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1988 "Zender" 300CE Coupe, 2009 Renault Koleos, 2007 Kia Rio Sport
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Discussion Starter · #1 · (Edited)
Hi Guys
Being a relatively new MB owner and a first timer I have been contemplating lot's of things regarding my new vehicle and how to look after it. Being a European luxury vehicle I figure it should maybe have better treatment in the engine oil department than perhaps what the local mechanic might drizzle into it's innards !
I spent a fair amount of time reading posts and researching and came up with some sheets from an MB site which I have copied and pasted into my own pages for reference in case they (like so many links) go missing some day.
First up though here's a diagram from MB showing the viscosity/types it suggests for ambient temperature ranges.

 

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1988 "Zender" 300CE Coupe, 2009 Renault Koleos, 2007 Kia Rio Sport
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Discussion Starter · #2 · (Edited)
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'95 E300 DIESEL, '91 600SEL, '92 600SEL
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15-40w diesel grade oil!
+1

15W-40 is what MB designed & engineered all their gasoline & diesel engines with all the way past W124 production. It is also what MB used as the initial factory fill in all the cars, regardless of which climate the cars were destined for.
 

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1988 "Zender" 300CE Coupe, 2009 Renault Koleos, 2007 Kia Rio Sport
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Discussion Starter · #5 · (Edited)
And yes from this list I chose to use : drum roll please........




229.1 Approval and about half the price of Castrol/Mobile/Shell. :baby bottle:
 

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S124 250D & 300CE-24
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1988 "Zender" 300CE Coupe, 2009 Renault Koleos, 2007 Kia Rio Sport
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3,190 Posts
Discussion Starter · #9 ·
Generally depends on the temperature range of the area you live and use the car.

Just rememeber there are perceived advantages and disadvantages to using some oils though.

For example, Melbourne Austrlaia, where I live, is a moderate climate with no snow though it does get cold but it also gets very hot.
Using the chart up top I should match something with 0 to +5 low temp through 30+ high temp.
So I could be by its reckoning use 20W-40 but really thats a pretty thick brew.
As a normal environment I would normally go 10W or 15W.

I have run in the past 5W however the downside to that is if you have any worn parts such as the plug at the front of the timing cover, it seeps and weeps making a mess and inevitably you end up cleaning the stains and replacing oil. The good side to that though is 5W takes shorter amount of time to heat up to normal operating temperature.
And that means on an ageing engine, less wear and tear at start up of a cold engine.

Of course that sort of statement is subjective.
I guess truth would be difficult to prove unless two exactly same engines were run on a test bed under varying temperature but in the same operationally controlled environment.

The big thing to remember though is to look for a product with MB approval if you want to be sure and I think (someone correct me here if this is wrong) full Zinc included in the oil which aids wear and tear.

I use a Penrite spec MB approved 10W-40
 

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are these specs related to the engine type? or how, on the basis of these specs, choose whether 5W-40, 10W-40 or other is the right engine oil for my car?
Thanks Raoul,

In Brisbane/Australia I use a Penrite HPR 10 which is a 10W-50 Full Synthetic and am told by many (including some very good MB mechanics) that this is too high in viscosity, yet in checking with Penrite they verified that it does meet the 229.1 and 229.3 MB specs required (as below in the specs from Penrite for their HPR 10) -

INDUSTRY & MANUFACTURER'S SPECIFICATIONS
API SJ/CF
API SL/CF
API SM/CF
API SN/CF
BMW LL-01
BMW LL-98
BMW Longlife-01
Ford M2C153-F
Ford M2C153-G
Ford M2C905-A3
Ford M2C910-A
GM 9986126
GM-LL-B-025
Holden HN 2100
MB 229.1.
MB 229.3.
Peugeot PSA E-02
Rover RES.22.OL.22
VW 501 01
VW 502 00
VW 505 00
SUITABLE FOR USE WHERE SPECIFICATIONS BELOW ARE REQUIRED
(FOR OUT OF WARRANTY SERVICE)
ACEA A3/B3 (PRIOR TO 2017)
ACEA A3/B4 (PRIOR TO 2017)
 

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'94 E320 Coupe, '98 Carrera S, '23 E-450 All-Terrain
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56 Posts
Agreed. ..
An MB South East Zone Tech Manager suggested (E320) using a 15w-40 synthetic, or a dino/syn blend if ya like, throughout the year when here in the Hot Atlanta, South East.

Throughout the 90+ degree summer months, the '94 E320 coupe hasn't burned a drop of 15w-50 Mobil 1 with a 5,000 mi. OCI. Completed a 5K mi ATL - Vail - ATL Road Trip to boot.

With both Porsche & VW air cooled's in the house, there's plenty of 15w-50 Mobil 1 on hand . . .


+1

15W-40 is what MB designed & engineered all their gasoline & diesel engines with all the way past W124 production. It is also what MB used as the initial factory fill in all the cars, regardless of which climate the cars were destined for.
 

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2016 E350 wagon; 1994 E320 wagon
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7,997 Posts
said chart is exactly why I stick with 15W40, and because its good oil and relatively cheap at Costco, and the gallon jugs are so convenient for a vehicle that uses 7 quarts, I've been using Delo. The fact that its also the correct oil for my 2002 F250 Powerstroke 7.3 (which uses 15-16 quarts, eeek!), doesn't hurt at all.

This afternoon, I checked the oil on both our 250K+ mile M104s and both were exactly where I set them months ago, midway between high and low.
 

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1993 320E sedan
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I live in Brisbane - Australia

I am using Penrite 15w-60 full synthetic with extra zinc on my 1993 320E done 355,000 K's.

My Merc trained mechanic told me the most important number is the 15w bit as he says viscosity numbers detail an oils resistant to flow.

My oil consumption is approx 1 litre per 10,000k's.

Oil pressure registers a tad under the 3 mark on the gauge at normal operating temp in neutral at idle.

Just my experience.
 

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2016 E350 wagon; 1994 E320 wagon
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7,997 Posts
my naive understanding of multiweight oil numbers, the first number, like 15W, is how it behaves when cold, and the 2nd number, like 40, is how it behaves when hot. I don't think I'd use 15W60 unless it was consistently very hot, like over 100F/38C.

the Chevron Delo diesel oil I use indeed has more ZDDP (zinc) than modern auto oils. its also a high detergent oil, and the only folks I've heard say not to use it in gas engines have the theory that the extra detergent will dredge up muck from the bottom of the pan and send it into circulation and gum stuff up. I don't buy that. I've been using it in my 300E and my wife's E320 for over 5 years now without any issues. we've put about 50000 miles on my wife's wagon (270000 total now) and the 300E, I have no idea how many miles my kids put on it, but the odometer has been broken since shortly after we got it. my cabrio, I've only put around 25000 on, also using Delo 15W40.
 
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