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  #1  
Old 06-29-2008, 08:52 PM
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M130 Engine Oil Selection

I did an oil and filter change on the 250 yesterday (in addition to a valve adjust and slapping on a new valve cover gasket) and I used the same 15W40 Rotella that I put in my 240D (and Suzuki Samurai and Lincoln Town Car when I had them). I got to wondering what you other vintage gasser owners use. So, what do you like?

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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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  #2  
Old 06-29-2008, 11:51 PM
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I will be using Rotella when I get my engine back together. 15W40 seems a little thick to me but if it works for you, go for it.
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Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.
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  #3  
Old 06-30-2008, 04:12 PM
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So what's different about Rotella and the 'diesel' engine oils?

I just put Mobil1 10W40 ("high-mileage") in the '72, but I haven't fired it yet. (still putting the transmission back in).
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  #4  
Old 07-02-2008, 07:53 PM
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I've been using Castrol GTX dino oil for years in my 250C.
Whatever weight I can get, as long as the larger viscosity # is a 40 or 50.....

Jim
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  #5  
Old 07-02-2008, 08:25 PM
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Diesel oils have more of certain additives that are good for non-roller cam followers. I read an article on it in Hot Rod, but I can't remember when.
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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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  #6  
Old 07-03-2008, 09:46 AM
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They also have detergents suited for diesel combustion and more detergents in general. While this helps keep your engine squeaky clean, it can be tough on old gaskets, especially old-style main seals. Diesel oil has good protection and ratings however and is an excellent quality oil typically. Since the diesels have the propensity to generate a lot of soot, the oil is designed to deal with this. In my old girl, with her 40+ year old rope type main seal, I'm sticking to the tried and true. Basic 10w-30 dino juice. So far no leaks on an original engine, but I do change the oil frequently to try to prevent the nasty buildup. This article makes diesel oil sound downright scary!

http://www.zddplus.com/TechBrief6%20-%20Diesel%20Oil%20Use%20in%20Classic%20and%20High-Performance%20Gasoline%20Engines.pdf

I wouldn't think it's all that bad, but you might as well stick to what was designed for your engine. As sad as it sounds, one of the main reasons I liked the rotella was because it was cheep and came in those large containers. Now thankfully, they're all starting to use larger containers.
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Last edited by todds; 07-03-2008 at 01:04 PM.
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  #7  
Old 07-03-2008, 07:45 PM
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Please note that the article was written by someone who wants to sell us his ZDDP oil additive.

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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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