalia Camper Bus, Blau/ Weiss 1972 280SEL 4,5 Dunkelrot 1966 VW Type 34 "Grosser" Karmann-Ghia 1963 VW 1500 Variant Pearlweiss 1969 VW Variant Automatic, Perugruen 1971 VW Squareback Automatic, Clementine Orange 2001 E320 4Matic Wagon- Our belated welcome to the 21st century! Polar White 1973 280SEL 4,5 Sliding Roof "The Bomb", Dunkelblau. |
#11
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I use Castrol Diesel and I like changing it every 3,000 miles.
Like Larry B. says; "Change it HOT & often."
__________________
'87 924S '81 280SEL Sold -> 81 300SD - 93 300E w/ 3.2 85 300D- 79 300SD 82 300CD 83 300CD - CA 87 190E 5 spd 87 Porsche 924S "..I'll take a simple "C" to "G" and feel brand new about it..." |
#12
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Quote:
Of course, you can use any diesel rated oil in the proper weight, conventional or synthetic. Any good 5W40, 10W40, or 15W40 should be OK. However, my experience is that conventional 15W40 gets pretty thick and cranks slowly on cold mornings. Last edited by Craig; 04-14-2006 at 12:35 AM. |
#13
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Quote:
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#14
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Anyone here have any experience with lubro-moly engine oils?
__________________
"spreading a trail of obnoxious where ever we go" 1981 300sd w/ 341,500 miles http://www.wecrash.com/pics/ddda_banner.gif |
#15
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Quote:
__________________
1981 300D 147k 1998 VW Jetta Tdi 320k 2001 Dodge Ram 2500 141k 1979 300D 234k (sold) 1984 300D "Astor" 262k(sold) Mercedes How-To and Repair Pictorials I love the smell of diesel smoke in my hair |
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