Oil change on 88 560sl - Page 2 - Mercedes-Benz Forum
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post #11 of 14 (permalink) Old 08-11-2019, 03:36 PM
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brad penn 20 w 50 goes in my m117
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post #12 of 14 (permalink) Old 08-13-2019, 03:50 PM
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I would read the threads on oil. These are older engines and what was developed for newer engines is not necessarily the best for us. Can it get by, yes, but the EPA mandated removing some of the wear additives in the newer oils so be careful. Take it fromsomeone who had to buy two new cams
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post #13 of 14 (permalink) Old Today, 07:26 AM
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There are still some special order oils with the necessary Zinc dialkyldithiophosphate. Valvoline Racing "off road" oil is one of those. You can add a container of Zinc dialkyldithiophosphate, though having the compound made with the oil is a better choice.


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post #14 of 14 (permalink) Old Today, 12:39 PM
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Originally Posted by Turbo510 View Post
I've got a similar situation with an '86 560SL which we recently bought. But I wouldn't be concerned about what had been used before, just use a quality synthetic going forward. I'll likely use what I put in my Audis; Mobil-1 European 0W-40. By the way, I tend to dislike commenting on "oil threads" but your question was relevant to me. My main concern is getting a drain pan with enough capacity for that engine.
I use the same oil (Mobil-1 European 0W-40) and haven't had any problems for over 2 years now. No idea what the previous owner used. As noted by other posters, oil opinions tend to trend all over the map.
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